Optical Design - Zemax ray tracing software

Transcription

1 Optical Design - Zemax ray tracing software Detector Selection Mechanical Design Natalia Kouremeti, Julian Gröbner Ricco Soder, Pascal Schlatter, Patrik Langer Claudio Dellagiacoma Marek Smid, Geiland Porrovechio ATMOZ Workshop May 26 Azores

2 Detector Optical Design related Design Objectives for Direct Irradiance Spectrometer Retrieval of total column of Ozone Measure over the range nm with high resolution (better than.3 nm FWHM) Retrieval of other trace gases UV-Vis-NIR range (SO 2,HCHO, NO 2,O 4, H 2 O) Oversampling more than 3 pixels within the FWHM High Sensitivity & Signal to Noise Ratio in UV Stability

3 Optical Design Czerny-Turner design Optical Elements Off -Axis Parabolic Mirror FL 25mm & 3 o (4x4mm) Grating 8 lines/mm (44x44mm) Custom made Spherical Mirror FL mm (4x6mm) Entrance Slit Detector Length 6x μm mm Rotation Min Wavelength (nm) Maximum Wavelength (nm) Imaged Wavelengths (nm) linear step nm/pixel FWHM (nm) Pixels within the FWHM UV ± Vis ±.3 6. Vis (O 4 & H 2 O) to.3 7- NIR (O 2 ) to.32-5 Maximum to.7 Up to ATMOZ Workshop May 26 Azores

4 Rectangular Slit 6xμm F# Full Cone Angle 6 o Grating Position : UV Configuration nm Slit Function Slit Function.75.5 Slit Function wavelength offset (nm) Magnification :.2 to wavelength offset (nm) wavelength offset (nm) 248x x25 Detector Height (mm) wavelength (nm).5-3 Normalized Distribution ATMOZ Workshop May 26 Azores

5 Sensitivity to acceptance angle nm Slit= 6 m, FCA=6 o Slit= 6 m, FCA=8 o Slit= 6 m, FCA= o Slit= 6 m, FCA=2 o Slit= 6 m, FCA=6 o Slit= 6 m, FCA=8 o Slit= 6 m, FCA= o Slit= 6 m, FCA=2 o nm nm nm nm nm nm Slit Function nm nm nm nm Slit Function nm nm nm wavelength offset(nm) ATMOZ Workshop May 26 Azores

6 Sensitivity to acceptance angle.55.5 Slit= 6 m, FCA=6 o Slit= 6 m, FCA=8 o Slit= 6 m, FCA= o Slit= 6 m, FCA=2 o.45.4 FWHM (nm) wavelength (nm) ATMOZ Workshop May 26 Azores

7 Resolution Slit & Cone Angle FWHM (nm) Slit= 6um, FCA=6deg Slit= 6um, FCA=8deg Slit= 6um, FCA=deg Slit= 6um, FCA=2deg Slit= 7um, FCA=6deg Slit= 7um, FCA=8deg Slit= 7um, FCA=deg Slit= 7um, FCA=2deg ATMOZ Workshop May 26 Azores

8 Rectangular Slit 6xμm F# Full Cone Angle 6 o Grating Position 2: nm FWHM=.27 nm FWHM=.24 nm FWHM=.24 nm Detector Height (mm) x56 248x wavelength (nm).5-3 Normalized Distribution ATMOZ Workshop May 26 Azores

9 Rectangular Slit 6xμm F# Full Cone Angle 6 o Grating Position 3: nm FWHM=.2 nm FWHM=.24 nm FWHM=.3 nm Detector Height (mm) x56 248x wavelength (nm).5-3 Normalized Distribution ATMOZ Workshop May 26 Azores

10 Rectangular Slit 6xμm F# Full Cone Angle 6 o Grating Position 4: nm FWHM=.7 nm FWHM=.22 nm FWHM=.32 nm Detector Height (mm) x56 248x wavelength (nm).5-3 Normalized Distribution ATMOZ Workshop May 26 Azores

11 Rectangular Slit 6xμm F# Full Cone Angle 6o Maximum Grating Position: nm FWHM=.3 nm FWHM=.2 nm FWHM=.7 nm Detector Height (mm) x56 248x wavelength (nm).5-3 Normalized Distribution ATMOZ Workshop May 26 Azores

