Korea Joo-Hiuk Son, inexus, Inc. Tel: Fax: Web:

Transcription

1 CONTACT Main Office Renee Isley Tel: (541) Fax: (541) Web: Mail: 858 West Park Street, Eugene, OR 97401, USA International Distributors France Patrice Benoit, Optoprim Tel: 33 (0) Fax: 33 (0) Web: All of Europe (Excluding France, Ireland & UK) Wolfgang Gruber, SEMIC RF WG@semic.de Tel: (0 89) Fax: (0 89) Web: United Kingdom, Ireland & India Robbie Thomas, Edinburgh Instruments robbie.thomas@edinst.com Tel: Fax: Web: Korea Joo-Hiuk Son, inexus, Inc. net@4science.net Tel: Fax: Web: Taiwan Alan Tuan, Collimage International AlanTuan@collimage.com.tw Tel: Fax: Web: Japan Sergey Krayushkin, Tokyo Instruments, Inc. s_krayushkin@mail.tokyoinst.co.jp Tel: +81(0) Fax: +81(0) Web: China Henry Wu, Titan Electro-Optics, Co. henry-wu@teo.com.cn Tel: (010) Web: China Joe Zhang, Pinnacle International Limited qjzhang@pinnacleintl.com Tel: Fax: Web: Singapore, Malaysia,Thailand, Vietnam, Indonesia and Philippines Kim Eng Oh, Zugo Photonics Private Ltd enquiry@zugophotonics.com Tel: Fax: Web: MICROTECH instruments, inc.

2 MICROTECH instruments, inc. THZ DETECTORS, GENERATORS, SPECTROMETERS & ACCESSORIES Table of Contents: QS1 Compact THz Generators...pg 1 QS2 Compact THz Generators...pg 3 Backward Wave Oscillators...pg 5 Power Supplies and Magnetic Systems...pg 9 Pyroelectric Detectors...pg 14 Golay Cells...pg 15 THz Spectrometers...pg 16 Wire Grid Polarizers & Holders...pg 18 THz Lenses & Windows...pg 21 THz Attenuator Set...pg 23 THz Filters...pg 25

3 QS1 COMPACT THZ GENERATORS Product description: These generators are based on high power, low frequency Backward Wave Oscillators (BWOs) combined with frequency multipliers. For example, Qs1-370-T combines a BWO operating in GHz range with a frequency tripler, extending operating frequency to GHz range. Output power of these devices decreases from mw in GHz range to mw in GHz range, but it remains well above detection limits of sensitive THz detectors. The frequency multipliers are very compact devices based on Schottky diodes. The multipliers are attached to BWO output via impedance matched waveguide adapters, enabling easy transition from one spectral range to another. Without Frequency tripler: QS1-260-T Tunable Across: and GHz With Frequency tripler: pg 1

4 Product specifications: MODEL TUNING RANGE OUTPUT POWER QS1-260-T QS1-370-T GHz and GHz GHz and GHz 3-30 mw and mw 1-10 mw and mw Operation of QS1-260-T and QS1-370-T requires VR-6M or VR-6MU high voltage power supplies, MS-0.6, MS-0.7 or MS-1.2 magnetic systems and BWO cooling system (see page 9). 20 Without Frequency tripler: With Frequency tripler: QS1-370-T Tunable Across: and GHz pg 2

5 PRODUCT QS2 COMPACT NAME THZ GENERATORS Product description: These generators are based on a QS2-180 BWO combined with frequency multipliers. While QS2-180 is only tunable in range GHz, combination of QS2-180 with frequency multipliers extends the operating spectral range to 1.5 THz. The frequency multipliers are very compact (1 x0.5 x0.5 ) solid-state electronic devices that are attached directly on the QS2-180 output waveguide. Power conversion efficiency of the multipliers varies from 0.1 to 20 percent, depending on the frequency range. Starting with up to 100 mw of power generated by QS2-180, output power of the multiplied source ranges from a few μw to 20 mw. Operation of QS2 compact THz generators requires VR-3M high voltage power supply (see page 9). Product specifications: MODEL TUNING RANGE OUTPUT POWER QS2-350 QS2 - T GHz GHz GHz GHz QS2-500 includes QS2-350 and QS2-T configurations. QS2 - DT GHz GHz GHz mw 1-20 mw QS includes QS2-350, Qs2-T and QS2-DT configurations. QS2 - TT GHz GHz GHz GHz GHz GHz GHz GHz GHz GHz GHz 3 QS2-350 Tunable Across: GHz & GHz pg 3

