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Opt Express. 2006 Apr 17;14(8):3491-6.

Highly efficient multi-channel drop filter in a two-dimensional hetero photonic crystal.

Abstract

An in-plane, multi-channel drop filter with high efficiency, in a two-dimensional photonic crystal (PC) slab, is experimentally demonstrated. Based on the concept of heterostructure photonic crystals proposed previously, the device consists of multiple simply connected, PC-based filter units, in which each unit has a structure proportional to an optimized basic unit and operates at a different wavelength. Four-channel drop operation was successfully obtained, with high efficiencies of almost 100%, and equal quality factors, across all channels.

PMID:
19516495
[PubMed]
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