LINEAR AND NONLINEAR OPTICAL PROPERTIES OF GOLD NANOPARTICLES STABILIZED WITH POLYVINYL ALCOHOL

被引：6
|
作者：
Hari, Misha [1 ]
Joseph, Santhi Ani [1 ]
Balan, Nithyaja [1 ]
Mathew, S. [1 ,2 ]
Kumar, Ravi [2 ]
Mishra, Giridhar [3 ]
Yadhav, R. R. [3 ]
Radhakrishnan, P. [1 ,2 ]
Nampoori, V. P. N. [1 ]
机构：
[1] Cochin Univ Sci & Technol, Int Sch Photon, Cochin 22, Kerala, India
[2] Cochin Univ Sci & Technol, CELOS, Cochin 22, Kerala, India
[3] Univ Allahabad, Dept Phys, Allahabad 211002, Uttar Pradesh, India
来源：
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS | 2011年 / 20卷 / 04期
关键词：
Surface plasmon resonance; gold-PVA nanocomposite; nonlinear absorption; z-scan; induced absorption; optical limiting; IN-SITU SYNTHESIS; POLYMER; FILMS; SIZE;
D O I：
10.1142/S0218863511006261
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The nonlinear optical absorption of gold nanoparticles dispersed in polyvinyl alcohol (Au:PVA) is investigated using open aperture Z-scan technique. Au:PVA nanocomposite material is synthesized by chemical method. The characterization of the material is done by UV/Vis absorption spectroscopy, transmission electron microscopy and X-ray diffractometry (XRD). It is observed that the nature of the nonlinear absorption depends on the excitation wavelength. The optical limiting capability of the sample is also demonstrated at a wavelength of 532 nm.
引用
收藏
页码：467 / 475
页数：9
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