6 QS2 COMPACT THZ GENERATORS TYPICAL PRODUCT SPECTRA NAME 2 1 QS2-T Tunable Across: GHz & GHz QS2-DT Tunable Across: GHz, GHz & GHz QS2-TT Tunable Across: GHz, GHz & GHz pg 4

7 PRODUCT BACKWARD NAME WAVE OSCILLATORS Backward Wave Oscillators (BWOs): High power: mw Narrow spectral line-width: 1-10 MHz Wide spectral range: THz BWOs are electro-vacuum diodes, where THz emission is generated by electrons decelerating in a periodic electric field. BWO emission wavelength is tuned by a voltage applied to one of the electrodes (cathode). Tables below show tuning ranges for a number of different BWOs. BWO MODEL # QS ov85 QS ov84 QS ov83 QS ov82 Frequency range, THz Output power, mw Cathode Voltage, kv BWO MODEL # QS1-900 ov81 QS1-710 ov80 QS1-370 ov30 QS1-260 ov24 Frequency range, GHz Output power, mw Cathode Voltage, kv BWO MODEL # QS2-180 ov86 QS3-120 ov71 QS4-80 ov70 QS6-55 ov69 Frequency range, GHz Output power, mw Cathode Voltage, kv Operation of QS1 BWOs requires: - a magnetic system (MS 1.2 or MS 1.3) - a high voltage power supply (VR-6M or VR-6M4) - a BWO cooling system Operation of QS2, QS3, QS4 and QS6 BWOs requires VR-3M. More information on these products can be found on pages pg 5

8 THZ GENERATORS TYPICAL PRODUCT SPECTRA NAME QS (OV-84) Tunable Across: THz QS (OV-83) Tunable Across: THz QS (OV-82) Tunable Across: THz pg 6

9 PRODUCT THZ GENERATORS NAME - TYPICAL SPECTRA 20 QS1-370 (OV-30) Tunable Across: GHz QS1-260 (OV-24) Tunable Across: GHz QS2-180 Tunable Across: GHz pg 7

10 THZ GENERATORS - TYPICAL PRODUCT SPECTRA NAME QS3-120 (OV-71) Tunable Across: GHz QS4-80 (OV-70) Tunable Across: GHz QS6-55 (OV-69) Tunable Across: GHz pg 8

11 PRODUCT BWO POWER NAME SUPPLIES AND MAGNETS BWO Power Supplies and Magnets Operation of BWO-based THz sources requires a high voltage power supply (e.g. VR-6MU) and a magnetic system (e.g. MS-1.2) that houses a BWO tube. High Voltage Power Supplies: VR-series power supplies provide for highly stabilized cathode voltage ranging from 0 to 6000 V, as well as BWO grid and heater voltages. The software package (THz generator) or Lab View Driver combined with digital-to-analog converter (DAC-16) enable computer control of the power supplies via RS-232, GPIB or USB interfaces. MODEL # MAX VOLTAGE APPLICATION VR-3M 3000 V Low Frequency BWOs ( 180 GHz) VR-6M 6000 V High Frequency BWOs ( 180 GHz) VR-6MU 6000 V All types of BWOs Magnetic Systems: The MS-X.X magnetic systems are designed to house high frequency BWO s operating in the spectral range THz. The systems include a permanent magnet with inputs for BWO electrical connections and the water cooling system. The MS-1.2 and MS-1.3 models are also equipped with a 2-axis mechanical rotation stage for centering the BWO in the magnetic field. MODEL Magnetic Field (Tesla) Size (inches) Weight (lbs) Designed for MS x 7 x 7 30 QS1-260 MS x 9 x 9 60 QS1-370 MS x 12 x all models MS x 12 x all models BWO cooling system: BWOs operating at frequencies above 180 GHz require water cooling. While the BWO dissipates only 300 W of heat, the cooling system has to provide for at least 40 psi of water pressure, due to very narrow tubing inside the BWO. pg 9

