Spectrometer using a tunable diode laser
|
|
- Marilyn Watson
- 5 years ago
- Views:
Transcription
1 Spectrometer using a tunable diode laser Ricardo Vasquez Department of Physics, Purdue University, West Lafayette, IN April, 2000 In the following paper the construction of a simple spectrometer using a diode laser, a Rubidium cell and a photodiode detector. The absorption spectra of a Rubidium atomic transitions: 85 Rb (F =3 F ) 87 Rb (F =1 F ) 85 Rb (F =2 F ) 87 Rb (F =2 F ) [4] can be analyzed. The absorption spectra spread agreed with the calculated Doppler broadening for the atoms and temperatures used. It s important to follow carefully the instructions since diode lasers are extremely sensitive to numerous factors. I. Introduction Spectroscopy is a technique that measures the response of material systems to radiation as a function of frequency. Through the relation E = hv (energy and frequency) observed resonance in the light matter interactions (e.g. fluorescence) give information about the atomic energy transitions of a certain material. [1] A spectroscopic transition may take an atom (in our case Rubidium) between one state to another. For example, one can describe the transition from an upper energy state, A, and a lower energy state, B. Thus A B implies emission of radiation, since the transition occurs from a higher to a lower state, and A B means absorption of radiation, since the transition goes from a lower to a higher state. [2] Since the laser built in the previous experiment is tunable to a very narrow frequency, we can sweep different frequencies around the needed frequency of an atomic transition just by changing finely the angle between the grating and the laser beam with a piezoelectric transducer. We know that the frequency modes that our laser enters have a discrete behavior (e.g. fig 1). Some modes are close to energy transitions of rubidium atoms (780nm). Therefore one can make the diode laser beam go through a Rb cell to analyze the spectra of absorbed beam at a certain atomic transition once the diode laser is adjusted to the correct mode. This mode hoping is dependent on temperature that is why it s extremely important that once an atomic transition is found, the temperature remains stable in all times. We used a photodiode detector to measure the intensity of the beam that makes it across the Rb cell. The absorption of radiation around an atomic transition doesn t occur in a very discrete manner. It basically spreads out like a Gaussian, slowly changing with respect to frequency. The spreading is due to relative velocity between the diode and the atoms in the cell, giving a Doppler effect in frequency. In other words, some atoms are moving towards the laser beam some others move away from it, therefore the atoms see some apparent frequencies different from the actual emitted by the laser. This is called Doppler broadening. The Doppler broadening is temperature dependent, so the hotter the gas the larger the broadening would be. [2]
2 II. Procedure Fig1.- Laser output wavelength vs. temperature of the laser. The short continuous segments indicate the tuning of the optical length of the cavity for a given longitudinal mode. When the peak of the gain medium has shifted too far, the laser jumps to another mode. (figure reproduce from reference [3] without permission) The optical setup is simple. A single beam has to go through the Rubidium cell.(see fig 2). On the other end of the cell we installed a photodiode detector that translated the radiation shinning on its aperture into a current signal. In order to find an atomic transition, the grating has to be carefully aligned. The alignment is not a trivial task. It s recommended installing a CCD television camera facing the rubidium cell. It is not essential, but doing the alignment in a dark room was helpful. First the temperature of the diode laser was lowered to about 10 o C. Observe the behavior of the beam going across the cell while the temperature drops. Three or four atomic transitions were found just by temperature changes. The track of the beam would appear bright visible on the screen when this happens (fluorescence). We recorded the temperature when these transitions happened and then we set the temperature controller to one of the temperatures where fluorescence occurred. It s important to have a very stable temperature to start working on the grating s position. It depends on the temperature controlling system how long it takes for the temperature to stabilize. We waited for the temperature readings to remain constant (it took us a couple of hours). Diode Laser Rubidium Cell Fig 2. Optical setup for the simple absorption of the diode laser beam. Photodiode
3 Then, again with the light off, the laser was tuned mechanically by adjusting the screws on the optical mirror mount: changing the angle of reflection of the grating. They weren t adjusted more than a complete turn since we did not want to loose optical feedback while the grating is positioned correctly. The diode laser is tuned until fluorescence is found. If no fluorescence is found at any grating angle the temperature should be changed ±0.5 or ±1.0 o C and then the search for the absorption line should be repeated. This process should be done iteratively until fluorescence is found. Patience is needed since it takes time for the diode to reach thermal equilibrium again. If fluorescence is not found after a few (4 or 5) iterations, it s recommended to check the gratings position once again and make sure that the laser is still tuning in the desired range, that the optical feedback is not lost with tuning.[4] Once fluorescence is found, the current on the laser can be adjusted to maximize fluorescence. The temperature should not be changed anymore. Then the piezoelectric transducer can be driven to start a scanning of the absorption of the beam at the atomic transition found. The photodiode signal was amplified using a 1k Ω resistor and then the signal was read by an oscilloscope. The piezoelectric was connected to a signal generator, a triangular signal of about ±10V was produced with 10-30Hz of frequency. The graph gives you the absorption spectra of 85 Rb (F =3 F ) a rubidium atomic transition.(see fig 3) Fig 3. Absorption of single beam in 85 Rb, F=3 F [4] It can be seen that the absorption is not a sharp deep peak it is a broad slowly changing reduction of intensity and slowly picking up again. This is due to the Doppler broadening. According to Whiffen D. H. [2] the doppler broadening can be obtained by ν=[2ν 2 kt(ln)/mc 2 ] 1/2. In our case, ν= 3.846e14Hz,T=300 o K, and M Rubidium =1.45e-25kg. The k is the Boltzmann Constant and c is the speed of light. The theoretical Doppler broadening is around 250Mhz. This result agrees with the Rb atomic transitions shown in in figure 4, reproduced from reference [4], which shows that the range that a transition cover is on the same order as the range calculated with the ecuation.
