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arXiv 0903.4150physics.opticsnlin.PS
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玻璃-二氧化钒纳米复合光波导中的光动力学

Light dynamics in glass-vanadium dioxide nanocomposite waveguides with thermal nonlinearity

Yaroslav V. Kartashov, Victor A. Vysloukh

摘要:

研究了激光在具有热光非线性的SiO2-VO 2纳米复合光波导中的传输。我们发现,大的修改的吸收系数以及嵌入到SiO2的主机介质,伴随着超导体到金属相变的VO 2纳米粒子的折射率的显着变化可能会导致在近红外波段的光限幅。

英文摘要:

We address the propagation of laser beams in Si02-VO2 nanocomposite waveguides with thermo-optical nonlinearity. We show that the large modifications of the absorption coefficient as well as notable changes of refractive index of VO2 nanoparticles embedded into the SiO2 host media that accompany the semiconductor-to-metal phase transition may lead to optical limiting in the near-infrared wave range.

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