Optical trirefringence in photonic crystal waveguides.

Autor: Netti MC; Department of Physics & Astronomy, University of Southampton, SO17 1BJ, United Kingdom., Harris A, Baumberg JJ, Whittaker DM, Charlton MB, Zoorob ME, Parker GJ
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2001 Feb 19; Vol. 86 (8), pp. 1526-9.
DOI: 10.1103/PhysRevLett.86.1526
Abstrakt: We demonstrate that 2D photonic crystals can possess optical trirefringence in which there are six field orientations for which linear incident light is not perturbed on reflection or transmission. Such a property is rigorously forbidden in homogeneous nonmagnetic dielectrics which can possess only optical birefringence. We experimentally demonstrate this phenomena in silicon-based mesostructures formed from photonic crystal waveguides embedded in a Fabry-Perot cavity. Multirefringence is controlled by the presence of submicron dielectric patterning and is well explained by an exact scattering matrix theory.
Databáze: MEDLINE