ROOM-TEMPERATURE GAIN SPECTRA AND LASING IN MICROCRYSTALLINE ZNO THIN-FILMS

Authors
YU P TANG ZK WONG GKL KAWASAKI M OHTOMO A KOINUMA H SEGAWA Y
Citation
P. Yu et al., ROOM-TEMPERATURE GAIN SPECTRA AND LASING IN MICROCRYSTALLINE ZNO THIN-FILMS, Journal of crystal growth, 185, 1998, pp. 601-604
Citations number
15
Categorie Soggetti
Crystallography
Journal title
Journal of crystal growth → ACNP
ISSN journal
00220248
Volume
185
Year of publication
1998
Pages
601 - 604
Database
ISI
SICI code
0022-0248(1998)185:<601:RGSALI>2.0.ZU;2-R
Abstract
We report room-temperature measurements of optical gain and gain spect ra of ultraviolet emission from ZnO thin film. An optical gain of 300 cm(-1) is measured at a fluence of 3.8 mu J/cm(2). The large gain is a ttributed to the modification of the spontaneous emission rate by the dielectric photonic structure of these films. The presence of excitoni c gain is also observed in the room-temperature gain spectra. (C) 1998 Elsevier Science B.V. All rights reserved.