Journal ArticleDOI
Four-wave mixing via electron spin coherence in a quantum well waveguide
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TLDR
In this paper, the four-wave mixing in a double-V scheme via robust electron spin coherence in semiconductor quantum wells was analyzed, and the results demonstrated that the electromagnetically induced gain loss, the electromagnetic induced absorption and superluminal propagation phenomena may be realized in quantum quantum wells at room temperatures.About:
This article is published in Physics Letters A.The article was published on 2005-06-06. It has received 74 citations till now. The article focuses on the topics: Quantum well & Coherence (physics).read more
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Controllable optical bistability in a four-subband semiconductor quantum well system
TL;DR: In this article, an optical bistability (OB) behavior based on intersubband transitions in asymmetric double quantum wells (QWs) where tunneling-induced quantum inference can be observed was studied.
Journal ArticleDOI
Ultraslow bright and dark solitons in semiconductor quantum wells
TL;DR: In this paper, the authors studied the low-intensity light pulse propagation through an asymmetric double quantum well via Fano-type interference based on intersubband transitions and showed the generation of ultraslow bright and dark optical solitons in this system.
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Phase control of optical bistability and multistability via spin coherence in a quantum well waveguide
TL;DR: In this paper, the influence of spin coherence on the optical bistability and multistability was investigated in a GaAs quantum well waveguide coupled by orthogonally polarized optical fields.
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Coherent control of optical bistability in tunnel-coupled double quantum wells
Jia-Hua Li,Jia-Hua Li +1 more
TL;DR: In this article, the authors analyzed the optical bistability behavior of an asymmetric coupled-quantum well (CQW) driven coherently by a probe laser field and a control laser field by means of a unidirectional ring cavity.
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Goos-Hänchen shifts due to spin-orbit coupling in the carbon nanotube quantum dot nanostructures.
TL;DR: The findings show that due to the presence of spin-orbit coupling, the maximum negative and positive shifts can be realized by modifying the absorption and dispersion properties of the intracavity medium.
References
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Journal ArticleDOI
Electromagnetically Induced Transparency
TL;DR: Electromagnetic induced transparency is a technique for eliminating the effect of a medium on a propagating beam of electromagnetic radiation EIT may also be used, but under more limited conditions, to eliminate optical self-focusing and defocusing and to improve the transmission of laser beams through inhomogeneous refracting gases and metal vapors, as figure 1 illustrates.
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Electromagnetically induced transparency
TL;DR: In this paper, the basic physical ideas behind electromagnetically induced transparency (EIT) are elucidated and the relation of EIT to other processes involving laser-induced atomic coherence, such as coherent population trapping, coherent adiabatic population transfer and lasing without inversion, is discussed.
Journal ArticleDOI
Ultraslow optical solitons in a cold four-state medium.
TL;DR: It is demonstrated, both analytically and numerically, that both bright and dark ultraslow optical solitons can occur in such a highly resonant medium with remarkable propagation characteristics.
Journal ArticleDOI
Room-Temperature Spin Memory in Two-Dimensional Electron Gases
J. M. Kikkawa,I. P. Smorchkova,I. P. Smorchkova,Nitin Samarth,Nitin Samarth,David D. Awschalom,David D. Awschalom +6 more
TL;DR: In this paper, the time-resolved Kerr reflectivity of two-dimensional electron gases in II-VI semiconductors provides a direct measure of electron spin precession and relaxation over a temperature range from 4 to 300 kelvin.
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Highly efficient four-wave mixing in double- Λ system in ultraslow propagation regime
Ying Wu,Ying Wu,Xiaoxue Yang +2 more
TL;DR: In this article, a time-dependent analysis of four-wave mixing in an ultraslow-propagation regime was performed and the authors obtained the analytical expressions of pulsed probe laser, FWM-generated pulse, phase shifts and absorption coefficients, group velocities, and FWM efficiency.