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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 27, Iss. 13 — Jul. 1, 2002
  • pp: 1168–1170

High-sensitivity coherent anti-Stokes Raman scattering microscopy with two tightly synchronized picosecond lasers

Eric O. Potma, David J. Jones, J.-X. Cheng, X. S. Xie, and Jun Ye  »View Author Affiliations


Optics Letters, Vol. 27, Issue 13, pp. 1168-1170 (2002)
http://dx.doi.org/10.1364/OL.27.001168


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Abstract

We demonstrate a significant improvement in signal-to-noise ratio in coherent anti-Stokes Raman scattering (CARS) spectroscopy/microscopy, using two highly synchronized picosecond Ti:sapphire lasers. A temporal jitter between the pulse trains from the two independent commercial lasers is reduced from a few picoseconds to ~21 fs , maintained over several hours. The tight synchronization brings the fluctuation of the CARS signal down to the shot-noise limit, leading to enhanced CARS vibrational images of living cells and polymer beads.

© 2002 Optical Society of America

OCIS Codes
(110.3080) Imaging systems : Infrared imaging
(140.7090) Lasers and laser optics : Ultrafast lasers
(300.6230) Spectroscopy : Spectroscopy, coherent anti-Stokes Raman scattering
(320.0320) Ultrafast optics : Ultrafast optics

Citation
Eric O. Potma, David J. Jones, J.-X. Cheng, X. S. Xie, and Jun Ye, "High-sensitivity coherent anti-Stokes Raman scattering microscopy with two tightly synchronized picosecond lasers," Opt. Lett. 27, 1168-1170 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-13-1168

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