請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/34439
標題: Measuring plasmon-resonance enhanced third-harmonic chi((3)) of Ag nanoparticles
作者: Liu, T.M.
林寬鋸
Tai, S.P.
Yu, C.H.
Wen, Y.C.
Chu, S.W.
Chen, L.J.
Prasad, M.R.
Lin, K.J.
Sun, C.K.
關鍵字: generation microscopy
optical susceptibility
particles
constants
biology
silver
media
期刊/報告no:: Applied Physics Letters, Volume 89, Issue 4.
摘要: By coinciding the plasmon frequency with the third-harmonic frequency of the excitation light, the authors determined the plasmon-resonance enhanced optical third-harmonic-generation (THG) susceptibility of a polyvinylpyrrolidone-coated Ag nanoparticle with a 5-7 nm diameter. With dispersed Ag nanoparticles on a quartz surface and through measuring the frequency dependent THG intensities, interface THG showed evident enhancement when the third harmonic of excitation matched the Ag-nanoparticle's plasmon-resonant frequency. According to the effective medium theory and by analyzing the interface THG under focused Gaussian beams, the ensemble-averaged chi((3))(3 omega:omega,omega,omega) of a Ag nanoparticle can be estimated to be on the order of 2x10(-11) esu. (c) 2006 American Institute of Physics.
URI: http://hdl.handle.net/11455/34439
ISSN: 0003-6951
文章連結: http://dx.doi.org/10.1063/1.2240738
顯示於類別:化學系所

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