Showing papers on "Photonic crystal published in 1989"

Photonic band structure: observation of an energy gap for light in 3-D periodic dielectric structures

Abstract: By analogy to electron waves in a crystal, light waves in a 3-D periodic dielectric structure should be described by band theory. Recently, the idea of a photonic band structure1 has been introduced. This means that the concepts of reciprocal space, Brillouin zones, dispersion relations, Bloch wave functions, Van Hove singularities, etc. must now be applied to optical waves. If the depth of the Index of refraction modulation is sufficient, a photonic band gap can exist.