4 III. Results Our experiment gave us similar results as the ones shown in fig 3. The results observed on the oscilloscope had some discrepancies. The graph instead of showing a single deep, it had a couple of them, and instead of being stable on the screen it look more like the same graph was doubled and shifted one with respect to the other. This was thought to be due to the piezoelectric hysterissis. One of the graphs could have been the one going up in voltage across the piezoelectric and the other one could have been the
5 signal going down in voltage. It was hard to have complete control over the diode laser at the end of the experiment, more time was needed to understand and reproduce the diode laser s behavior thoroughly. IV. Recommendations One can actually install an optical lay out to build a saturated absorption spectrometer. That s means, one can get a Doppler-free reading of the absorption spectra of a single beam crossing the Rubidium cell. This would give a better understanding of what atomic transitions we are observing since there is no Doppler broadening that would erase traces of the absorbed signal. Acknowledgements To the support of Prof. Steve Durbin, Krystl Adams, Erick Dedrick, and Jacob Millspaw, and Ryan Pringer. References: [1] Suter, D.; The Physics of Laser-Atom Interactions; Cambridge University Press & 22. [2] Whiffen, D. H. ; Spectroscopy; John Wiley and Sons Inc. ; 1966 pp 1-22 [3] Wieman C. et al.; Using diode lasers for atomic physics; Rev. Sci. Instrum.62(1), Jan pp [4] MacAdam K.B., A narrow-band tunable diode laser system with grating feedback, and a saturated absorption spectrometer for Cs and Rb; Am. J. Phys. 60 (12), December 1992, pp
A Narrow-Band Tunable Diode Laser System with Grating Feedback
A Narrow-Band Tunable Diode Laser System with Grating Feedback S.P. Spirydovich Draft Abstract The description of diode laser was presented. The tuning laser system was built and aligned. The free run
More informationLaser Locking with Doppler-free Saturated Absorption Spectroscopy
Laser Locking with Doppler-free Saturated Absorption Spectroscopy Paul L. Stubbs, Advisor: Irina Novikova W&M Quantum Optics Group May 12, 2010 Abstract The goal of this project was to lock the frequency
More informationDoppler-Free Spetroscopy of Rubidium
Doppler-Free Spetroscopy of Rubidium Pranjal Vachaspati, Sabrina Pasterski MIT Department of Physics (Dated: April 17, 2013) We present a technique for spectroscopy of rubidium that eliminates doppler
More informationR. J. Jones Optical Sciences OPTI 511L Fall 2017
R. J. Jones Optical Sciences OPTI 511L Fall 2017 Semiconductor Lasers (2 weeks) Semiconductor (diode) lasers are by far the most widely used lasers today. Their small size and properties of the light output
More informationHigh-frequency tuning of high-powered DFB MOPA system with diffraction limited power up to 1.5W
High-frequency tuning of high-powered DFB MOPA system with diffraction limited power up to 1.5W Joachim Sacher, Richard Knispel, Sandra Stry Sacher Lasertechnik GmbH, Hannah Arendt Str. 3-7, D-3537 Marburg,
More informationThe Saturated Absorption Spectroscopy Lab
The Saturated Absorption Spectroscopy Lab 1 Purpose Joshua Symonds, Ian Kleckner, Brian Anderson Advanced Lab, Fall 2005 Atoms can only absorb and emit photons of very specific, quantized energies, which
More informationDIODE LASER SPECTROSCOPY (160309)
DIODE LASER SPECTROSCOPY (160309) Introduction The purpose of this laboratory exercise is to illustrate how we may investigate tiny energy splittings in an atomic system using laser spectroscopy. As an
More informationSimple System for Active Frequency Stabilization of a Diode Laser in an External Cavity
Laser Physics, Vol. 15, No. 11, 25, pp. 1 5. Original Text Copyright 25 by Astro, Ltd. English Translation Copyright 25 by MAIK Nauka /Interperiodica (Russia). RUBRRRIKA RUBRIKA Simple System for Active
More informationPh 77 ADVANCED PHYSICS LABORATORY ATOMIC AND OPTICAL PHYSICS
Ph 77 ADVANCED PHYSICS LABORATORY ATOMIC AND OPTICAL PHYSICS Diode Laser Characteristics I. BACKGROUND Beginning in the mid 1960 s, before the development of semiconductor diode lasers, physicists mostly
More informationMASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Electrical Engineering and Computer Science
Student Name Date MASSACHUSETTS INSTITUTE OF TECHNOLOGY Department of Electrical Engineering and Computer Science 6.161 Modern Optics Project Laboratory Laboratory Exercise No. 6 Fall 2010 Solid-State
More informationA continuous-wave optical parametric oscillator for mid infrared photoacoustic trace gas detection
A continuous-wave optical parametric oscillator for mid infrared photoacoustic trace gas detection Frank Müller, Alexander Popp, Frank Kühnemann Institute of Applied Physics, University of Bonn, Wegelerstr.8,
More informationZeeman Shifted Modulation Transfer Spectroscopy in Atomic Cesium
Zeeman Shifted Modulation Transfer Spectroscopy in Atomic Cesium Modulation transfer spectroscopy (MTS) is a useful technique for locking a laser on one of the closed cesium D transitions. We have focused
More informationHigh-power semiconductor lasers for applications requiring GHz linewidth source
High-power semiconductor lasers for applications requiring GHz linewidth source Ivan Divliansky* a, Vadim Smirnov b, George Venus a, Alex Gourevitch a, Leonid Glebov a a CREOL/The College of Optics and
More informationUNMATCHED OUTPUT POWER AND TUNING RANGE
ARGOS MODEL 2400 SF SERIES TUNABLE SINGLE-FREQUENCY MID-INFRARED SPECTROSCOPIC SOURCE UNMATCHED OUTPUT POWER AND TUNING RANGE One of Lockheed Martin s innovative laser solutions, Argos TM Model 2400 is
More informationUniversal and compact laser stabilization electronics
top-of-fringe LaseLock LaseLock Universal and compact laser stabilization electronics Compact, stand-alone locking electronics for diode lasers, dye lasers, Ti:Sa lasers, or optical resonators Side-of-fringe
More informationSECOND HARMONIC GENERATION AND Q-SWITCHING
SECOND HARMONIC GENERATION AND Q-SWITCHING INTRODUCTION In this experiment, the following learning subjects will be worked out: 1) Characteristics of a semiconductor diode laser. 2) Optical pumping on
More informationB. Cavity-Enhanced Absorption Spectroscopy (CEAS)
B. Cavity-Enhanced Absorption Spectroscopy (CEAS) CEAS is also known as ICOS (integrated cavity output spectroscopy). Developed in 1998 (Engeln et al.; O Keefe et al.) In cavity ringdown spectroscopy,
More informationSpectroscopy of Ruby Fluorescence Physics Advanced Physics Lab - Summer 2018 Don Heiman, Northeastern University, 1/12/2018
1 Spectroscopy of Ruby Fluorescence Physics 3600 - Advanced Physics Lab - Summer 2018 Don Heiman, Northeastern University, 1/12/2018 I. INTRODUCTION The laser was invented in May 1960 by Theodor Maiman.
More informationSpectroscopy in the UV and Visible: Instrumentation. Spectroscopy in the UV and Visible: Instrumentation
Spectroscopy in the UV and Visible: Instrumentation Typical UV-VIS instrument 1 Source - Disperser Sample (Blank) Detector Readout Monitor the relative response of the sample signal to the blank Transmittance
More informationR. J. Jones College of Optical Sciences OPTI 511L Fall 2017
R. J. Jones College of Optical Sciences OPTI 511L Fall 2017 Active Modelocking of a Helium-Neon Laser The generation of short optical pulses is important for a wide variety of applications, from time-resolved
More informationThermal Monitor. PI Feedback TL074. Opamp #3. Set Point Monitor. Figure 1. PI temperature control servolock circuit.
References. [1] K.B. MacAdam, A. Steinback and C. Wieman. A narrow-band tunable diode laser system with grating feedback, and a saturated absorption spectrometer for Cs and Rb. Am. J. Phys. 60, 1098 (1992).
More informationCHAPTER 7. Components of Optical Instruments
CHAPTER 7 Components of Optical Instruments From: Principles of Instrumental Analysis, 6 th Edition, Holler, Skoog and Crouch. CMY 383 Dr Tim Laurens NB Optical in this case refers not only to the visible
More informationECEN. Spectroscopy. Lab 8. copy. constituents HOMEWORK PR. Figure. 1. Layout of. of the
ECEN 4606 Lab 8 Spectroscopy SUMMARY: ROBLEM 1: Pedrotti 3 12-10. In this lab, you will design, build and test an optical spectrum analyzer and use it for both absorption and emission spectroscopy. The
More informationOptodevice Data Book ODE I. Rev.9 Mar Opnext Japan, Inc.
