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Excited-state nonlinear absorption and its description using density matrix theory

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【Author】 LI Chunfei SI Jinhai YANG MiaoWANG Ruibo and ZHANG Lei(Department of Physics, Harbin Institute of Technology, Harbin 150001, China)

【机构】 Department of Physics； Harbin Institute of Technology； Harbin 150001； China； China；

【摘要】 <正> A density matrix theory with a ten-energy-level model in the molecular system irradiated bya pulsed laser at non-resonant wavelength is proposed. The reverse saturable absorption under ns and pspulses and the transformation from reverse saturable absorption to saturable absorption under strong ps pulses are described by this model. The correctness of the theoretical model is proved by experiments.更多还原

【Abstract】 A density matrix theory with a ten-energy-level model in the molecular system irradiated bya pulsed laser at non-resonant wavelength is proposed. The reverse saturable absorption under ns and pspulses and the transformation from reverse saturable absorption to saturable absorption under strong ps pulses are described by this model. The correctness of the theoretical model is proved by experiments.更多还原

【关键词】 excited state； nonlinear absorption； reverse saturable absorption； density matrix.；
【Key words】 excited state； nonlinear absorption； reverse saturable absorption； density matrix.；

【基金】 the National Natural Science Foundation of China

【文献出处】 Science in China,Ser.A ,中国科学A辑(英文版) , 编辑部邮箱 ,1995年08期

【分类号】O411.1
【被引频次】1
【下载频次】34

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