光子带隙结构中的广角光波布拉格散射

Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003. Pub Date : 2003-06-29 DOI:10.1109/ICTON.2003.1264634

N. M. Ushakov

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引用次数: 0

摘要

给出了以光折变全息图形式在光子带隙结构中的广角光波布拉格散射的一般原理。结果表明，当光栅矢量K/sub G/满足/spl theta//sub 0/ = /spl theta//sub B/ /spl plusmn/ /spl phi/ = const时，光栅矢量K/sub G/满足/spl theta//sub 0/为光波入射角，/spl phi/为光栅矢量倾角，/spl theta//sub B/为Bragg角时，可以实现理想的Bragg角光束导向。与声波相比，扇形光折变全息图提供了几乎无限的广角光波散射和相当于1的超高调制效率。

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Wide-angle optical wave Bragg scattering at photonic band-gap structures

The general principles of wide-angle optical wave Bragg scattering at photonic band gap structures in form of photorefractive holograms are offered. It was shown that ideal beam steering at the Bragg angle is possible when the condition /spl theta//sub 0/ = /spl theta//sub B/ /spl plusmn/ /spl phi/ = const is met for each grating vector K/sub G/, in which /spl theta//sub 0/ is angle of incidence of the optical wave, /spl phi/ is the inclination of the grating vector, and /spl theta//sub B/ is the Bragg angle. In contrast to acoustical waves photorefractive holograms as fan pattern offers practically unlimited of wide-angle optical-wave scattering and super high efficiency of modulation equal to 1.

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Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.

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