Microcavity light sources

Author

Bhattacharya, Pallab

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

fYear

2001

fDate

2001

Firstpage

338

Abstract

Summary form only given. Microcavity light sources have become important for their potential application in optical communication and imaging. Near single-mode operation, increased directionality and enhanced modulation bandwidth can be obtained from a microcavity light emitting diode in which the device dimensions are of the order of the wavelength of operation. Microcavity light emitters can be realized by using DBRs, air-semiconductor interfaces, oxide apertures and photonic crystals with defects in the lattice. Some characteristics of air-post and oxide-confined InP-based 1.55 μm microcavity light-emitting diodes will be presented. Perhaps, the most appealing technique to realize a true photonic microcavity with minimum modal volume is to use a photonic bandgap (PBG) crystal with a single or multiple defects. The fabrication and characteristics of electrically injected single-defect PBG crystal light emitters (λ~0.9 μm) will be described and discussed. Preliminary results from similar devices emitting at ~1.55 μm will also be presented. Finally, the effects of placing quantum dots in such microcavities will be presented and discussed

Keywords

infrared sources; light emitting diodes; photonic band gap; quantum dots; 0.9 micron; 1.55 micron; DBRs; InP; air-post oxide-confined microcavity LED; air-semiconductor interfaces; directionality; electrically injected single-defect PBG crystal light emitters; enhanced modulation bandwidth; lattice defects; microcavity light emitting diode; microcavity light sources; minimum modal volume; near single-mode operation; optical communication; optical imaging; oxide apertures; photonic bandgap; photonic crystals; photonic microcavity; quantum dots; Apertures; Bandwidth; Light emitting diodes; Light sources; Microcavities; Optical fiber communication; Optical imaging; Optical modulation; Photonic band gap; Photonic crystals;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Device Research Symposium, 2001 International

Conference_Location

Washington, DC

Print_ISBN

0-7803-7432-0

Type

conf

DOI

10.1109/ISDRS.2001.984509

Filename

984509