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篇目详细内容 |
【篇名】 |
Theory of enhanced second-harmonic generation in some artificial materials |
【刊名】 |
Frontiers of Physics in China |
【刊名缩写】 |
Front. Phys. China |
【ISSN】 |
1673-3487 |
【EISSN】 |
1673-3606 |
【DOI】 |
10.1007/s11467-007-0002-y |
【出版社】 |
Higher Education Press and Springer-Verlag |
【出版年】 |
2007 |
【卷期】 |
2
卷1期 |
【页码】 |
17-30
页,共
14
页 |
【作者】 |
HUANG Ji-ping;
|
【关键词】 |
second harmonic generation; soft nonlinear optical materials; graded metallic films; graded metal-dielectric films |
【摘要】 |
We review the recent theoretical investigation on enhanced second-harmonic generation (SHG) in soft nonlinear optical materials based on ferrofluids, graded metallic films, and graded metal-dielectric films of anisotropic particles. The SHG of soft ferrofluid-based nonlinear optical materials possess magnetic-field controllabilities, i.e., magnetic-field-controllable anisotropy, red-shift and enhancement, which are caused to appear by the shift of a resonant plasmon frequency due to the formation of the chains of the coated nanoparticles. Both graded metallic films and graded metal-dielectric films of anisotropic particles can serve as a novel optical material for producing a broad structure in both the linear and SHG response and an enhancement in the SHG signal, due to the local field effects. |
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