Resonant states and THz lasing in SiGe quantum well structures δ-doped with boron

Autor: M.S Kagan, I.N Yassievich
Rok vydání: 2002
Předmět:
Zdroj: Physica E: Low-dimensional Systems and Nanostructures. 13:916-919
ISSN: 1386-9477
DOI: 10.1016/s1386-9477(02)00234-5
Popis: An intense terahertz emission of stimulated character from boron-δ-doped Si/Si1−xGex/Si quantum well structures has been observed. The stimulated emission arises under strong electric fields (300– 1500 V / cm ) applied parallel to interfaces. The mechanism of population inversion is based on the formation of resonant acceptor states in strained SiGe layer.
Databáze: OpenAIRE