Citation
N. Sekine et al., Excitation process of two-dimensional plasmons excited by femtosecond laser pulses, MICROEL ENG, 47(1-4), 1999, pp. 289-292
Citations number
15
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
MICROELECTRONIC ENGINEERING
ISSN journal
01679317
→ ACNP
Volume
47
Issue
1-4
Year of publication
1999
Pages
289 - 292
Database
ISI
SICI code
0167-9317(199906)47:1-4<289:EPOTPE>2.0.ZU;2-Y
Abstract
We have investigated terahertz (THz) radiation from two-dimensional (2D) fr
ee carrier plasma oscillations in selectively doped GaAs/AlGaAs single quan
tum wells by time-resolved THz emission spectroscopy. By varying the excita
tion wavelength and power, we are able to discriminate between the plasmon
excitations due to coherent instantaneous polarizations and incoherent curr
ent surge/impulsive heating process.