Romanov, S. G. and Johnson, N. P. and Fokin, A. V. and Butko, V. Y. and Yates, H. M. and Pemble, M. E. and Torres, C. M. S.

1997

Applied Physics Letters

Enhancement of the photonic gap of opal-based three-dimensional gratings

Validated

()

70

16

2091

2093

The ''semimetallic'' photonic band gap formed in a synthetic opal has been increased by depositing a layer (InP or TiO2) with high refractive index on the inner surface of opal voids, Reflectance spectra of the composites (nanolayers assembled within grating voids) are correlated with both the photonic structure of the opal and electronic structure of the semiconductor. (C) 1997 American Institute of Physics.