Optodevice Data Book ODE-408-001I Rev.9 Mar. 2003 Opnext Japan, Inc. Section 1 Operating Principles 1.1 Operating Principles of Laser Diodes (LDs) and Infrared Emitting Diodes (IREDs) 1.1.1 Emitting Principles
More informationConstruction and Characterization of a Prototype External Cavity Diode Laser
Construction and Characterization of a Prototype External Cavity Diode Laser Joshua Wienands February 8, 2011 1 1 Introduction 1.1 Laser Cooling Cooling atoms with lasers is achieved through radiation
More informationCOMPONENTS OF OPTICAL INSTRUMENTS. Chapter 7 UV, Visible and IR Instruments
COMPONENTS OF OPTICAL INSTRUMENTS Chapter 7 UV, Visible and IR Instruments 1 Topics A. GENERAL DESIGNS B. SOURCES C. WAVELENGTH SELECTORS D. SAMPLE CONTAINERS E. RADIATION TRANSDUCERS F. SIGNAL PROCESSORS
More informationCOMPONENTS OF OPTICAL INSTRUMENTS. Topics
COMPONENTS OF OPTICAL INSTRUMENTS Chapter 7 UV, Visible and IR Instruments Topics A. GENERAL DESIGNS B. SOURCES C. WAVELENGTH SELECTORS D. SAMPLE CONTAINERS E. RADIATION TRANSDUCERS F. SIGNAL PROCESSORS
More informationSA210-Series Scanning Fabry Perot Interferometer
435 Route 206 P.O. Box 366 PH. 973-579-7227 Newton, NJ 07860-0366 FAX 973-300-3600 www.thorlabs.com technicalsupport@thorlabs.com SA210-Series Scanning Fabry Perot Interferometer DESCRIPTION: The SA210
More informationBLACKBODY RADIATION PHYSICS 359E
BLACKBODY RADIATION PHYSICS 359E INTRODUCTION In this laboratory, you will make measurements intended to illustrate the Stefan-Boltzmann Law for the total radiated power per unit area I tot (in W m 2 )
More informationLaser frequency stabilization and large detuning by Doppler-free dichroic lock technique: Application to atom cooling
PRAMANA c Indian Academy of Sciences Vol. 65, No. 3 journal of September 2005 physics pp. 403 411 Laser frequency stabilization and large detuning by Doppler-free dichroic lock technique: Application to
More information레이저의주파수안정화방법및그응용 박상언 ( 한국표준과학연구원, 길이시간센터 )
레이저의주파수안정화방법및그응용 박상언 ( 한국표준과학연구원, 길이시간센터 ) Contents Frequency references Frequency locking methods Basic principle of loop filter Example of lock box circuits Quantifying frequency stability Applications
More informationIntroduction Fundamentals of laser Types of lasers Semiconductor lasers
ECE 5368 Introduction Fundamentals of laser Types of lasers Semiconductor lasers Introduction Fundamentals of laser Types of lasers Semiconductor lasers How many types of lasers? Many many depending on
More informationvisibility values: 1) V1=0.5 2) V2=0.9 3) V3=0.99 b) In the three cases considered, what are the values of FSR (Free Spectral Range) and
EXERCISES OF OPTICAL MEASUREMENTS BY ENRICO RANDONE AND CESARE SVELTO EXERCISE 1 A CW laser radiation (λ=2.1 µm) is delivered to a Fabry-Pérot interferometer made of 2 identical plane and parallel mirrors
More information[4] (b) Fig. 6.1 shows a loudspeaker fixed near the end of a tube of length 0.6 m. tube m 0.4 m 0.6 m. Fig. 6.
1 (a) Describe, in terms of vibrations, the difference between a longitudinal and a transverse wave. Give one example of each wave.................... [4] (b) Fig. 6.1 shows a loudspeaker fixed near the
More informationDeveloping an Electronically Controlled External Cavity Diode Laser System for use in Atomic Spectroscopy
McNair Scholars Research Journal Volume 10 Issue 1 Article 4 2017 Developing an Electronically Controlled External Cavity Diode Laser System for use in Atomic Spectroscopy Samuel C. Carano scarano@emich.edu
More informationCHAPTER 5 FINE-TUNING OF AN ECDL WITH AN INTRACAVITY LIQUID CRYSTAL ELEMENT
CHAPTER 5 FINE-TUNING OF AN ECDL WITH AN INTRACAVITY LIQUID CRYSTAL ELEMENT In this chapter, the experimental results for fine-tuning of the laser wavelength with an intracavity liquid crystal element
More informationCONFIGURING. Your Spectroscopy System For PEAK PERFORMANCE. A guide to selecting the best Spectrometers, Sources, and Detectors for your application
CONFIGURING Your Spectroscopy System For PEAK PERFORMANCE A guide to selecting the best Spectrometers, s, and s for your application Spectral Measurement System Spectral Measurement System Spectrograph
More informationImproving the Collection Efficiency of Raman Scattering
PERFORMANCE Unparalleled signal-to-noise ratio with diffraction-limited spectral and imaging resolution Deep-cooled CCD with excelon sensor technology Aberration-free optical design for uniform high resolution
More informationCompact tunable diode laser with diffraction limited 1 Watt for atom cooling and trapping
Compact tunable diode laser with diffraction limited 1 Watt for atom cooling and trapping Sandra Stry a, Lars Hildebrandt a, Joachim Sacher a Christian Buggle b, Mark Kemmann b, Wolf von Klitzing b a Sacher
More informationLight for Ultra Cold Molecules Final Report for PHYS349
Light for Ultra Cold Molecules Final Report for PHYS349 Friedrich Kirchner April 28, 2006 In this final report, I will describe some of the work I did as part of my project in Kirk Madison s lab. The report
More informationCO2 laser heating system for thermal compensation of test masses in high power optical cavities. Submitted by: SHUBHAM KUMAR to Prof.
