Nanoparticle Acoustic Resonance Enhanced Nearly Degenerate Four-Wave Mixing

被引：8

作者：

Xiang, Dao ^{[1
]}

Gordon, Reuven ^{[1
]}

机构：

[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 3P6, Canada

来源：

ACS PHOTONICS | 2016年 / 3卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

nonlinear nanophotonics; nanoparticles; acoustic vibration; four-wave mixing; SEMICONDUCTOR OPTICAL AMPLIFIERS; STIMULATED BRILLOUIN-SCATTERING; ARTIFICIAL KERR MEDIUM; WAVELENGTH CONVERSION; GOLD NANOPARTICLES; RAMAN-SCATTERING; QUANTUM-WELL; WAVE-GUIDES; LIGHT; DEPENDENCE;

D O I：

10.1021/acsphotonics.5b00757

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanoparticles have acoustic resonances in the 10 GHz to THz range, which makes them interesting for resonantly enhanced four-wave mixing applications such as frequency conversion. Using a nearly degenerate four-wave mixing setup and comparing with Rayleigh Gans Debye scattering, we estimate a nonlinear refractive index, n, of approximately 2 x 10(-5) cm(2)/MW for 22 nm polystyrene nanospheres in water at a difference frequency of 43 GHz. This is nearly 3 orders of magnitude larger than the typical below-band-gap nonlinear response of semiconductors. This strong high-frequency response may be ideal for four-wave conversion in all-optical information technologies, with appropriately chosen nanoparticle sizes.

引用

页码：1421 / 1425

页数：5

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