LARGE NONLINEAR ABSORPTION IN C-60 THIN-FILMS

被引：18

作者：

GU, G ^{[1
]}

ZHANG, WC ^{[1
]}

ZEN, H ^{[1
]}

DU, YW ^{[1
]}

HAN, YN ^{[1
]}

ZHANG, WJ ^{[1
]}

DONG, FZ ^{[1
]}

XIA, YX ^{[1
]}

机构：

[1] ACAD SINICA,ANHUI INST OPT & FINE MECH,LASER SPECT LAB,HEFEI 230031,PEOPLES R CHINA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1993年 / 26卷 / 15期

关键词：

D O I：

10.1088/0953-4075/26/15/004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The non-linear absorption coefficients of C60 thin films at 633 nm were measured with the absolute measurement and the Z-scan method, respectively. Both measurements yield a large non-linear absorption coefficient beta = 4.4 cm W-1 and 8.0 cm W-1. A thermal self-focusing focusing effect was also observed. The possible mechanisms of the larger non-linear absorption were discussed. We predict that C60 thin film may be a good optical limiter for a continuous wave (cw) laser.

引用

页码：L451 / L455

页数：5

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