Two classes of photonic crystals with simultaneous band gaps
Journal
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Journal Volume
43
Journal Issue
6 A
Pages
3484-3490
Date Issued
2004
Author(s)
Abstract
In this study, we consider band structures of two classes of photonic crystals with two geometric parameters. The first class has a square lattice and is studied for dielectric contrast, centered at ε/ε0 = 11.4 (GaAs-air). The second class has a hexagonal lattice and is studied for dielectric contrast, centered at ε/ε0 = 13 (silicon-air). These examples have the following feature: the optimal (and largest) full band gap is obtained when both band gaps for E and H polarizations have the same (simultaneous) band edges. In addition, photonic crystals with two geometric parameters typically have much larger optimal band gaps than their counterparts with one geometric parameter.
Type
journal article