J-P. Bibring N. Thomas F. Westall M. Berthé V. Leroi on behalf of the entire MicrOmega team

1. MicrOmega / ExoMars J-P. Bibring N. Thomas F. Westall M. Berthé V. Leroi on behalf of the entire MicrOmega team Phyllo workshop, Paris, October22, 2008

2. MicrOmega / ExoMars MicrOmega is a set of two microscopes (VIS and IR) designed to analyze the samples prior to and after having been processed, to ●characterize in a purely non destructive manner their structure, morphology and composition (mineralogical, molecular) at a microscopic scale, and ●enable the selection of phases of interest for their further analyses. Phyllo workshop, Paris, October22, 2008

3. MicrOmega / ExoMars Amongst the goals: ●to identify, at a grain scale, small carbonates within phyllosilicates, fully characterized, to derive the pCO2 as a record of the environment at the time water was liquid at the Mars surface; ●to identify potential C-rich phases coupled to these phases, to be further analyzed by other investigations. Phyllo workshop, Paris, October22, 2008

4. MicrOmega / ExoMars MicrOmega / VIS will observe the preprocessed (drilled) core samples, with the molecular complement provided by Raman; MicrOmega / IR will image and characterize the processed (crushed) samples, in conjunction with XRD and MOMA. Phyllo workshop, Paris, October22, 2008

5. MicrOmega / V MicrOmega / V Raman Raman drilled core sample

6. Current Baseline MicrOmega / V Raman Raman MicrOmega / V Top view Front view

7. MicrOmega / VIS

8. MicrOmega / VIS 1. 2k x 2k CCD, 4 µm spatial sampling 2.12 color LEDs 3. White LEDs + polarizers

9. Top view Front view MicrOmega / IR

10. MicrOmega / IR MicrOmega / IR

11. MicrOmega / IR white source AOTF IR monochromatic sample

12. MicrOmega / IR white source AOTF IR LED visible sources monochromatic monochromatic sample

13. MicrOmega / IR Detector assembly with TEC white source AOTF IR LED visible sources Imaging optics monochromatic monochromatic sample

14. MicrOmega / IR Detector assembly with TEC white source MicrOmega / IR AOTF IR LED visible sources Imaging optics monochromatic monochromatic sample

15. MicrOmega / IR white source AOTF IR monochromatic sample

16. MicrOmega IR, AOTF For a given RF frequency, the sample is illuminated with a monochromatic light. By scanning the frequency, one builds a 3 D (x,y,λ) hyperspectral image cube white source AOTF IR monochromatic sample

17. MicrOmega IR, AOTF For a given RF frequency, the sample is illuminated with a monochromatic light. By scanning the frequency, one builds a 3 D (x,y,λ) hyperspectral image cube

18. MicrOmega IR, AOTF RF ON : only one optical wavelength is transmitted AOTF Output spectra at various RF settings All other optical wavelength are trapped in the crystal

19. The focal play is an integrated hermetic package including a 256x256 IR (HgCdTe) matrix mounted onto a dedicated TEC to provide its operational temperature (~190 K) Detector assembly with TEC white source AOTF IR LED visible sources Imaging optics monochromatic monochromatic sample

20. MicrOmega Breadboard IR detector • Focal plane: • 256 x 320 pixels: 30 µm x 30 µm • Responsivity: 0.8 µm à 2.6 µm • Pixel capacity > 1.3 106 e- • 4 Readout lines • Up to 30 MHz out freq.

21. MicrOmega IRbreadboard cold finger detector electronics illumination sample

22. Radiator Detector AOTF Baffle Imaging Optics Sample MicrOmega IRbreadboard

23. MicrOmega IR: smectite sample smectite sample size = 6 x 7.5 mm² MicrOmega spectrum bining 3X3 (69 x 69 µm2)

24. MicrOmega spectrum bining 3X3 (69 x 69 µm2) lab (LPG) spectrum 4 cm² size sample

25. Nontronite + Kieserite mixture Sample NONTRONITE KIESERITE MicrOmega Spectrum binning 3X3 USGS Reference

26. MicrOmega / ExoMars MicrOmega is ready to pass (in two weeks) its PDR successfully, and could have been delivered for a 2013 launch. The unfortunate shift decided last week by ESA to be endorsed by the C/MIN late November might lead to a consolidated mission, towards a robust partnership in the upcoming joined missions. Phyllo workshop, Paris, October22, 2008