吸收截面
双光子吸收
吸收(声学)
横截面(物理)
飞秒
荧光
激发态
光子
光圈(计算机存储器)
材料科学
原子物理学
光学
物理
激光器
声学
量子力学
作者
Yaochuan Wang,Yizhuo Wang,Guiqiu Wang,Dajun Liu
出处
期刊:Optik
[Elsevier]
日期:2018-11-01
卷期号:172: 186-190
被引量:9
标识
DOI:10.1016/j.ijleo.2018.07.020
摘要
Femtosecond open-aperture Z-scan and two-photon excited fluorescence method, were performed to study the two-photon absorption cross-section of several tri-branched derivatives. The two-photon absorption cross-section values measured by the two different methods were compared. Our results indicate that, the absolute values of the two-photon absorption cross-section measured by different technique are obviously different. The absorption cross-sections measured by two-photon excited fluorescence method exhibited 2.1–2.3 times larger than that measured by open-aperture Z-scan method. And the difference is most likely caused by the system error of different measurements. Our results may provide scientific responsible reference as well as some useful information for the comparison of the two-photon absorption cross-section values measured by different methods.
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