Title :
Smallest possible electromagnetic mode volume in a dielectric cavity
Author :
Coccioli, R. ; Boroditsky, M. ; Kim, K.W. ; Rahmat-Samii, Y. ; Yablonovitch, E.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
12/1/1998 12:00:00 AM
Abstract :
In photonic crystals, electromagnetic waves can be confined in all three dimensions leading to very small mode volumes. Computational search has been for smallest electromagnetic mode which occurs in two-dimensional dielectric photonic crystals slabs. The smallest mode volume found was V≈2(λ/2n)3, where n is the refractive index. This small mode volume can lead to significant enhancement of spontaneous emission rates in semiconductor nano-cavities due to the Purcell effect
Keywords :
cavity resonators; nanostructured materials; photonic band gap; refractive index; semiconductor quantum dots; spontaneous emission; Purcell effect; dielectric cavity; electromagnetic mode volume; photonic crystals; refractive index; semiconductor nano-cavities; small mode volumes; spontaneous emission rates; three dimensional confinement; two-dimensional dielectric photonic crystal slabs;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19982468
