Investigation of transient two-photon excited fluorescence in biological tissue
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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