CO2 laser heating system for thermal compensation of test masses in high power optical cavities. Submitted by: SHUBHAM KUMAR to Prof. DAVID BLAIR Abstract This report gives a description of the setting
More informationtaccor Optional features Overview Turn-key GHz femtosecond laser
taccor Turn-key GHz femtosecond laser Self-locking and maintaining Stable and robust True hands off turn-key system Wavelength tunable Integrated pump laser Overview The taccor is a unique turn-key femtosecond
More informationQuantum frequency standard Priority: Filing: Grant: Publication: Description
C Quantum frequency standard Inventors: A.K.Dmitriev, M.G.Gurov, S.M.Kobtsev, A.V.Ivanenko. Priority: 2010-01-11 Filing: 2010-01-11 Grant: 2011-08-10 Publication: 2011-08-10 Description The present invention
More informationSUPPLEMENTARY INFORMATION
SUPPLEMENTARY INFORMATION doi:10.1038/nature10864 1. Supplementary Methods The three QW samples on which data are reported in the Letter (15 nm) 19 and supplementary materials (18 and 22 nm) 23 were grown
More informationPeriod 3 Solutions: Electromagnetic Waves Radiant Energy II
Period 3 Solutions: Electromagnetic Waves Radiant Energy II 3.1 Applications of the Quantum Model of Radiant Energy 1) Photon Absorption and Emission 12/29/04 The diagrams below illustrate an atomic nucleus
More informationDiode Laser Control Electronics. Diode Laser Locking and Linewidth Narrowing. Rudolf Neuhaus, Ph.D. TOPTICA Photonics AG
Appl-1012 Diode Laser Control Electronics Diode Laser Locking and Linewidth Narrowing Rudolf Neuhaus, Ph.D. TOPTICA Photonics AG Introduction Stabilized diode lasers are well established tools for many
More informationFabry Perot Resonator (CA-1140)
Fabry Perot Resonator (CA-1140) The open frame Fabry Perot kit CA-1140 was designed for demonstration and investigation of characteristics like resonance, free spectral range and finesse of a resonator.
More informationMulti-photon Absorption in Optical Pumping of Rubidium
Multi-photon Absorption in Optical Pumping of Rubidium Xinyi Xu (ID PIN:A51481739) Department of Physics and Astronomy Michigan State University Abstract: In optical pumping of rubidium, a new kind of
More informationAn Auto-Locked Diode Laser System for Precision Metrology
An Auto-Locked Diode Laser System for Precision Metrology H. C. Beica a, A. Carew b, A. Vorozcovs c, P. Dowling d, A. Pouliot e, G. Singh f, and A. Kumarakrishnan g a Department of Physics and Astronomy,
More informationHigh resolution cavity-enhanced absorption spectroscopy with a mode comb.
CRDS User meeting Cork University, sept-2006 High resolution cavity-enhanced absorption spectroscopy with a mode comb. T. Gherman, S. Kassi, J. C. Vial, N. Sadeghi, D. Romanini Laboratoire de Spectrométrie
More informationCharacteristics of absorption and dispersion for rubidium D 2 lines with the modulation transfer spectrum
Characteristics of absorption and dispersion for rubidium D 2 lines with the modulation transfer spectrum Jing Zhang, Dong Wei, Changde Xie, and Kunchi Peng The State Key Laboratory of Quantum Optics and
More informationUniversity of Wisconsin Chemistry 524 Spectroscopic Components *
University of Wisconsin Chemistry 524 Spectroscopic Components * In journal articles, presentations, and textbooks, chemical instruments are often represented as block diagrams. These block diagrams highlight
More informationFPPO 1000 Fiber Laser Pumped Optical Parametric Oscillator: FPPO 1000 Product Manual
Fiber Laser Pumped Optical Parametric Oscillator: FPPO 1000 Product Manual 2012 858 West Park Street, Eugene, OR 97401 www.mtinstruments.com Table of Contents Specifications and Overview... 1 General Layout...