12 LAB VIEW DRIVERS FOR THE BWO POWER PRODUCT SUPPLIES NAME Lab View Drivers are designed to store BWO calibration data and set or scan the BWO output frequency by controlling voltage of VR-3M, VR-6M and VR-6MU power supplies. pg 10

13 PRODUCT THZ POWER GENERATORS SUPPLIES NAME - TYPICAL SPECTRA Product description: Our Power Supplies are designed to power tunable monochromatic quasi-optical sources of millimeter or terahertz (VR-6M, VR-6MU) radiation based on Backward Wave Oscillators (BWO s). The BWO power supplies are optimized for low noise, regulated high voltage output. MODEL -> VR-3M VR-6M VR-6MU Output Voltage: Output Voltage Polarity: CATHODE POWER SUPPLY V V V negative (relative to a grounded BWO anode) Ripple and Noise: less than 10mV not more than 40 mv (peak to peak) Output Voltage Slew Rate: 1 V/μs 1 V/μs 1 V/μs Modulation: triangle form 2.5 khz, 0-50 V (peak to peak) GRID POWER SUPPLY: Voltage DC: 200V N/A 200V Maximum Current: 7mA N/A 7mA Automatically switched off: if the cathode voltage is less than 200V N/A HEATER POWER SUPPLY: Maximum DC Current: 2.75A, regulated A AC, 360Hz (sinusoidal) not more than 40 mv (peak to peak) if the cathode voltage is less than 200V A AC, 360Hz (sinusoidal) Maximum Voltage: 1.4V 0...8V AC (eff.) 0...8V AC (eff.) Automatically switched off: if the cathode voltage is less than 200V No INPUT POWER REQUIREMENTS Voltage AC: 110 V or 220 V +/-5% Power Consumption: 150 W 500 W (typical) 500 W (typical) MECHANICAL SPECIFICATIONS Dimensions: 6 x 15 x x 20 x x 20 x 20 Weight: 15 kg 29 kg 29 kg No pg 11

14 MAGNETIC PRODUCT SYSTEMS NAME Product description: The MS-X.X magnetic systems are designed to house high frequency BWO s operating in the spectral range THz. The systems include a permanent magnet with inputs for BWO electrical connections and the water cooling system. The MS-1.2 and MS-1.3 models are also equipped with a 2-axis mechanical rotation stage for centering the BWO on the magnetic field. Product Specifications: MODEL Magnetic Field (Tesla) Size (inches) Weight (lbs) Designed for MS x 7 x 7 30 QS1-260 MS x 9 x 9 60 QS1-370 MS x 12 x all models MS x 12 x all models Additional views: PLUGGABLE WATER LINES BWO OUTPUT FRONT VIEW (OPEN FRONT PANEL) pg 12

15 PRODUCT MAGNETIC NAME SYSTEMS PLUGGABLE ELECTRICAL CONNECTER TOP VIEW (OPEN TOP PANEL) 2-AXIS MECHANICAL ROTATION STAGE HIGH VOLTAGE CONNECTER WATER IN/OUT BACK VIEW (OPEN BACK PANEL) pg 13

