Preparation and Nonlinear Optical Properties of Au Colloid
ZHAO Chong-Jun1 , QU Shi-Liang1 , GAO Ya-Chen2 , SONG Ying-Lin2 , QIU Jian-Rong1 , ZHU Cong-Shan1
1 Photon Craft Project, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences and Japan Science and Technology Corporation, Shanghai 201800
2 Department of Physics, Harbin Institute of Technology, Harbin 150001
Preparation and Nonlinear Optical Properties of Au Colloid
ZHAO Chong-Jun1 ;QU Shi-Liang1 ;GAO Ya-Chen2 ;SONG Ying-Lin2 ;QIU Jian-Rong1 ;ZHU Cong-Shan1
1 Photon Craft Project, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences and Japan Science and Technology Corporation, Shanghai 201800
2 Department of Physics, Harbin Institute of Technology, Harbin 150001
关键词 ：
42.65.Jx ,
82.50.Pt ,
82.70.Dd
Abstract ： Colloidal Au less than 20 nm was prepared in an aqueous solution of HAuCl4 by irradiation with a near-infrared femtosecond laser. The absorption peak around 526 nm in the absorption spectra and the peaks 2θ = 38.3°and 2θ = 24°in the x-ray diffraction (XRD) pattern indicated the formation of Au colloid. Nonlinear optical properties of Au colloid were investigated by using the Z-scan technique with 8 ns pulses at 532 nm. The transition characteristics from self-defocusing to self-focusing and from saturable absorption (SA) to reverse saturable absorption (RSA) were observed for the Au colloid.
Key words ：
42.65.Jx
82.50.Pt
82.70.Dd
出版日期: 2003-10-01
:
42.65.Jx
(Beam trapping, self-focusing and defocusing; self-phase modulation)
82.50.Pt
(Multiphoton processes)
82.70.Dd
(Colloids)
引用本文:
ZHAO Chong-Jun;QU Shi-Liang;GAO Ya-Chen;SONG Ying-Lin;QIU Jian-Rong;ZHU Cong-Shan. Preparation and Nonlinear Optical Properties of Au Colloid[J]. 中国物理快报, 2003, 20(10): 1752-1754.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2003/V20/I10/1752
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