Omnidirectional photonic band gap in polymer photonic crystal slabs

In this letter, we report on the experimental observation of a complete in-plane photonic band gap for transverse-electric-like polarized modes in a polymer photonic crystal slab with a triangular array of holes. We performed transmission measurements on two-dimensional photonic crystal slabs in both principal directions of the triangular lattice. For a propagation distance of 40 lattice constants, the transmission was effectively suppressed regardless of propagation direction below −15 dB over a bandwidth of 65 nm. The experimental results are in excellent agreement with theoretical predictions obtained from band diagram calculations and finite integration time domain techniques.

Subjects

polymer

photonic crystal

photonic band gap

optical waveguide

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Wuelbern_APL91_2007.pdf

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Omnidirectional photonic band gap in polymer photonic crystal slabs