Large birefringence in two-dimensional silicon photonic crystals
- 3 April 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 63 (16), 161101
- https://doi.org/10.1103/physrevb.63.161101
Abstract
We report an experimental and theoretical study of the birefringence of two-dimensional photonic crystals in the spectral region below the first photonic band gap. Transmission spectroscopy is used to measure the birefringence of a sample composed of a triangular lattice of air cylinders in silicon, with a cylinder radius of and a lattice pitch of The measured birefringence (defined as the difference in the effective refractive indices of the electric fields polarized parallel and perpendicular to the cylinder axis) reaches a maximum value of 0.366 near the first photonic band edge at a wavelength of The results show excellent agreement with theory and demonstrate the potential use of two-dimensional photonic crystals for highly birefringent optically integrated devices.
Keywords
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