16 PYROELECTRIC PRODUCT DETECTORS NAME Product description: The pyroelectric detector based on LiTa03 crystal, is designed for registration of modulated electromagnetic radiation in the millimeter and sub-millimeter wavelength range. At square wave modulation of radiation, the saw-tooth signal voltage from the detector is proportional to the intensity of radiation. A black filter is mounted on the detector input to prevent parasitic illumination in visible and infrared regions. The detector is equipped with a standard BNC connector. Technical Specifications: PARAMETER VALUE Operating spectral range, THz Responsitivity V/W 1000 Dynamic Range 1 μw - 10 mw Optimal modulation frequency, Hz 5-30 Noise level, mv 1.0 Power supply voltage (2 AA batteries), V 2 x 1.5 Power supply current, mv 0.14 Operating battery lifetime, hours > 10,000 Dimensions, mm 135 x 40 x 30 Application Notes: Pyroelectric detectors operate over a wide spectral range of THz (with a black filter) or up to near-ir (without the filter). These detectors provide for lower responsivity than Golay Cells, but have a faster response time. Pyroelectric detectors have a pair of AA batteries inside to provide power. These are accessed by removing the top cover. pg 14

17 PRODUCT GOLAY CELL NAME DETECTORS Product description: Golay Cell is an opto-acoustic detector designed for operation in the spectral range THz. It is equipped with a 6 mm diameter polyethylene or diamond input window that provides for high transparency at frequencies up to 20 THz. Golay Cell includes a build-in preamplifier. Operation of a Golay Cell requires a three-unit power supply delivering the following: +15 V, -15 V and 32 ma. Performance of Golay Cells is detrimentally affected by mechanical vibrations. Addressing this problem, our Golay Cells are mounted on vibration-isolating bases. Technical Specifications: PARAMETER Responsivity at 12.5 Hz modulation, V/W VALUE v/w Sensitivity at 12.5 Hz modulation, W/Hz 1/ W/H 1/2 Maximum modulation frequency Dynamic range 50 Hz 100 nw - 1 mw Rise time, ms 25 Maximum output voltage, V 3.0 Input window diameter, mm 6 Dimensions, mm 135 x 115 x 120 Operating Spectral Range: Polyethylene Window THz Operating Conditions: Operating Spectral Range: Diamond Window 20 GHz to visible * *Extra care, handling and filtering are required for Diamond Window Golay Cells. PARAMETER VALUE Value Temperature, o C +15 to +25 Pressure, Pa 8.4 x 10 4 to 10.7 x 10 4 Humidity, % Application Notes: The Golay Cell can be used to detect both CW and pulsed THz radiation. However, due to a 25 ms response time, only average power can be measured for short pulse/high repetition rate THz sources. pg 15

18 THZ SPECTROMETERS PRODUCT NAME All models can be set up for transmission, reflection and Mach-Zehnder configurations. Transmission Setup Transmission setup (shown top right) is the best method for characterization of highly transparent materials. In particular, transmisson spectra of plane parallel plates exhibit a periodic transmission pattern caused by interference (Fabry-Perot etalon fringes). Real and imaginary parts of the dielectric constant can be determined from these measurements, as the period and amplitude of the etalon fringes depend on the material refractive index and absorption, respectively. Characterization of semi-transparent materials requires a THz Mach-Zehnder inferometer, since no etalon fringes can be observed in the transmission spectra of such materials. The Mach-Zehnder setup enables measurements of a phase shift induced by the sample as a function of frequency. Combining this data with transmission spectrum, real and imaginary parts of the dielectric constant can be calculated. Reflection Setup Opaque materials characterization requires the reflection spectrometer (shown bottom right). Because the transmitted signal is too small for characterization, a system using 6-axis control is employed to measure the reflected signal. As with the transmission and phase spectrometers the index of refraction, extinction, real and imaginary parts of the dielectic function can be quickly calculated from the software theoretical fitting routine. The transmission, Mach-Zehnder and reflection spectrometers are supported by TScan Software, enabling automated data acquisition and analysis. One spectral scan takes 1-5 minutes for each of the BWO s employed in the system. Operating frequency range of the spectrometer varies with selection of BWOs. pg 16

19 PRODUCT COMPACT NAME THZ SPECTROMETERS Product description: Compact THz Spectrometers enable transmission measurements in the spectral range of 100 GHz to 1.5 THz. These systems are based on millimeter wave BWOs combined with frequency multipliers and broadband Pyroelectric Detectors or Golay Cells. Key features include: Spectral range: 100 GHz THz Spectral resolution: 1-10 MHz Dynamic range: 10 4 Product specifications: MODEL TScan-180C TScan-350C TScan-500C TScan-1000C TScan-1500C OPERATING SPECTRAL RANGE GHz GHz GHz GHz GHz pg 17

