Low threshold lasers from wavelength-engineered colbidal quantum dot enabled by single-exciton optical gain

Author

Cuong Dang ; Kwangdong Roh ; Joonhee Lee ; Nurmikko, Arto ; Breen, C. ; Steckel, J.S. ; Coe-Sullivan, S.

Author_Institution

Sch. of Eng., Brown Univ., Providence, RI, USA

fYear

2012

fDate

7-9 Aug. 2012

Firstpage

1

Lastpage

2

Abstract

Wavelength engineered nanocrystal colloidal quantum dots were used to create a thin solid films. Very low thresholds for light amplification were achieved in these red, green and blue film by a single exciton gain mechanism which also enables optical gain with quasi-steady pumping source.

Keywords

amplification; colloids; excitons; laser beams; nanophotonics; nanostructured materials; optical pumping; quantum dot lasers; semiconductor thin films; blue film; green film; light amplification; low threshold lasers; quasisteady pumping source; red film; single-exciton optical gain; thin solid films; wavelength engineered nanocrystal colloidal quantum dots; Cavity resonators; Excitons; Films; Laser excitation; Optical pulse generation; Quantum dot lasers; Vertical cavity surface emitting lasers; RGB lasers; colloidal quantum dot; optical gain; single exciton gain;

fLanguage

English

Publisher

ieee

Conference_Titel

Lester Eastman Conference on High Performance Devices (LEC), 2012

Conference_Location

Singapore

Print_ISBN

978-1-4673-2298-0

Electronic_ISBN

978-1-4673-2300-0

Type

conf

DOI

10.1109/lec.2012.6410994

Filename

6410994