Population-Inversion and Gain Estimates for a Semiconductor TASER

P. Harrison, R. A. Soref

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


We have investigated a solid-state design advanced (see Soref et al. in SPIE Proceedings, vol.3795, p.516, 1999) to achieve a terahertz-amplification-by-the-stimulated-emission-of-radiation (TASER). The original design was based on light-to heavy-hole intersubband transitions in SiGe/Si heterostructures. This work adapts the design to electron intersubband transitions in the more readily available GaAs/Ga1-xAlxAs material system. It is found that the electric-field induced anti-crossings of the states, derived from the first excited state with the ground states of a superlattice in the Stark-ladder regime, offers the possibility of a population inversion and gain at room temperature.
Original languageEnglish
Article number892737
Pages (from-to)153-158
Number of pages6
JournalIEEE Journal of Quantum Electronics
Issue number1
Publication statusPublished - 1 Jan 2001
Externally publishedYes


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