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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 5 — Jun. 6, 2013

Circularly polarized coherent anti-Stokes Raman scattering microscopy

Paul Kumar Upputuri, Jian Lin, Li Gong, Xiang-Yang Liu, Haifeng Wang, and Zhiwei Huang  »View Author Affiliations


Optics Letters, Vol. 38, Issue 8, pp. 1262-1264 (2013)
http://dx.doi.org/10.1364/OL.38.001262


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Abstract

We demonstrate circularly polarized coherent anti-Stokes Raman scattering (CP-CARS) microscopy that significantly suppresses the nonresonant background for high-contrast vibrational imaging. Circularly polarized pump and Stokes fields with opposite handedness are used to excite CARS signal. In this case, theoretically the nonresonant CARS signal and resonant CARS signal from isotropic media will completely vanish, while the resonant CARS signal from anisotropic structures can still exist. This allows CARS imaging of anisotropic samples with enhanced resonant contrast. Furthermore, we performed CP-CARS imaging on fibroin fibers from silkworm silk, and the results confirmed its effectiveness in background suppression.

© 2013 Optical Society of America

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(300.6230) Spectroscopy : Spectroscopy, coherent anti-Stokes Raman scattering
(180.4315) Microscopy : Nonlinear microscopy

ToC Category:
Nonlinear Optics

History
Original Manuscript: February 4, 2013
Manuscript Accepted: March 5, 2013
Published: April 4, 2013

Virtual Issues
Vol. 8, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Paul Kumar Upputuri, Jian Lin, Li Gong, Xiang-Yang Liu, Haifeng Wang, and Zhiwei Huang, "Circularly polarized coherent anti-Stokes Raman scattering microscopy," Opt. Lett. 38, 1262-1264 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-38-8-1262

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