TY - JOUR
T1 - Suppression of optical absorption by electric-field-induced quantum interference in coupled potential wells
AU - Faist, Jérôme
AU - Capasso, Federico
AU - Hutchinson, Albert L.
AU - Pfeiffer, Loren
AU - West, Ken W.
PY - 1993
Y1 - 1993
N2 - A new quantum interference phenomenon in optical absorption is reported. This effect manifests itself in a striking suppression of the absorption coefficient as a function of the electric field concomitant with a negligible Stark shift of the transition in suitably designed coupled-quantum-well semiconductors. This phenomenon, which does not arise from a reduced overlap of the final and initial states of the transition, is shown to be caused by quantum interference between two spatially separated transitions. The basic and general nature of this mechanism could be exploited in other artificially structured materials as well.
AB - A new quantum interference phenomenon in optical absorption is reported. This effect manifests itself in a striking suppression of the absorption coefficient as a function of the electric field concomitant with a negligible Stark shift of the transition in suitably designed coupled-quantum-well semiconductors. This phenomenon, which does not arise from a reduced overlap of the final and initial states of the transition, is shown to be caused by quantum interference between two spatially separated transitions. The basic and general nature of this mechanism could be exploited in other artificially structured materials as well.
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U2 - 10.1103/PhysRevLett.71.3573
DO - 10.1103/PhysRevLett.71.3573
M3 - Article
C2 - 10055011
AN - SCOPUS:12044254665
SN - 0031-9007
VL - 71
SP - 3573
EP - 3576
JO - Physical review letters
JF - Physical review letters
IS - 21
ER -