期刊
OPTICS COMMUNICATIONS
卷 283, 期 18, 页码 3525-3528出版社
ELSEVIER
DOI: 10.1016/j.optcom.2010.05.007
关键词
Z-scan technique; Saturable absorption; Two-photon absorption
类别
资金
- National Science Foundation of China [60778006, 60878023]
By using the Adomian decomposition method, we present the transmitted optical intensity of a nonlinear medium with the concurrence of saturable absorption (SA) and two-photon absorption (TPA) processes. We obtain the analytical expression of the open-aperture Z-scan and investigate the interplay between SA and TPA in the Z-scan trace. Through Z-scan measurements at different levels of laser intensities, both the saturable intensity and TPA coefficient could be obtained quickly yet unambiguously. (C) 2010 Elsevier B.V. All rights reserved.
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