Published April 1, 1996
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Journal Article
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Four-wave mixing and generation of terahertz radiation in an alternating-strain coupled quantum-well structure
- Creators
- Paiella, Roberto
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Vahala, Kerry J.
Chicago
Abstract
We propose a scheme for exciting steady-state tunneling oscillations of an electronic wave packet in a semiconductor coupled quantum-well structure with strain of the opposite polarity in the two wells. A detailed study of the four-wave mixing process in this structure is then presented, based on the density matrix formalism. Our results show that a resonance peak is introduced in the four-wave mixing frequency response at the tunneling frequency, leading to a significant enhancement in the wavelength conversion efficiency for low temperature operation. Furthermore, we consider this structure under the same excitation condition as a potential source of coherent radiation in, the terahertz frequency band.
Additional Information
© Copyright 1996 IEEE. Reprinted with permission. Manuscript received August 28, 1995; revised December 11, 1995. This work was supported by the Office of Naval Research (N00014-91-5-1524) and the National Science Foundation (ECS-9412862).Files
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- Eprint ID
- 9573
- Resolver ID
- CaltechAUTHORS:PAIieeejqe96
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