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Raman Laboratory



 

 

 Raman microscope with spectrometer
zum Bild Raman microscope with spectrometer
 Cryostat which serves as a planetary simulation chamber under the Raman microscope.
zum Bild Cryostat which serves as a planetary simulation chamber under the Raman microscope.

 

The core of the laboratory is a Raman micro-spectrometer. The spectrometer is equipped with a cryostat serving as a planetary simulation chamber which permits simulation of environmental conditions on planetary surfaces, namely pressure (10-6 hPa  – 1000 hPa), atmospheric constituents, and temperature (4K – 500K). The laboratory is also equipped with preparation facilities for analog materials. The samples which are analyzed in the laboratory range from minerals, Martian analog material, meteorites, biological samples (e.g. carotene, naringenin, lichens, bacteria, archaea and other) and  samples returned from the asteroid Itokawa (Hayabusa samples). The micro-spectrometer has the following specifications:

  • confocal Raman microscope Witec alpha300 system;
  • various objectives: 10xEPlan; 20x, 50x, 100x and 100xLWD
  • lase excitation wavelengths: 532 nm;  633nm
  • laser power: up to 14 mW on sample adjustable in minimum 0.01mW steps
  • spot size on the sample in focus  <1.5 µm;
  • grating spectrometer: 600 l/mm and 1800 l/mm gratings; 4-5 cm-1 and 1 cm-1 spectral resolution;
  • Scan table: 200µm x 200µm  with spatial resolution 1nm
  • AFM - capability with contact and pulsed force modes

Contact
Dr.rer.nat. Andreas Lorek
German Aerospace Center

Institute of Planetary Research
, Planetary Laboratories
Berlin

Tel.: +49 30 67055-390

Dr.rer.nat. Stephen Patrick Garland
German Aerospace Center

Institute of Planetary Research
, Planetary Laboratories
Berlin

Tel.: +49 30 67055-8060

Topics
Astrobiology
Infrared (IR) spectroscopy
LIBS/Raman spectroscopy
Security research
Terahertz spectroscopy and imaging
Missions
BIOMEX
MERTIS - BepiColombo
MESSENGER
PFS - Mars Express
SOFIA
VIRTIS - Venus Express
Laboratories
Heterodyne laboratory
Laser laboratory
Mars Simulation Facility-Laboratory
Raman laboratory
Spectroscopy laboratory / Planetary Emissivity laboratory
Terahertz laboratory
Conferences, workshops and others
Book: Terahertz Techniques
Kryo 2010
TeraSec
THz Frischlingetreffen 2013
Related links
AG Terahertz Spectroscopy TU-Berlin
Related Topics
Lunar and Planetary Science and Exploration
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