12 Detector Selection Hamamatsu Detectors Active Pixels Image Size H(mm )x V(mm) Type S x x.2 CMOS 2 S56 248x x. CCD 3 S4-7S 248x x.464 CCD 4 S4-8S x25 x 3. CCD 5 S4-9S x56 x 6.72 CCD 6 S393-24Q 24x 25.6 x 2.5 NMOS (PSR) S Q 248x 5.2 x 2.5 NMOS Board Jeti SDCM3 6bits Jeti RU6 6bits Jeti VersaPic 6bits Jeti VersaPic 6bits Jeti VersaPic 6bits PMOD-PSR 8bits Special Feature CMOS Electronic shutter One stage TEcooled One stage TEcooled One stage TEcooled ATMOZ Workshop May 26 Azores

13 Detector Selection Noise Level -EDR EDR (Bits AD Converter - Dark ) / STD of Dark o C CCD-S4-9S (248x56) -2.. o C CCD-S4-8S (248x25) -2.. o C CCD-S4-7S (248x22) o C NMOS-S39324Q 8bit + 5. Sony ILX ATMOZ Workshop May 26 Azores Integration Time (ms)

14 Mechanical Design ATMOZ Workshop May 26 Azores

15 Mechanical Design ATMOZ Workshop May 26 Azores

16 Manufacturing Progress ATMOZ Workshop May 26 Azores

17 Manufacturing Progress Painting Black Testing 2 stages CCD cooling Alignment Testing of telescope & producing final version Operational & Analysis Software ATMOZ Workshop May 26 Azores

18 The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union

19 Optical Design ATMOZ project meeting 29-3 October 25 Prague

20 .5 Dark -PSR_5 data extrapolation Thermal Dark Dark=EDARK + ThermalDark x IT.5 X: - Y: Sensor Temerature ( o C)

21 Image analysis ray table listing Field Width :.6x Millimeters Number of rays/pixel/unit intensity: 4 Optical Elements: Parabolic Mirror F# = 25, Grating Line/mm = 8, Spherical Mirror F# = Data-Zemax Gauss Fit - FWHM.248 nm.8 Slit Function wavelength (nm)

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23 Detector Selection Noise Level CCD 248x22 pixels Dark Signal = Electronic Dark + Thermal Dark (Temp) x IT Dark Signal for IT=5ms S4_VersaPic Dark Signal Measurements pixel Sensor Temperature ( o C) -2. S53-2. S53 -. S53 -. S53 -. S53. S53 2. S53 Electronic Dark (Dark at IT=ms) pixel Mean Electronic Dark Sensor Temperature ( o C) Thermal Dark (counts/ms) pixel Mean Thermal Dark (counts/ms) X: Y:.227 Sensor Temperature ( o C)

24 Detector Selection Noise Level EDR (Bits AD Converter - Dark ) / STD of Dark CCD 248x22 pixels S47S_Cooled -2.. o C,Sens=53, N=5,PreReads= o C,Sens=53, N=5,PreReads= Integration Time (ms) 9 9 PixelMean Dark Signal Integration Time (ms) PixelMean STD of Dark Signal Integration Time (ms) 9 9 PixelMean Dark Signal Sensor Temperature ( o C) PixelMean Std of Dark Signal Sensor Temperature ( o C)

25 EDR (Bits AD Converter - Dark ) / STD of Dark Detector Selection Noise Level CCD 248x56 pixels S49S_Cooled o C,Sens=57, N=5,PreReads= o C,Sens=57, N=5,PreReads= Integration Time (ms) 4 5 PixelMean Dark Signal Integration Time (ms) PixelMean STD of Dark Signal Integration Time (ms) PixelMean Dark Signal Sensor Temperature ( o C) PixelMean Std of Dark Signal Sensor Temperature ( o C) ATMOZ project meeting 29-3 October 25 Prague

26 Detector Selection Dark Signal Std of Dark Signal o C, S49S Sens=57,PreReads= pixel Dark Signal Std of Dark Signal o C,S47S Sens=53,PreReads= pixel Integration Time(ms) pixel pixel ATMOZ project meeting 29-3 October 25 Prague

27 Detector Selection o C, S49S Sens=57,PreReads= o C,Sens=55,PreReads= Dark Signal Dark Signal pixel pixel Std of Dark Signal Std of Dark Signal pixel ATMOZ project meeting 29-3 October 25 Prague pixel