Optical limiting and thermal lensing studies in C60

被引:61
作者
Harilal, SS [1 ]
Bindhu, CV
Nampoori, VPN
Vallabhan, CPG
机构
[1] Cochin Univ Sci & Technol, Int Sch Photon, Laser Div, Cochin 682022, Kerala, India
[2] Sree Narayana Coll, Dept Phys, Cherthala 688582, India
关键词
D O I
10.1063/1.370899
中图分类号
O59 [应用物理学];
学科分类号
摘要
Optical limiting and thermo-optic properties of C-60 in toluene are studied using 532 nm, 9 ns pulses from a frequency-doubled Nd: YAG laser. Optical limiting studies in these fullerene molecules lead to the conclusion that reverse saturable absorption is the major mechanism for limiting properties in these molecules. Thermal lensing measurements are also performed in fullerene solutions. The quadratic dependence of thermal lens signal on incident energy confirms that enhanced optical absorption by the sample via excited triplet state absorption may play a leading role in the limiting property. (C) 1999 American Institute of Physics. [S0021-8979(99)01715-6].
引用
收藏
页码:1388 / 1392
页数:5
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