CO laser-induced cooling of the conduction electrons in n-InSb

Autor: L.K. Hanes, D.G. Seiler
Rok vydání: 1980
Předmět:
Zdroj: Optics Communications. 34:89-94
ISSN: 0030-4018
DOI: 10.1016/0030-4018(80)90166-2
Popis: Laser-induced cooling of the conduction electrons in n-InSb is observed for CO laser photon energies near the bandgap (229–234 meV). This cooling is caused by a new mechanism which we call cold electron photo-injection (CEPI) produced by the simultaneous application of a non-ohmic dc electric field and the CO radiation. The results show that absorption near the bandgap is strongly influenced by two acceptor levels located at ~3 and ~8 meV above the valence band edge.
Databáze: OpenAIRE