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15 October 2004 Characterization of two-photon absorption and its resonance enhancement by Z-scan method
Kenji Kamada
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Proceedings Volume 5516, Nonlinear Optical Transmission and Multiphoton Processes in Organics II; (2004) https://doi.org/10.1117/12.564846
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States
Abstract
Two-photon absorption (TPA) cross section of some previously reported compounds is reexamined by the femtosecond open-aperture Z-scan method and the comparison among cross-section values measured by different measurement techniques is discussed. Also a TPA spectrum of a diacetylene derivative measured by the Z-scan method is presented. Drastic enhancement has been observed in the visible wavelength region of the spectrum, which is interpreted in terms of resonance enhancement of simultaneous TPA process. Contribution of stepwise TPA process to the observed enhancement is estimated by simulation for the dynamics.
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Kenji Kamada "Characterization of two-photon absorption and its resonance enhancement by Z-scan method", Proc. SPIE 5516, Nonlinear Optical Transmission and Multiphoton Processes in Organics II, (15 October 2004); https://doi.org/10.1117/12.564846
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