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Optics Letters

Optics Letters

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  • Vol. 29, Iss. 15 — Aug. 1, 2004
  • pp: 1769–1771

Defect-mode dependence of two-photon-absorption enhancement in a one-dimensional photonic bandgap structure

Guohong Ma, Sing Hai Tang, Jie Shen, Zhuangjian Zhang, and Zhongyi Hua  »View Author Affiliations


Optics Letters, Vol. 29, Issue 15, pp. 1769-1771 (2004)
http://dx.doi.org/10.1364/OL.29.001769


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Abstract

A one-dimensional photonic crystal containing a single CdS defect layer of various thicknesses was fabricated. The dependence of the two-photon-absorption (TPA) coefficient on the defect mode was investigated by use of a femtosecond pumpprobe method. Experimental results show that the TPA coefficient of the CdS defect layer depends strongly on the defect mode in the photonic bandgap. This is consistent with the predicted dependence of light intensity within the defect layer.

© 2004 Optical Society of America

OCIS Codes
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(310.6860) Thin films : Thin films, optical properties

Citation
Guohong Ma, Sing Hai Tang, Jie Shen, Zhuangjian Zhang, and Zhongyi Hua, "Defect-mode dependence of two-photon-absorption enhancement in a one-dimensional photonic bandgap structure," Opt. Lett. 29, 1769-1771 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-15-1769

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