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Mie-enhanced photothermal/thermo-optical nonlinearity and applications on all-optical switch and super-resolution imaging [Invited]
Optical Materials Express ( IF 2.8 ) Pub Date : 2021-10-04 , DOI: 10.1364/ome.431533
Yu-Lung Tang , Te-Hsin Yen , Kentaro Nishida , Junichi Takahara , Tianyue Zhang , Xiangping Li , Katsumasa Fujita , Shi-Wei Chu

Nonlinear optical interactions are of fundamental significance for advanced photonic applications, but usually the nonlinearity magnitude is insufficient. Here we review recent progresses to boost the optical nonlinearity of metal or semiconductor nanostructures via the combination of Mie resonance and coupled photothermal/thermo-optical effects. In plasmonic and silicon nanoparticles, the effective photothermal nonlinear index n2 is enhanced by 103 and 105 times over that of bulk, respectively. The large nonlinearities enable applications of not only all-optical switch, but also super-resolution imaging based on suppression of scattering, saturation (sub-linearity) and reverse saturation (super-linearity).

中文翻译:

Mie增强的光热/热光非线性及其在全光开关和超分辨率成像中的应用 [邀请]

非线性光学相互作用对于先进的光子应用具有根本意义,但通常非线性幅度是不够的。在这里,我们回顾了通过 Mie 共振和耦合光热/热光效应的组合来提高金属或半导体纳米结构的光学非线性的最新进展。在等离子体和硅纳米粒子中,有效的光热非线性指数n 2分别比本体高 10 3和 10 5倍。大的非线性不仅可以应用全光开关,还可以应用基于散射、饱和(亚线性)和反向饱和(超线性)抑制的超分辨率成像。
更新日期:2021-11-01
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