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arXiv 1602.04092cond-mat.mes-hall
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laser辐照立方金属纳米粒子的等离子体增强二次谐波产生

Plasmon-enhanced second harmonic generation in the laser-irradiated cubic metal nanoparticles

S. V. Fomichev, A. M. Bratkovsky

摘要:

首次采用流体力学近似和冷等离子体近似计算了亚波长中性金属立方纳米粒子的等离子体增强二次谐波产生。该理论的发展,考虑到所有的奇异性的电磁场在立方纳米粒子表面。结果进行比较的线性情况下的纳米立方体和球形纳米粒子。在后一种情况下,它们表现出非常强的局部场强和二次谐波信号的增强。

英文摘要:

The plasmon-enhanced second harmonic generation in the subwavelength neutral metal cubic nanoparticles is calculated for the first time in the hydrodynamic and cold plasma approximations. The theory is developed that takes into account all singularities of the electromagnetic field at the cubic nanoparticle surface. The results are compared to the linear case for the nanocube and to those for a spherical nanoparticle. In the latter case, they demonstrate very strong enhancement of the local field strength and the second harmonic signal.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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