Four-photon absorption in the single-crystal polymer bis(paratoluene) sulfonate

被引:29
作者
Shim, H [1 ]
Liu, MG [1 ]
Hwangbo, CK [1 ]
Stegeman, GI [1 ]
机构
[1] Univ Cent Florida, Ctr Res & Educ Opt & Lasers, Orlando, FL 32816 USA
关键词
D O I
10.1364/OL.23.000430
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Strong four-photon absorption corresponding to Im[chi((tau))((-)omega; w, (-)omega, omega, (-)omega, omega, (-)omega, omega)] has been measured for the first time to the authors' knowledge with 100-fs pulses at 1600 nm in the single-crystal polymer poly[bis(p-toluene sulfonate)] of 2,4-hexadiyne-1,6-diol. The transition involved is from the even-symmetry ground state into the vibronic subband of the dominant, even-symmetry, excited two-photon state at an energy of 2.7 eV. (C) 1998 Optical Society of America.
引用
收藏
页码:430 / 432
页数:3
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