Abstract
The laser field dependence of the linear and nonlinear intersubband optical absorption in a graded quantum well (GQW) under an applied electric field is investigated in the effective mass approximation. In our calculations, the position and the magnitude of the linear and total absorption coefficients depend on the laser parameter and electric field strength. The resonant peak of total absorption coefficient can be bleached at sufficiently high incident optical intensities. Such a dependence of the exciting optical intensity on the external field strengths in GQWs can be very useful for several potential device applications.
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Ozturk, E. Nonlinear optical absorption in graded quantum wells modulated by electric field and intense laser field. Eur. Phys. J. B 75, 197–203 (2010). https://doi.org/10.1140/epjb/e2010-00133-3
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DOI: https://doi.org/10.1140/epjb/e2010-00133-3