NANOSECOND PUMP-AND-PROBE STUDY OF WURTZITE GAN

Authors
DEGUCHI T AZUHATA T SOTA T CHICHIBU S SARUKURA N OHTAKE H YAMANAKA T NAKAMURA S
Citation
T. Deguchi et al., NANOSECOND PUMP-AND-PROBE STUDY OF WURTZITE GAN, Materials science & engineering. B, Solid-state materials for advanced technology, 50(1-3), 1997, pp. 180-182
Citations number
14
Journal title
Materials science & engineering. B, Solid-state materials for advanced technology → ACNP
ISSN journal
09215107
Volume
50
Issue
1-3
Year of publication
1997
Pages
180 - 182
Database
ISI
SICI code
0921-5107(1997)50:1-3<180:NPSOWG>2.0.ZU;2-3
Abstract
We present a nanosecond pump-and-probe optical study of wurtzite GaN u nder the excitation condition that the carrier-longitudinal optical ph onon scattering does not contribute to the energy relaxation process. The delay time after which the isothermal condition is achieved is fou nd to be similar to 50 ns. This comes from both the phonon structure i n GaN and the fact that the carrier cooling depends on excess kinetic energies of carriers. (C) 1997 Elsevier Science S.A.