More informationTemporal coherence characteristics of a superluminescent diode system with an optical feedback mechanism
VI Temporal coherence characteristics of a superluminescent diode system with an optical feedback mechanism Fang-Wen Sheu and Pei-Ling Luo Department of Applied Physics, National Chiayi University, Chiayi
More informationKeysight Technologies Using a Wide-band Tunable Laser for Optical Filter Measurements
Keysight Technologies Using a Wide-band Tunable Laser for Optical Filter Measurements Article Reprint NASA grants Keysight Technologies permission to distribute the article Using a Wide-band Tunable Laser
More informationWavelength Control and Locking with Sub-MHz Precision
Wavelength Control and Locking with Sub-MHz Precision A PZT actuator on one of the resonator mirrors enables the Verdi output wavelength to be rapidly tuned over a range of several GHz or tightly locked
More informationChemistry 524--"Hour Exam"--Keiderling Mar. 19, pm SES
Chemistry 524--"Hour Exam"--Keiderling Mar. 19, 2013 -- 2-4 pm -- 170 SES Please answer all questions in the answer book provided. Calculators, rulers, pens and pencils permitted. No open books allowed.
More informationUltraviolet Visible Infrared Instrumentation
Ultraviolet Visible Infrared Instrumentation Focus our attention on measurements in the UV-vis region of the EM spectrum Good instrumentation available Very widely used techniques Longstanding and proven
More informationPowerful Single-Frequency Laser System based on a Cu-laser pumped Dye Laser
Powerful Single-Frequency Laser System based on a Cu-laser pumped Dye Laser V.I.Baraulya, S.M.Kobtsev, S.V.Kukarin, V.B.Sorokin Novosibirsk State University Pirogova 2, Novosibirsk, 630090, Russia ABSTRACT
More informationPERFORMANCE OF PHOTODIGM S DBR SEMICONDUCTOR LASERS FOR PICOSECOND AND NANOSECOND PULSING APPLICATIONS
PERFORMANCE OF PHOTODIGM S DBR SEMICONDUCTOR LASERS FOR PICOSECOND AND NANOSECOND PULSING APPLICATIONS By Jason O Daniel, Ph.D. TABLE OF CONTENTS 1. Introduction...1 2. Pulse Measurements for Pulse Widths
More informationNarrow line diode laser stacks for DPAL pumping
Narrow line diode laser stacks for DPAL pumping Tobias Koenning David Irwin, Dean Stapleton, Rajiv Pandey, Tina Guiney, Steve Patterson DILAS Diode Laser Inc. Joerg Neukum Outline Company overview Standard
More informationIt s Our Business to be EXACT
671 LASER WAVELENGTH METER It s Our Business to be EXACT For laser applications such as high-resolution laser spectroscopy, photo-chemistry, cooling/trapping, and optical remote sensing, wavelength information
More informationDIODE lasers have some very unique qualities which have
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 17, NO. 1, JANUARY 2009 161 Identification and Control of a Grating-Stabilized External-Cavity Diode Laser W. Weyerman, Student Member, IEEE, B. Neyenhuis,
More informationFP-II / Master Laboratory. Optical Pumping
. Institut für Mathematik und Physik Albert-Ludwigs-Universität Freiburg im Breisgau Feb. 2016 I Contents 1 Introduction 1 2 Experimental Setup 1 3 Measurement Procedures 3 3.1 Characterisation of the
More informationTHIS IS A NEW SPECIFICATION
THIS IS A NEW SPECIFICATION ADVANCED SUBSIDIARY GCE PHYSICS A Electrons, Waves and Photons G482 *OCE/23017* Candidates answer on the Question Paper OCR Supplied Materials: Data, Formulae and Relationships
More informationThursday 9 June 2016 Afternoon
Oxford Cambridge and RSA Thursday 9 June 2016 Afternoon AS GCE PHYSICS A G482/01 Electrons, Waves and Photons *1164935362* Candidates answer on the Question Paper. OCR supplied materials: Data, Formulae
More informationHighly Reliable 40-mW 25-GHz 20-ch Thermally Tunable DFB Laser Module, Integrated with Wavelength Monitor
Highly Reliable 4-mW 2-GHz 2-ch Thermally Tunable DFB Laser Module, Integrated with Wavelength Monitor by Tatsuya Kimoto *, Tatsushi Shinagawa *, Toshikazu Mukaihara *, Hideyuki Nasu *, Shuichi Tamura
More informationThe equipment used share any common features regardless of the! being measured. Electronic detection was not always available.
