GAIN CONDITIONS FOR CONDUCTING POLYMER LASERS

Authors
MENG HF
Citation
Hf. Meng, GAIN CONDITIONS FOR CONDUCTING POLYMER LASERS, Physica. B, Condensed matter, 239(3-4), 1997, pp. 358-364
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
239
Issue
3-4
Year of publication
1997
Pages
358 - 364
Database
ISI
SICI code
0921-4526(1997)239:3-4<358:GCFCPL>2.0.ZU;2-L
Abstract
The condition of lasing threshold for solid-state conducting polymers is studied using a model Hamiltonian, which includes quasi-particles c orresponding to both Intrachain and interchain electronic excitations. We found that net gain can be achieved when the pump is so strong tha t intrachain and interchain species are mixed. A guide to overcome the difficulties coming from the photo-induced absorption due to the inte rchain excitations is proposed.