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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 24 — Dec. 15, 2008
  • pp: 3016–3018

Coherent anti-Stokes Raman scattering spectral interferometry with large spectral phase gradient induced by highly dispersive optical elements

Eun Seong Lee and Jae Yong Lee  »View Author Affiliations


Optics Letters, Vol. 33, Issue 24, pp. 3016-3018 (2008)
http://dx.doi.org/10.1364/OL.33.003016


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Abstract

In a conventional coherent anti-Stokes Raman scattering (CARS) microscope system, we generate a local oscillator CARS field and a sample CARS field successively along a single-beam path. A large gradient of relative spectral phase between the two fields is naturally induced by highly dispersive microscope elements. The resulting spectral interferogram is a form of fast varying sinusoidal fringes modulated by the amplitude and phase of the sample CARS field. With the help of the Hilbert transform on the heterodyne part of the interferogram, both real and imaginary quadratures of the sample CARS spectrum are extracted with an improved signal-to-noise ratio.

© 2008 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(300.6230) Spectroscopy : Spectroscopy, coherent anti-Stokes Raman scattering

ToC Category:
Spectroscopy

History
Original Manuscript: September 23, 2008
Revised Manuscript: November 10, 2008
Manuscript Accepted: November 12, 2008
Published: December 12, 2008

Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Eun Seong Lee and Jae Yong Lee, "Coherent anti-Stokes Raman scattering spectral interferometry with large spectral phase gradient induced by highly dispersive optical elements," Opt. Lett. 33, 3016-3018 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-24-3016

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