The equipment used share any common features regardless of the! being measured. Each will have a light source sample cell! selector We ll now look at various equipment types. Electronic detection was not
More informationChemistry Instrumental Analysis Lecture 10. Chem 4631
Chemistry 4631 Instrumental Analysis Lecture 10 Types of Instrumentation Single beam Double beam in space Double beam in time Multichannel Speciality Types of Instrumentation Single beam Requires stable
More informationWavelength Stabilization of HPDL Array Fast-Axis Collimation Optic with integrated VHG
Wavelength Stabilization of HPDL Array Fast-Axis Collimation Optic with integrated VHG C. Schnitzler a, S. Hambuecker a, O. Ruebenach a, V. Sinhoff a, G. Steckman b, L. West b, C. Wessling c, D. Hoffmann
More informationFirst Time User Manual
Fiber Fabry-Perot Tunable Filter FFP-TF2 First Time User Manual Micron Optics Inc. 1852 Century Place NE Atlanta, GA 30345 USA phone 404 325 0005 fax 404 325 4082 www.micronoptics.com Copyright 2009 Micron
More informationPhotoassociative Spectroscopy of Strontium Along the 1 S 0-3 P 1. Transition using a Littman/Metcalf Laser. Andrew Traverso. T.C.
Photoassociative Spectroscopy of Strontium Along the 1 S 0-3 P 1 Transition using a Littman/Metcalf Laser By Andrew Traverso Advisor: T.C. Killian Abstract We present the design and implementation of an
More informationExperiment 1: Fraunhofer Diffraction of Light by a Single Slit
Experiment 1: Fraunhofer Diffraction of Light by a Single Slit Purpose 1. To understand the theory of Fraunhofer diffraction of light at a single slit and at a circular aperture; 2. To learn how to measure
More informationPound-Drever-Hall Locking of a Chip External Cavity Laser to a High-Finesse Cavity Using Vescent Photonics Lasers & Locking Electronics
of a Chip External Cavity Laser to a High-Finesse Cavity Using Vescent Photonics Lasers & Locking Electronics 1. Introduction A Pound-Drever-Hall (PDH) lock 1 of a laser was performed as a precursor to
More informationFirst and second order systems. Part 1: First order systems: RC low pass filter and Thermopile. Goals: Department of Physics
slide 1 Part 1: First order systems: RC low pass filter and Thermopile Goals: Understand the behavior and how to characterize first order measurement systems Learn how to operate: function generator, oscilloscope,
More informationA frequency stabilization method for diode lasers utilizing low-field Faraday polarimetry
REVIEW OF SCIENTIFIC INSTRUMENTS 76, 093108 2005 A frequency stabilization method for diode lasers utilizing low-field Faraday polarimetry J. A. Kerckhoff, C. D. Bruzewicz, R. Uhl, a and P. K. Majumder
More informationPh 3455 The Photoelectric Effect
Ph 3455 The Photoelectric Effect Required background reading Tipler, Llewellyn, section 3-3 Prelab Questions 1. In this experiment you will be using a mercury lamp as the source of photons. At the yellow
More informationNd:YSO resonator array Transmission spectrum (a. u.) Supplementary Figure 1. An array of nano-beam resonators fabricated in Nd:YSO.
a Nd:YSO resonator array µm Transmission spectrum (a. u.) b 4 F3/2-4I9/2 25 2 5 5 875 88 λ(nm) 885 Supplementary Figure. An array of nano-beam resonators fabricated in Nd:YSO. (a) Scanning electron microscope
More informationDESIGN OF COMPACT PULSED 4 MIRROR LASER WIRE SYSTEM FOR QUICK MEASUREMENT OF ELECTRON BEAM PROFILE
1 DESIGN OF COMPACT PULSED 4 MIRROR LASER WIRE SYSTEM FOR QUICK MEASUREMENT OF ELECTRON BEAM PROFILE PRESENTED BY- ARPIT RAWANKAR THE GRADUATE UNIVERSITY FOR ADVANCED STUDIES, HAYAMA 2 INDEX 1. Concept
More informationTwo-Mode Frequency Stabilization of an Internal-Mirror 612 nm He-Ne Laser
Proc. Natl. Sci. Counc. ROC(A) Vol. 24, No. 4, 2000. pp. 274-278 Two-Mode Frequency Stabilization of an Internal-Mirror 612 nm He-Ne Laser TONG-LONG HUANG *,**, YI-SHI CHEN *, JOW-TSONG SHY *,, AND HAI-PEI
More informationHow-to guide. Working with a pre-assembled THz system
How-to guide 15/06/2016 1 Table of contents 0. Preparation / Basics...3 1. Input beam adjustment...4 2. Working with free space antennas...5 3. Working with fiber-coupled antennas...6 4. Contact details...8
More informationMeasurement of the Speed of Light in Air
(revised, 2/27/01) Measurement of the Speed of Light in Air Advanced Laboratory, Physics 407 University of Wisconsin Madison, WI 53706 Abstract The speed of light is determined from a time of flight measurement
More informationSupplementary Materials for
advances.sciencemag.org/cgi/content/full/2/4/e1501489/dc1 Supplementary Materials for A broadband chip-scale optical frequency synthesizer at 2.7 10 16 relative uncertainty Shu-Wei Huang, Jinghui Yang,
More informationDoppler-free Fourier transform spectroscopy