20 THZ SPECTROMETERS PRODUCT NAME T-Scan Software for Spectrometer Measurement: The T-Scan software can select and calibrate the BWO, scan, collect, save and process the data for all types of spectrometer systems. One can quickly collect the data and fit the refraction, extinction, real and imaginary dielectric coefficients. Operation of T-Scan software requires the DAU (data acquisition unit), optical chopper and pyroelectric detector or Golay cell. pg 18

21 PRODUCT WIRE GRID NAME POLARIZERS & HOLDERS Product description: These polarizers are made of 10 μm or 15 μm tungsten wire wound on a circular frame with spacing ranging from 25 μm to 200 μm. Operating frequency range-up to 3 THz (see transmission and reflection spectra on the next page). POLARIZER MODEL WIRE DIAMETER/ WIRE SPACING (μm) G25 x 10-S 10 / / 50 G30 x 10-S 10 / / 50 G30 X 10 L 10 / / 98 G45 x 10-S 10 / / 50 G45 x 10-L 10 / / 98 G50 x 20-S 20 / / 50 G50 x 20-L 20 / / 98 G60 x 15-S 15 / / 50 G60 x 15-L 15 / / 98 G80 x 15-S 15 / / 50 G80 x 15-L 15 / / 98 G100 x 20-S 20 / / 50 G100 x 20-L 20 / / 98 G200 x 20-S 20 / / 50 G200 x 20-L 20 / / 98 CLEAR APERTURE / EXTERNAL DIAMETER (mm) Wire Grid Polarizer Holders: We carry 2 types of rotating holders for the wire grid polarizers. Model RH1 is designed for 98 mm diameter polarizers, and enables a 360 rotation. Model RH2 is designed for 98 mm diameter polarizers, and enables 2- axis adjustments and 360 rotation. pg 19

22 WIRE GRID POLARIZERS PRODUCT & HOLDERS NAME Transmission spectra of radiation polarized perpendicular and parallel to the wires TRANSMISSION E wires G200 G100 G30 G FREQUENCY (GHz) 0.1 E II wires G60 x 15 G45 x 10 G50 x G30 x 10 G200 x 20 G25 x 10 Transmission G100 x G80 x pg 20

23 PRODUCT THZ FILTERS LENSES NAME & WINDOWS Polished Tsurupica Lenses focus THz and visible light Tsurupica is highly transparent in THz and visible spectral ranges (see transmission spectra on the next page). Refractive index of Tsurupica is the same for THz and visible light (n=1.52). MODEL LENS TYPE EXTERNAL DIAMETER/ CLEAR APERTURE PTL mm-AS Plano-convex, aspheric 1.5 / 30 mm 50 mm FOCAL LENGTH PTL mm-AS Plano-convex, aspheric 1.5 / 30 mm 100 mm PTL-2-50mm-BC Bi-convex, spherical 2 / 45 mm 50 mm PTL-2-100mm-BC Bi-convex, spherical 2 / 45 mm 100 mm PTL-2-180mm Plano-convex, spherical 2 / 45 mm 180 mm PTL-1.5 -XXXmm Plano-convex, spherical 1.5 / 30 mm Any > 30 mm PTL-2 -XXXmm Plano-convex, spherical 2 / 45 mm Any > 50 mm Polyethylene Lenses Offer the best performance at frequencies below 1 THz and above 7 THz (see transmission spectra on the next page). Polyethylene is not transparent in visible and near-ir spectral ranges, so that the lenses can be used to block light. MODEL LENS TYPE HOLDER DIAMETER/ CLEAR APERTURE PL-2-60mm Bi-convex, spherical 2.75 / 2 60 mm FOCAL LENGTH PL-2-100mm Bi-convex, spherical 2.75 / mm Polished Tsurupica Windows Apart from high transparency in THz and visible spectral ranges, Tsurupica is also very strong mechanically. Thin Tsurupica windows can be used in cryostats, gas cells or any other systems operating at high pressure. MODEL PTW-1-3mm PTW-1.5-4mm PTW-2-4mm DIAMETER/THICKNESS 1 (25.4 mm) / 3 mm 1.5 (38.1 mm) / 4 mm 2 (50 mm) / 4 mm pg 21

