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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 18 — Sep. 15, 2007
  • pp: 2641–2643

High-resolution in vivo imaging of blood vessels without labeling

Dan Fu, Tong Ye, Thomas E. Matthews, Benny J. Chen, Gunay Yurtserver, and Warren S. Warren  »View Author Affiliations

Optics Letters, Vol. 32, Issue 18, pp. 2641-2643 (2007)

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We demonstrate that both oxyhemoglobin and deoxyhemoglobin have sequential two-color, two-photon absorption properties that can serve as endogenous contrasts in microvasculature imaging. Using a sensitive modulation transfer technique, we are able to image hemoglobin in red blood cells with micrometer resolution, both in vitro and in vivo. We show that excellent contrast from hemoglobin without any labeling can be obtained in tissue.

© 2007 Optical Society of America

OCIS Codes
(180.5810) Microscopy : Scanning microscopy
(190.4180) Nonlinear optics : Multiphoton processes
(320.7150) Ultrafast optics : Ultrafast spectroscopy

ToC Category:
Ultrafast Optics

Original Manuscript: June 15, 2007
Revised Manuscript: July 26, 2007
Manuscript Accepted: August 1, 2007
Published: September 4, 2007

Virtual Issues
Vol. 2, Iss. 10 Virtual Journal for Biomedical Optics

Dan Fu, Tong Ye, Thomas E. Matthews, Benny J. Chen, Gunay Yurtserver, and Warren S. Warren, "High-resolution in vivo imaging of blood vessels without labeling," Opt. Lett. 32, 2641-2643 (2007)

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