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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 5 — May. 1, 2012
  • pp: 051901–

Investigation of transient two-photon excited fluorescence in biological tissue

Yishen Qiu, Enguo Chen, Gaoming Li, and Hui Li  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 5, pp. 051901- (2012)


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Abstract

The fluorescence power from biological tissue excited by a femtosecond laser pulse compared with excitation power does not appear to obey a simple quadratic relationship given by the steady non-linear theory. A more reliable analysis is developed based on transient two-photon absorption because the response time of two-photon absorption is longer than the width of a femtosecond pulse. Good agreement is obtained between the theoretical analysis and the experimental results of fluorescence power versus excitation power. This letter offers potential value to non-linear optics in biological tissues.

© 2012 Chinese Optics Letters

OCIS Codes
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(190.4180) Nonlinear optics : Multiphoton processes
(260.2510) Physical optics : Fluorescence

ToC Category:
Nonlinear Optics

Citation
Yishen Qiu, Enguo Chen, Gaoming Li, and Hui Li, "Investigation of transient two-photon excited fluorescence in biological tissue," Chin. Opt. Lett. 10, 051901- (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-5-051901


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