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Proceedings Paper

Background free CARS imaging by local phase detection
Author(s): M. Jurna; J. P. Korterik; C. Otto; L. Herek; H. L. Offerhaus
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Paper Abstract

In this article we show that heterodyne CARS, based on a controlled and stable phase-preserving chain, can be used to measure amplitude and phase information of molecular vibration modes. The technique is validated by a comparison of the imaginary part of the heterodyne CARS spectrum to the spontaneous Raman spectrum of polyethylene. The detection of the phase allows for rejection of the non-resonant background from the data. The resulting improvement of the signal to noise ratio is shown by measurements on a sample containing lipid.

Paper Details

Date Published: 13 February 2009
PDF: 7 pages
Proc. SPIE 7183, Multiphoton Microscopy in the Biomedical Sciences IX, 718310 (13 February 2009); doi: 10.1117/12.807714
Show Author Affiliations
M. Jurna, Univ. Twente (Netherlands)
J. P. Korterik, Univ. Twente (Netherlands)
C. Otto, Univ. Twente (Netherlands)
L. Herek, Univ. Twente (Netherlands)
H. L. Offerhaus, Univ. Twente (Netherlands)

Published in SPIE Proceedings Vol. 7183:
Multiphoton Microscopy in the Biomedical Sciences IX
Ammasi Periasamy; Peter T. C. So, Editor(s)

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