We measured the thermal resistance (R=20.1 K/W) and the electrical power dependence of the electronic temperature (R-e=27.0 K/W) of THz quantum-cascade lasers (QCLs) with bound-to-continuum active region scheme in the lattice temperature range of 30-100 K. This information, obtained from the analysis of microprobe photoluminescence spectra for QCLs operating at 2.5 THz, gives an electron-lattice energy relaxation rate (0.1 ps(-1)) similar to 50 times lower than THz QCLs with resonant-phonon active region scheme.
Autori: | |
Titolo: | Electron lattice coupling in bound-to-continuum THz quantum cascade lasers |
Rivista: | |
Data di pubblicazione: | 2006 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1063/1.2211301 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
---|---|---|---|---|
28-APL_THZ QCL Tredic_2006.pdf | Versione editoriale | Tutti i diritti riservati | Open Access Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.