Doppler-free Fourier transform spectroscopy Samuel A. Meek, 1 Arthur Hipke, 1,2 Guy Guelachvili, 3 Theodor W. Hänsch 1,2 and Nathalie Picqué 1,2,3* 1. Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße
More informationChapter 1 Introduction
Chapter 1 Introduction 1-1 Preface Telecommunication lasers have evolved substantially since the introduction of the early AlGaAs-based semiconductor lasers in the late 1970s suitable for transmitting
More informationExternal-Cavity Tapered Semiconductor Ring Lasers
External-Cavity Tapered Semiconductor Ring Lasers Frank Demaria Laser operation of a tapered semiconductor amplifier in a ring-oscillator configuration is presented. In first experiments, 1.75 W time-average
More informationHigh power single frequency 780nm laser source generated from frequency doubling of a seeded fiber amplifier in a cascade of PPLN crystals
High power single frequency 780nm laser source generated from frequency doubling of a seeded fiber amplifier in a cascade of PPLN crystals R. J. Thompson, M. Tu, D. C. Aveline, N. Lundblad, L. Maleki Jet
More informationCarrier frequency modulation of an acousto-optic modulator for laser stabilization
Vol 25, No. 11 29 May 2017 OPTICS EXPRESS 12830 Carrier frequency modulation of an acousto-optic modulator for laser stabilization M ATTHEW A LDOUS, J ONATHAN W OODS, A NDREI D RAGOMIR, R ITAYAN R OY,
More informationPHY 451: Advanced Laboratory Manual for Diode Laser Spectroscopy. Derek Neben, Lennart Dabelow
PHY 451: Advanced Laboratory Manual for Diode Laser Spectroscopy Derek Neben, Lennart Dabelow Department of Physics & Astronomy Michigan State University East Lansing, MI 48824 Motivation The general idea
More informationSimple method for frequency locking of an extended-cavity diode laser
Simple method for frequency locking of an extended-cavity diode laser Wenge Yang, Amitabh Joshi, Hai Wang, and Min Xiao We have developed an extended-cavity tunable diode laser system that has a small
More informationFrequency evaluation of collimated blue light generated by wave mixing in Rb vapour
Frequency evaluation of collimated blue light generated by wave mixing in Rb vapour Alexander Akulshin 1, Christopher Perrella 2, Gar-Wing Truong 2, Russell McLean 1 and Andre Luiten 2,3 1 Centre for Atom
More informationA novel tunable diode laser using volume holographic gratings
A novel tunable diode laser using volume holographic gratings Christophe Moser *, Lawrence Ho and Frank Havermeyer Ondax, Inc. 85 E. Duarte Road, Monrovia, CA 9116, USA ABSTRACT We have developed a self-aligned
More informationComponents of Optical Instruments
Components of Optical Instruments General Design of Optical Instruments Sources of Radiation Wavelength Selectors (Filters, Monochromators, Interferometers) Sample Containers Radiation Transducers (Detectors)
More informationDuffey, T. P.; Kammen, D; Schawlow, A. L.; Svanberg, Sune; Xia, H.-R; Xiao, G.-G; Yan, G.Y
Laser spectroscopy using beam-overlap modulation Duffey, T. P.; Kammen, D; Schawlow, A. L.; Svanberg, Sune; Xia, H.-R; Xiao, G.-G; Yan, G.Y Published in: Optics Letters DOI: 10.1364/OL.10.000597 Published:
More informationDetailed Scientific Barrier Filter Discussion
Detailed Scientific Barrier Filter Discussion Copyright 2017 Lynn Miner INTRODUCTION In this paper, we will discuss the differences in various barrier filters from a number of manufacturers. The purpose
More informationInterferometer signal detection system for the VIRGO experiment. VIRGO collaboration
Interferometer signal detection system for the VIRGO experiment VIRGO collaboration presented by Raffaele Flaminio L.A.P.P., Chemin de Bellevue, Annecy-le-Vieux F-74941, France Abstract VIRGO is a laser
More informationMode analysis of Oxide-Confined VCSELs using near-far field approaches
Annual report 998, Dept. of Optoelectronics, University of Ulm Mode analysis of Oxide-Confined VCSELs using near-far field approaches Safwat William Zaki Mahmoud We analyze the transverse mode structure
More informationConcepts for High Power Laser Diode Systems
Concepts for High Power Laser Diode Systems 1. Introduction High power laser diode systems is a new development within the field of laser diode systems. Pioneer of such laser systems was SDL, Inc. which
More informationExternal Cavity Diode Laser for Ultra-cold Atom Experiments
External Cavity Diode Laser for Ultra-cold Atom Experiments A thesis submitted in partial fulfillment of the requirement for the degree of Bachelor of Science with Honors in Physics from the College of
More informationFrequency Stabilization of Diode Lasers for Ion Interferometry. Jarom S. Jackson
Frequency Stabilization of Diode Lasers for Ion Interferometry Jarom S. Jackson A senior thesis submitted to the faculty of Brigham Young University in partial fulfillment of the requirements for the degree
More information