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Mid-IR laser-based vibrational optical activity

 
: Pfeifer, Marcel; Fischer, Peer; Lüdeke, Steffen

:

Mahadevan-Jansen, A. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Biomedical Vibrational Spectroscopy V. Advances in Research and Industry : 21 - 22 January 2012, San Francisco, California, United States
Bellingham, WA: SPIE, 2012 (Proceedings of SPIE 8219)
ISBN: 978-0-8194-8862-6
ISSN: 1605-7422
Paper 821906
Conference "Biomedical Vibrational Spectroscopy - Advances in Research and Industry" <5, 2012, San Francisco/Calif.>
Englisch
Konferenzbeitrag
Fraunhofer IPM ()
vibrational circular dichroism (VCD); vibrational circular birefringence (VCB); quantum cascade laser (QCL); IR absorption

Abstract
Vibrational circular dichroism (VCD) and vibrational circular birefringence (VCB) spectra were recorded with a tunable external-cavity quantum-cascade laser (QCL). In comparison with standard thermal light sources, QCLs provide orders of magnitude more power and are therefore promising for vibrational optical activity (VOA) studies in strongly absorbing solvents and longer path length cells. The brightness of this novel light source is demonstrated with IR absorption, VCD and VCB measurements of (R)-(+)-limonene.

: http://publica.fraunhofer.de/dokumente/N-195570.html