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Space-Qualified Pulsed DPSS-UV Laser for Martian Subsurface Exploration

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  • Space-Qualified Pulsed DPSS-UV Laser for Martian Subsurface Exploration
A. Büttner, M. Ernst, M. Hunnekuhl, R. Kalms, L. Willemsen, P. Weßels, D. Kracht, J. Neumann, the MOMA laser team
Space-Qualified Pulsed DPSS-UV Laser for Martian Subsurface Exploration
Proc. Conference on Lasers and the Electro-Optics Europe & European Quantum Electronics Conference (CLEO®/Europe-EQEC) , ca_4_5 (2019)
Publication type: Journal Article (reviewed)

Abstract

Within the context of the ESA/Roscosmos ExoMars 2020 mission a pulsed diode-pumped solid-state (DPSS) UV laser has been developed. Over a period of more than 12 years several design studies and qualification campaigns have been performed as well as different lab setups and prototype model have been built. The laser design has undergone various iterations and adaptions to changing performance requirements. All these efforts finally led to the flight model design of the first 266 nm laser for a space application. The compact but powerful UV laser, emitting 1.5 ns short pulses with an energy tunable between 13 µJ and 130 µJ, is used as an excitation source within the Mars Organic Molecule Analyzer (MOMA) instrument onboard the ExoMars rover. A combination of a gas chromatograph and a mass spectrometer is employed to seek for signs of past or present life on Mars. Two different modes of operation allow a detailed analysis of the molecular, primarily organic, composition of samples acquired by the drill unit of the rover [1]. Irradiation of these samples with intense UV pulses enables efficient laser desorption of their constituents into the gas phase. The produced ions are then sorted according to their mass-to-charge ratio by the mass spectrometer and analysed regarding any biosignatures.

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      • Photonic Materials Group
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      • Fiber Optics Group
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      • Solid-State Lasers Group
      • Ultrafast Photonics Group
    • Industrial and Biomedical Optics
      • Biophotonics Group
      • Food and Farming Group
    • Production and Systems
      • Additive Manufacturing – Polymers and Multi-Materials Group
      • Glass Group
      • Composites Group
      • Laser Micromachining Group
    • Materials and Processes
      • Additive Manufacturing - Metals Group
      • Joining and Cutting of Metals Group
      • Machines and Controls Group
      • Underwater Technology Group
      • Safety Technology Group
    • Services
  • BUSINESS AREAS
    • Additive Manufacturing
    • Medical Technology
    • Space Technology
  • SERVICES
    • Manufacturing processes and materials processing
      • Laser processing of composite materials
      • Laser processing of metals
      • Additive Manufacturing
      • Laser-based glass processing
      • Laser processing of organic materials
    • Optical components
      • Coating and thin-film technology
      • Characterization
    • Analysis techniques
      • Sample preparation
      • Analysis methods
    • Laser development
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