Abstract
The carrier intraband relaxation in CdS is studied with femtosecond time resolution using the luminescence up-conversion technique. The cooling dynamics of high-density carriers clearly show the nonequilibrium build-up of high populations of certain modes for both longitudinal optical and acoustic phonons. The acoustic-mode disturbances develop on the subpicosecond time scale and are observed as a transient reduction of the carrier energy-loss rate through the retardation of the optical-phonon decay (the effect of the ''acoustic-phonon bottleneck'').
| Original language | English |
|---|---|
| Pages (from-to) | 4728-4731 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 52 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1995 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Hot-phonon effects in femtosecond luminescence spectra of electron-hole plasmas in CdS. / Klimov, Victor I; Haring Bolivar, P.; Kurz, H.
In: Physical Review B, Vol. 52, No. 7, 1995, p. 4728-4731.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hot-phonon effects in femtosecond luminescence spectra of electron-hole plasmas in CdS
AU - Klimov, Victor I
AU - Haring Bolivar, P.
AU - Kurz, H.
PY - 1995
Y1 - 1995
N2 - The carrier intraband relaxation in CdS is studied with femtosecond time resolution using the luminescence up-conversion technique. The cooling dynamics of high-density carriers clearly show the nonequilibrium build-up of high populations of certain modes for both longitudinal optical and acoustic phonons. The acoustic-mode disturbances develop on the subpicosecond time scale and are observed as a transient reduction of the carrier energy-loss rate through the retardation of the optical-phonon decay (the effect of the ''acoustic-phonon bottleneck'').
AB - The carrier intraband relaxation in CdS is studied with femtosecond time resolution using the luminescence up-conversion technique. The cooling dynamics of high-density carriers clearly show the nonequilibrium build-up of high populations of certain modes for both longitudinal optical and acoustic phonons. The acoustic-mode disturbances develop on the subpicosecond time scale and are observed as a transient reduction of the carrier energy-loss rate through the retardation of the optical-phonon decay (the effect of the ''acoustic-phonon bottleneck'').
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U2 - 10.1103/PhysRevB.52.4728
DO - 10.1103/PhysRevB.52.4728
M3 - Article
VL - 52
SP - 4728
EP - 4731
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 7
ER -