We present quality factors of single-defect photonic-crystal resonant cavities with asymmetric cladding layers. The resonators studied here are dielectric slabs patterned with two-dimensional photonic crystals on a sapphire substrate. Three-dimensional finite-element and finite-difference time-domain routines were used to analyze the electromagnetic properties of these cavities. We observe that high quality factors (∼800) can be obtained in these cavities for reasonable structures with thick enough dielectric slabs. This work was motivated by the need to place photonic-crystal resonators on a substrate to improve heat dissipation in photonic-crystal lasers.
© 2002 Optical Society of America
[Optical Society of America ]
(140.0140) Lasers and laser optics : Lasers and laser optics
Cheolwoo Kim, Woo Jun Kim, Andrew Stapleton, Jiang-Rong Cao, John D. O’Brien, and P. Daniel Dapkus, "Quality factors in single-defect photonic-crystal lasers with asymmetric cladding layers," J. Opt. Soc. Am. B 19, 1777-1781 (2002)