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Modifications of laser field assisted intersubband transitions in the coupled quantum wells due to static electric field
Author(s) -
Prasad Vinod,
Dahiya Brijender
Publication year - 2011
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201046582
Subject(s) - laser , monochromatic color , physics , quantum well , field (mathematics) , terahertz radiation , electric field , floquet theory , optoelectronics , electron , quantum , condensed matter physics , optics , quantum mechanics , mathematics , pure mathematics , nonlinear system
We consider the electron bound in the conduction band of a coupled asymmetric double quantum well (ADQW) interacting with static as well as strong monochromatic field in terahertz (THz) region. We use non‐perturbative Floquet theory to study the static field and quantum well (QW) system in the presence of strong laser fields. We show that the intersubband dynamics gets modified due to the static field. The sensitivity to the ratio of strengths of static and laser field ( E s / E 0 ) of the state populations can be used in various optoelectronic device applications.