Femtosecond Optical Kerr Effect of Surface Modified PbS Nanocrystals
AI Xi-cheng, JIN Rong, WANG Jing-jing, XIA Zong-ju, ZOU Ying-hua, GUO Lin1 , LI Qian-shu1 , ZHU He-sun1
Department of Physics, Mesoscopic Physics Laboratory, Peking University, Beijing 100871
1 College of Chemical Engineering and Materials Science, Beijing Institute of Technology, Beijing 100081
Femtosecond Optical Kerr Effect of Surface Modified PbS Nanocrystals
AI Xi-cheng;JIN Rong;WANG Jing-jing;XIA Zong-ju;ZOU Ying-hua;GUO Lin1 ;LI Qian-shu1 ;ZHU He-sun1
Department of Physics, Mesoscopic Physics Laboratory, Peking University, Beijing 100871
1 College of Chemical Engineering and Materials Science, Beijing Institute of Technology, Beijing 100081
关键词 ：
42.65.An ,
42.65.Re ,
78.66.Jg
Abstract ： Surface modified PbS nanocrystals were fabricated by a novel method and their ultrafast optical nonlinearity was studied by the femtosecond time-resolved optical Kerr effect. A large nonlinear effect (x(3) ~ 5 ×10-12 esu) with a laser pulse limited response was observed. This may be attributed to the reduction of surface trapped electrons due to the surface modification.
Key words ：
42.65.An
42.65.Re
78.66.Jg
出版日期: 1998-03-01
:
42.65.An
(Optical susceptibility, hyperpolarizability)
42.65.Re
(Ultrafast processes; optical pulse generation and pulse compression)
78.66.Jg
(Amorphous semiconductors; glasses)
引用本文:
AI Xi-cheng;JIN Rong;WANG Jing-jing;XIA Zong-ju;ZOU Ying-hua;GUO Lin;LI Qian-shu;ZHU He-sun. Femtosecond Optical Kerr Effect of Surface Modified PbS Nanocrystals[J]. 中国物理快报, 1998, 15(3): 192-194.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1998/V15/I3/192
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1998, Vol. 15 
