Time-dependent approach to double-barrier quantum well oscillators

Liu, H. C.
February 1988
Applied Physics Letters;2/8/1988, Vol. 52 Issue 6, p453
Academic Journal
Microwave and millimeter-wave oscillation frequencies and efficiencies of heterojunction double-barrier resonant-tunneling structures are investigated theoretically from a time-dependent point of view. Calculations for two specific devices show that the oscillation characteristics depend strongly on the device parameters, i.e., barrier heights and widths and the well width. Results also show that oscillations in frequencies above limits predicted by a transit tunneling time consideration are less efficient, but not vanishing.


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