Journal
APPLIED PHYSICS LETTERS
Volume 89, Issue 17, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2360201
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Negatively and positively refractive behaviors are achieved in a two-dimensional photonic crystal of pillar type for TE and TM polarizations, respectively, at the same frequency. The photonic crystal is formed by a triangular lattice of silicon pillars of finite height on a silicon substrate. A polarization beam splitter based on such a photonic-crystal slab is demonstrated. Measurements at near infrared wavelengths indicate that two beams of different polarizations can be split with an extinction ratio of over 10 dB in a wide wavelength range. (c) 2006 American Institute of Physics.
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