منابع مشابه
Optical Physics of Quantum Wells
Quantum wells are thin layered semiconductor structures in which we can observe and control many quantum mechanical effects. They derive most of their special properties from the quantum confinement of charge carriers (electrons and "holes") in thin layers (e.g 40 atomic layers thick) of one semiconductor "well" material sandwiched between other semiconductor "barrier" layers. They can be made ...
متن کاملOptical refrigeration with coupled quantum wells.
Refrigeration of a solid-state system with light has potential applications for cooling small-scale electronics and photonics. We show theoretically that two coupled semiconductor quantum wells are efficient cooling media for optical refrigeration because they support long-lived indirect electron-hole pairs. Thermal excitation of these pairs to distinct higher-energy states with faster radiativ...
متن کاملSubpicosecond excitonic optical nonlinearities in quantum wells
2014 Excitonic resonances in semiconductors are very sensitive to applied optical fields. We present here a comparison between the effects of resonant and non resonant optical excitation, creating respectively real or virtual excitons. A blue shift of the exciton line and a reduction of the oscillator strength are simultaneously observed in multiple-quantum-well-structures for the two following...
متن کاملStrong Optical Filed Intensity Improvement Introducing InGaAsP Quantum Wells in InP Nanocavity
This paper presents the optical characteristics of a quantum well doped InP nanocavity.The resonance wavelength of the nanocavity and the optical field intensity is calculated before and after presence of the quantum wells. The resulting huge filed intensity of about 1.2×108 respect to the incident field is the effect of quantum wells placed in vicinity of center of nanocavity.
متن کاملNonlinear optical spectroscopy of indirect excitons in coupled quantum wells
P. Andreakou,1 S. Cronenberger,1 D. Scalbert,1 A. Nalitov,2 N. A. Gippius,2,3 A. V. Kavokin,4,5,6 M. Nawrocki,7 J. R. Leonard,8 L. V. Butov,8 K. L. Campman,9 A. C. Gossard,9 and M. Vladimirova1 1Laboratoire Charles Coulomb, UMR 5221 CNRS/ Université de Montpellier, F-34095 Montpellier, France 2Institut Pascal, PHOTON-N2, Université Blaise Pascal, CNRS, 24 avenue des Landais, 63177 Aubière Cedex...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2016
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.94.165309