24 THZ LENSES PRODUCT & THZ WINDOWS FILTERS NAME Transmission spectra of Tsurupica and Polyethylene in THz spectral range Tsurupica (2 mm) Polyethylene (2 mm) Spectra include reflection loss Transmission (%) Frequency (THz) Transmission spectrum of Tsurupica in the visible spectral range TSURUPICA (3 mm slab) 60 TRANSMISSION (%) WAVELENGTH (nm) pg 22

25 THZ ATTENUATOR SET PRODUCT THZ SPECTROMETERS NAME Product description: Dui esed magnisl dui eugait, ver sum dolore tionum iliquip ea facing ero odolore dolore veriurem zzriliq uatuerc iduipis num at. Ut adiam venibh esto conse eniam velit, con velit, volum in utat nonsed The attenuator ex erosto set ex ea is ideal con vullam for applications quating er amet, where velismod the terahertz con ullan signal ea feumsan needs henisl to be deleniate attenuated faccum to prevent aut lutat detector del et, saturation. se dolobore feum num do consectem deliquisi tat ut ad del iuscipissi. Additionally; the broad, flat transmission spectrum shown on page 24 makes this set good for both broad spectrum Acin henim zrit alit THz praesenis and BWO nosto scanning applications. Whether the source Ed is a ea photoconductive auguerat, quat, conulluptat. antenna, Erostrud free electron mod te laser, dolor or autpat. Non backwards veniat nis wave am volesequis oscillator alis this nosto attenuator odigniamcon set with verit its lut lum iusci sputter el ing coated euis dio thin odolore film elements raesto consecte is capable commy of nulputatem attenuating venibh the signal exer uniformly. irilis doloreet alit wisis dolore facipsummy nim vel elit laore vel utpat venim irit, qui tate voloreetue dolorper iureet praesequis The set consists do dolent of 4 ad thin erating film ea attenuators consecte et mounted laore tem for ipit ulla faccum easy and dio rapid dolutem deployment. velit autem The et, quat. external Acin diameter henim zzrit of alit the praesenis attenuators nosto are eum 68mm, veraessed and the dolutat clear ionsed aperture mincidu is 60mm. isciduisl eros These am attenuators dolor autat, sum may nisciduiscil be used as ullum single augiat. attenuators or in combination as needed giving additional flexibility and range. The four attenuators are 30%, 10%, 3%, and 1% transmission. The attenuation combinations possible are given in the table below. ATTENUATOR TRANSMISSION COMBINATIONS (%) SINGLE T DOUBLE T TRIPLE T ALL By using combinations of the attenuators the transmission levels shown above can be attained. pg 23

26 THZ ATTENUATOR SET COMPACT THZ PRODUCT GENERATORS NAME Dui esed magnisl dui eugait, ver sum dolore tionum iliquip ea facing ero odolore dolore veriurem zzriliq uatuerc iduipis num at. Ut adiam venibh esto conse eniam velit, con velit, volum in utat nonsed ex erosto ex ea con vullam quating er amet, velismod te con ullan ea feumsan henisl deleniate faccum aut lutat del et, se dolobore feum num do consectem deliquisi tat ut ad del iuscipissi. Acin henim zrit 1alit praesenis nosto Transmission E-3 Attenuator Set Transmission Ed ea auguerat, quat, conulluptat. Erostrud mod te dolor autpat. Non veniat nis am volesequis alis nosto odigniamcon verit lut lum iusci el ing euis dio odolore raesto consecte commy nulputatem venibh exer irilis doloreet alit wisis dolore facipsummy nim vel elit laore vel utpat venim irit, qui tate voloreetue dolorper iureet praesequis do dolent ad erating ea consecte et laore tem ipit ulla faccum dio dolutem velit autem et, quat. Acin henim zzrit alit praesenis nosto eum veraessed dolutat ionsed mincidu isciduisl eros am dolor autat, sum nisciduiscil ullum augiat. 30% 10% 3% 1% 1E-4 1E-5 1E11 Frequency (Hz) 1E12 pg 24

