It is shown that thin films of dielectric, etched through with a suitably chosen lattice of holes, can support surface-emitting vertical resonances with very-high-cavity <i>Q</i> factors (∼10<sup>5</sup> in the case of Al<sub>x</sub>GaAs<sub>1−x</sub> on oxidized Al<sub>y</sub>GaAs<sub>1−y</sub>). A Bloch-wave expansion is used to develop a complete vector-field analysis of these resonances and to reveal their underlying physics. Since they do not require multilayer mirrors, such resonators are a practical and simple replacement for conventional vertical-cavity surface-emitting laser structures. Other applications include wavelength-division-multiplexing components and highly sensitive gas detectors.
© 2001 Optical Society of America
(230.3120) Optical devices : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices
(230.5750) Optical devices : Resonators
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(310.6860) Thin films : Thin films, optical properties
J. M. Pottage, E. Silvestre, and P. St. J. Russell, "Vertical-cavity surface-emitting resonances in photonic crystal films," J. Opt. Soc. Am. A 18, 442-447 (2001)