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Remote Raman Spectroscopy for Planetary Exploration: A Review

Volume 66, Number 2 (Feb. 2012) Page 137-150

S. MICHAEL ANGEL,* NATHANIEL R. GOMER, SHIV K. SHARMA, and CHRIS McKAY


In this review, we discuss the current state of standoff Raman spectroscopy as it applies to remote planetary applications, including standoff instrumentation, the technique's ability to identify biologically and geologically important analytes, and the feasibility to make standoff Raman measurements under various planetary conditions. This is not intended to be an exhaustive review of standoff Raman and many excellent papers are not mentioned. Rather it is intended to give the reader a quick review of the types of standoff Raman systems that are being developed and that might be suitable for astrospectroscopy, a look at specific analytes that are of interest for planetary applications, planetary measurement opportunities and challenges that need to be solved, and a brief discussion of the feasibility of making surface and plume planetary Raman measurements from an orbiting spacecraft.

Index Headings: Planetary Raman; Standoff Raman; Astrospectroscopy; Laser-induced breakdown spectroscopy; LIBS; Laser-induced fluorescence; LIF; Europa; Enceladus; Astrobiology.