Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
60 (1992), S. 859-861
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We present self-consistent calculations of the energy levels in an asymmetric coupled quantum-well structure coupled to a CO2 laser source which is nearly resonant with an intersubband transition. Solving Schrödinger's and Poisson's equations concurrently with a set of rate equations, it is shown that intrinsic optical bistability can be achieved. The bistability arises from charge transfer and a subsequent, self-consistent shift of the energy levels which feeds back to the absorption rate. Using realistic parameters, an on-off intensity ratio of 4:1 at switching powers of a few 100 kW/cm2 is predicted at about 10-μm wavelength.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.106511
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