27 PRODUCT THZ FILTERS NAME Product description: Dui esed magnisl dui eugait, ver sum dolore tionum iliquip ea facing ero odolore dolore veriurem zzriliq uatuerc iduipis num at. Our new terahertz (THz) low pass filter is constructed from Ut adiam venibh esto conse eniam velit, con velit, volum in utat a micro-structured material that blocks the visible through nonsed ex erosto ex ea con vullam quating er amet, velismod mid IR while passing THz beams. te con ullan ea feumsan henisl deleniate faccum aut lutat del et, se dolobore feum num do consectem deliquisi tat ut ad del It is an excellent filter for optical THz generation systems iuscipissi. such as time domain THz spectroscopy systems. It has optimal characteristics for use in zinc telluride based systems and for typical photo conductive switch systems as well. As can be seen in the figure below, the measured Ed ea auguerat, quat, conulluptat. Erostrud mod te dolor autpat. transmission in the 700 to 850 nm range is below.01%. Non veniat nis am volesequis alis nosto odigniamcon verit lut lum At wavelengths longer than 975 nm the transmission is iusci el ing euis dio odolore raesto consecte commy nulputatem below.1%. These measurements were done with a laser venibh exer irilis doloreet alit wisis dolore facipsummy nim vel beam spectrally filtered to the wavelength of interest from a elit laore vel utpat venim irit, qui tate voloreetue dolorper iureet super-continuum white light coherent source. praesequis do dolent ad erating ea consecte et laore tem ipit ulla Acin henim zrit alit praesenis nosto THz Low Pass faccum Filter dio Visible dolutem To velit Mid autem IR Transmission et, quat. Acin henim Spectrum zzrit alit 2.0 praesenis nosto eum veraessed dolutat ionsed mincidu isciduisl eros am dolor autat, sum nisciduiscil ullum augiat. Transmission (%) Less than.01% (Detection Threshold) Wavelength (nm) The transmission of THz waves is above 80% across the.1 to 3 THz range making this an excellent filter even for broadband THz applications. THz measurements were done up to 1 THz with our compact THz spectrometer (TScan- 1000) and with additional optical THz generation for the above 1 THz range. pg 25

28 PRODUCT THZ FILTERS NAME 1.0 Dui esed magnisl dui eugait, ver sum dolore tionum iliquip ea facing ero odolore dolore veriurem zzriliq uatuerc iduipis num at. Ut adiam venibh esto conse eniam velit, con velit, volum in utat nonsed ex erosto ex ea con vullam quating er amet, velismod te con ullan ea feumsan henisl deleniate faccum aut lutat del Terahertz Low Pass Filter THz Transmission Spectrum et, se dolobore feum num do consectem deliquisi tat ut ad del iuscipissi. Acin henim zrit alit praesenis nosto 0.9 Transmission Ed ea auguerat, quat, conulluptat. Erostrud mod te dolor autpat. Non veniat nis am volesequis alis nosto odigniamcon verit lut lum iusci el ing euis dio odolore raesto consecte commy nulputatem venibh exer irilis doloreet alit wisis dolore facipsummy nim vel elit laore vel utpat venim irit, qui tate voloreetue dolorper iureet praesequis do dolent ad erating ea consecte et laore tem ipit ulla faccum dio dolutem velit autem et, quat. Acin henim zzrit alit praesenis nosto eum veraessed dolutat ionsed mincidu isciduisl eros am dolor autat, sum nisciduiscil ullum augiat Frequency (THz) This filter is sold mounted in a 2 diameter holder as shown in the photo on the opposite page. The clear aperture of the filter is 43mm. pg 26