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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 1 — Jan. 1, 2010
  • pp: 93–98

Quantitative deviation of the two-photon absorption coefficient based on three laser pulse models

Peide Zhao, Yong Zhang, Wenxia Bao, Zhongya Zhang, Dayun Wang, Ming Liu, and Zhidong Zhang  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 1, pp. 93-98 (2010)


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Abstract

The pulse profile influence of excitation light on the two-photon absorption coefficient \beta is theoretically and numerically studied. Based on Gaussian spatial and temporal laser, we obtain an expansion formula of energy transmission. As compared with a plain beam and a pulse beam that is rectangular in time but Gaussian in space, the relative deviations of \beta turn out to be about 214% and 47%, respectively. These differences indicate that a smaller \beta may be obtained than the real one in usual nonlinear transmission. Our result suggests that by taking real pulse profile into account, a more exact \beta can be derived in energy transmission measurement.

© 2010 Chinese Optics Letters

OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(160.4330) Materials : Nonlinear optical materials
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(140.3538) Lasers and laser optics : Lasers, pulsed

Citation
Peide Zhao, Yong Zhang, Wenxia Bao, Zhongya Zhang, Dayun Wang, Ming Liu, and Zhidong Zhang, "Quantitative deviation of the two-photon absorption coefficient based on three laser pulse models," Chin. Opt. Lett. 8, 93-98 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-1-93

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