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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 4 — Apr. 1, 2007
  • pp: 1138–1147

Focus-engineered coherent anti-Stokes Raman scattering microscopy: a numerical investigation

Vishnu Vardhan Krishnamachari and Eric Olaf Potma  »View Author Affiliations


JOSA A, Vol. 24, Issue 4, pp. 1138-1147 (2007)
http://dx.doi.org/10.1364/JOSAA.24.001138


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Abstract

The coherent anti-Stokes Raman scattering (CARS) signal is calculated as a function of focal-field distributions with engineered phase jumps. We show that the focal fields in CARS microscopy can be shaped such that the signal from the bulk is suppressed in the forward detection mode. We present the field distributions that display enhanced sensitivity to vibrationally resonant object interfaces in the lateral dimension. The use of focus-engineered CARS provides a simple means to detect chemical edges against the strong background signals from the bulk.

© 2007 Optical Society of America

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(180.5810) Microscopy : Scanning microscopy
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(270.1670) Quantum optics : Coherent optical effects

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 18, 2006
Revised Manuscript: October 31, 2006
Manuscript Accepted: October 31, 2006
Published: March 14, 2007

Virtual Issues
Vol. 2, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Vishnu Vardhan Krishnamachari and Eric Olaf Potma, "Focus-engineered coherent anti-Stokes Raman scattering microscopy: a numerical investigation," J. Opt. Soc. Am. A 24, 1138-1147 (2007)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-4-1138

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