Three-dimensional photon confinement in photonic crystals of low-dimensional periodicity

P.R. Villeneuve, S.G. Johnson, J.D. Joannopoulos, S. Fan
1998 IEE Proceedings - Optoelectronics  
Photonic crystals of one-or twodimensional periodicity can be used to achieve three-dimensional photon confinement in dielectric waveguides with modal volumes of the order of a cubic half-wavelength. Since photonic crystals of low-dimensional periodicity do not have full three-dimensional bandgaps, the microcavities undergo increasing radiation losses with decreasing modal volumes. High-Q resonant modes can be generated by reducing the strength of the photon confinement. Increasingly, larger
more » ... easingly, larger modal volumes lead to lower radiation losses and more efficient coupling to waveguide modes outside the cavity.
doi:10.1049/ip-opt:19982467 fatcat:lfz2a7i6mjbcbk5kjwih6rncnq