Nanoimprinted organic distributed feedback lasers under pulsed and quasi-CW optical pumping

Author

Kozlov, V.G. ; Wang, J. ; Chou, S.Y. ; Forrest, S.R.

Author_Institution

Princeton Univ., NJ, USA

fYear

1999

fDate

23-23 June 1999

Firstpage

70

Lastpage

71

Abstract

We have previously demonstrated organic semiconductor lasers with low lasing thresholds (P/sub th/=0.2 /spl mu/J/cm/sup 2/). The devices consist of an organic double-heterostructure waveguide with a distributed optical feedback provided by a 1/sup st/ order optical grating (200 nm period) fabricated by nanoimprinting. In this paper we report induced absorption effects found in the study of single layer distributed feedback (DFB) organic lasers under pulsed and quasi-CW optical excitations. These results agree qualitatively with our study of electrically pumped structures and have direct implications on development of diode lasers based on thin films of organic semiconductors.

Keywords

distributed feedback lasers; nanotechnology; optical pumping; organic semiconductors; semiconductor lasers; diode laser; double heterostructure waveguide; induced absorption; nanoimprinting; optical grating; organic distributed feedback laser; organic semiconductor thin film; pulsed optical pumping; quasi-CW optical pumping; Distributed feedback devices; Laser feedback; Optical feedback; Optical films; Optical pulses; Optical pumping; Optical waveguides; Organic semiconductors; Semiconductor lasers; Waveguide lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Device Research Conference Digest, 1999 57th Annual

Conference_Location

Santa Barbara, CA, USA

Print_ISBN

0-7803-5170-3

Type

conf

DOI

10.1109/DRC.1999.806328

Filename

806328