Degenerate two-photon-absorption spectral studies of highly two-photon active organic chromophores

Guang S. He, Tzu Chau Lin, Jianming Dai, Paras N. Prasad, Ramamurthi Kannan, Ann G. Dombroskie, Richard A. Vaia, Loon Seng Tan

研究成果: 雜誌貢獻期刊論文同行評審

74 引文 斯高帕斯(Scopus)

摘要

A single and spectrally dispersed sub-picosecond white-light continuum beam was used to study the degenerate two-photon absorption (TPA) spectral properties of five AFX chromophore solutions. The pump source for this continuum generation was a focused ultra-short pulsed laser beam provided by a Ti:sapphire laser oscillator/amplifier system. The collimated white-light continuum beam was spectrally dispersed by a prism or a grating and then focused into the sample. The results show that at high excitation intensity levels, the saturation behavior of TPA transition can be observed in AF-350 and AF-380 solutions that exhibit much higher nonlinear absorptivity than the other chromophores investigated.

原文???core.languages.en_GB???
頁(從 - 到)5275-5284
頁數10
期刊Journal of Chemical Physics
120
發行號11
DOIs
出版狀態已出版 - 15 3月 2004

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