Enhanced optical limiting in derivatized fullerenes

被引:85
作者
Smilowitz, L [1 ]
McBranch, D [1 ]
Klimov, V [1 ]
Robinson, JM [1 ]
Koskelo, A [1 ]
Grigorova, M [1 ]
Mattes, BR [1 ]
Wang, H [1 ]
Wudl, F [1 ]
机构
[1] UNIV CALIF SANTA BARBARA,INST POLYMERS & ORGAN SOLIDS,SANTA BARBARA,CA 93106
关键词
D O I
10.1364/OL.21.000922
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have observed enhanced optical limiting behavior in solutions of a derivatized fullerene (phenyl-C-61-butyric acid cholesteryl ester) from 532 to 700 nm. Transient absorption measurements determined the spectral and temporal regions of interest for optical limiting in C-60 and in C-60 derivatives that are due to a reverse saturable absorption mechanism and predicted enhanced limiting at longer wavelengths. Intensity-dependent transmission measurements made at several wavelengths confirmed these results. The increased solubility and the broadened ground-state absorption of the functionalized C-60 make it suitable for use as an optical limiter in the red and the near infrared. (C) 1996 Optical Society of America.
引用
收藏
页码:922 / 924
页数:3
相关论文
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