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arXiv 0801.1084cond-mat.mtrl-sci
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用于新型光学器件的非线性光子准晶

Nonlinear Photonic Quasicrystals for Novel Optical Devices

Alon Bahabad, Ron Lifshitz, Noa Voloch, Ady Arie

摘要:

两种著名的方法设计的准晶体模型被用来创建新的非线性光学器件。这些器件可用于几种不同过程的有效三波混频,因此相对于更常见的周期性非线性光子晶体提供更大的灵活性。我们展示了偏振开关以及多波长和多方向倍频的应用。广义双网格方法被证明是有效的设计光子准晶的一维共线器件以及复杂的二维多向器件。该方法通过周期性二维非线性光子晶体以无理角发送有限宽度的光束来实现。这使得两个同时共线的光学过程,可以通过改变光束的角度来改变。

英文摘要:

Two well-known methods for the design of quasicrystal models are used to create novel nonlinear optical devices. These devices are useful for efficient three-wave mixing of several different processes, and therefore offer greater flexibility with respect to the more common periodic nonlinear photonic crystals. We demonstrate applications for polarization switching as well as multi-wavelength and multi-directional frequency doubling. The generalized dual grid method is proven to be efficient for designing photonic quasicrystals for one-dimensional collinear devices as well as elaborate two-dimensional multi-directional devices. The cut and project method is physically realized by sending finite-width optical beams at an irrational angle through a periodic two-dimensional nonlinear photonic crystal. This enables two simultaneous collinear optical processes that can be varied by changing the angle of the beams.

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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