Interband tunneling depopulation in type-II InAs/GaSb cascade laser heterostructure

✍ Scribed by Mikhail V. Kisin; Michael A. Stroscio; Serge Luryi; Gregory Belenky

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 151 KB
• Volume: 10
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/s1386-9477(01)00151-5

✦ Synopsis

An exact analytical representation has been obtained for electron eigenstates in the full isotropic 8-band Kane model and applied to calculate the depopulation rate of the lower lasing state in the active region of a type-II intersubband cascade laser. We show that interband tunneling rate takes its maximum value when the depopulated states belong to the upper of the coupled electron-and hole-like subbands in the "leaky window" of the broken-gap InAs=GaSb heterostructure.