Electromagnetically induced transparency : Optics in coherent media
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In this paper, the authors consider the atomic dynamics and the optical response of the medium to a continuous-wave laser and show how coherently prepared media can be used to improve frequency conversion in nonlinear optical mixing experiments.Abstract:
Coherent preparation by laser light of quantum states of atoms and molecules can lead to quantum interference in the amplitudes of optical transitions. In this way the optical properties of a medium can be dramatically modified, leading to electromagnetically induced transparency and related effects, which have placed gas-phase systems at the center of recent advances in the development of media with radically new optical properties. This article reviews these advances and the new possibilities they offer for nonlinear optics and quantum information science. As a basis for the theory of electromagnetically induced transparency the authors consider the atomic dynamics and the optical response of the medium to a continuous-wave laser. They then discuss pulse propagation and the adiabatic evolution of field-coupled states and show how coherently prepared media can be used to improve frequency conversion in nonlinear optical mixing experiments. The extension of these concepts to very weak optical fields in the few-photon limit is then examined. The review concludes with a discussion of future prospects and potential new applications.read more
Citations
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Observing the Dynamics of Dipole-Mediated Energy Transport by Interaction Enhanced Imaging
G. Günter,H. Schempp,Martin Robert-de-Saint-Vincent,Vladislav Gavryusev,S. Helmrich,C. S. Hofmann,Shannon Whitlock,Matthias Weidemüller,Matthias Weidemüller +8 more
TL;DR: A nondestructive imaging method is demonstrated to monitor the migration of electronic excitations with high time and spatial resolution, using electromagnetically induced transparency on a background gas acting as an amplifier to determine the many-body dynamics of the energy transport.
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Manipulating the plasmon-induced transparency in terahertz metamaterials.
Zhongyang Li,Yingfang Ma,Ran Huang,Ranjan Singh,Jianqiang Gu,Zhen Tian,Jiaguang Han,Weili Zhang +7 more
TL;DR: A novel coupling scheme of planar terahertz metamaterial to tune the plasmon-induced transparency peak by physically varying the distance between the superradiant and the subradiant resonators in such a way that the transparency peak begins to disappear as the coupled resonators are brought closer than a critical separation distance.
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Efficient and long-lived quantum memory with cold atoms inside a ring cavity
Xiao-Hui Bao,Xiao-Hui Bao,Andreas Reingruber,Peter Dietrich,Jun Rui,Alexander Dück,Thorsten Strassel,Li Li,Nai-Le Liu,Bo Zhao,Jian-Wei Pan,Jian-Wei Pan +11 more
TL;DR: In this article, a quantum memory that combines high-efficiency and long lifetime is demonstrated, where a ring cavity is placed around an atomic ensemble, employing a pair of clock states, creating a long-wavelength spin wave and arranging the set-up in the gravitational direction.
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Nonlinear quantum optics mediated by Rydberg interactions.
TL;DR: By mapping the strong interaction between Rydberg excitations in ultra-cold atomic ensembles onto single photons via electromagnetically induced transparency, it is now possible to realize a medium which exhibits a strong optical nonlinearity at the level of individual photons.
Fundamentals and Applications of Slow Light
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References
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