Effect of externally injected radiation on amplified spontaneous emission in CO

Citation
A. Sakoda et al., Effect of externally injected radiation on amplified spontaneous emission in CO, APP PHYS B, 72(4), 2001, pp. 411-415
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS B-LASERS AND OPTICS
ISSN journal
0946-2171 → ACNP
Volume
72
Issue
4
Year of publication
2001
Pages
411 - 415
Database
ISI
SICI code
0946-2171(200103)72:4<411:EOEIRO>2.0.ZU;2-I
Abstract
The effect of externally injected radiation on the two-photon laser-induced amplified spontaneous emission (TP-LIASE) is reported. The wave generated via the same LIASE process in a seeder cell acts as a seeder field for the inverted medium created in a main cell. A nearly tenfold gain is achieved i n the B(1)Sigma (4) --> A (1)Pi (0, 3) transition of the CO molecule. We de monstrate that the single rotational transition in the B (1)Sigma (4) --> A (1)Pi (0, 4) band is selectively amplified by injection of laser radiation . This pump and seed arrangement facilitates detection of molecular spectra by simply tuning the seed-laser frequency. The polarization effect of the input laser radiation is briefly discussed.