Enhanced spontaneous emission using quantum dots and an apertured microcavity

Author

Deppe, D.G. ; Graham, L.A. ; Huffaker, D.L.

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA

Volume

35

Issue

10

fYear

1999

fDate

10/1/1999 12:00:00 AM

Firstpage

1502

Lastpage

1508

Abstract

Spontaneous emission characteristics from apertured microcavities are studied using quantum-dot light emitters. Spatial averaging over the emitter positions within the apertures significantly impacts the measured lifetime changes, but lifetime changes due to the aperture modes are still readily observed. A maximum increase of a factor of ~2.5 over the cavity-free emission rate is measured. We argue that, for a narrow bandwidth emitter, the microcavity enhancement can lead to nearly-single-mode and high-speed operation even in the spontaneous regime

Keywords

micro-optics; photoluminescence; radiative lifetimes; semiconductor quantum dots; spontaneous emission; aperture modes; apertured microcavity; cavity-free emission rate; emitter positions; enhanced spontaneous emission; high-speed operation; lifetime changes; microcavity enhancement; narrow bandwidth emitter; nearly-single-mode operation; quantum dots; quantum-dot light emitters; spontaneous emission characteristics; spontaneous regime; Apertures; Laser feedback; Light emitting diodes; Microcavities; Optical arrays; Optical fibers; Quantum dots; Semiconductor laser arrays; Spontaneous emission; US Department of Transportation;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.792581

Filename

792581