Abstract
A rigorous theory for solving general 3-D photonic crystal refraction problem is developed. The power flow
direction and transmission intensity of each mode refracted at a periodic surface are rigorously analyzed and
determined from matrix equations. We further illustrate how to apply our method to design a low-index-contrast 3-D
superprism structure that exhibits efficient transmission over a wide angular scanning range at wavelengths near
1550 nm.
© 2007 IEEE
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