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Taking nonlinear effect into account, we study theoretically the transmission properties of photons in a one-dimensional coupled cavities, the cavity located at the center of the cavity array is coupled to a two-level system. By the…

Quantum Physics · Physics 2009-06-11 H. D. Liu , W. Wang , X. X. Yi

That the speed of light in free space is constant is a cornerstone of modern physics. However, light beams have finite transverse size, which leads to a modification of their wavevectors resulting in a change to their phase and group…

We consider a planar optical cavity with its main axis oriented perpendicular to the earth's local gravity field. We examine the motion of a wavepacket of light trapped within the cavity spacer under the action of gravity. Within a…

Quantum Physics · Physics 2019-04-24 Maxime Richard

We experimentally demonstrate the elementary case of electromagnetically induced transparency (EIT) with a single atom inside an optical cavity probed by a weak field. We observe the modification of the dispersive and absorptive properties…

Photons are fundamental excitations of the electromagnetic field and can be captured in cavities. For a given cavity with a certain size, the fundamental mode has a fixed frequency {\it f} which gives the photons a specific "color". The…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. Sandberg , C. M. Wilson , F. Persson , G. Johansson , V. Shumeiko , T. Bauch , T. Duty , P. Delsing

We demonstrate nonreciprocal control of the speed of light by sending a microwave pulse through a cavity magnonics device. In contrast to reciprocal group velocity controlled by conventional electromagnetically induced transparency (EIT)…

Optics · Physics 2025-02-18 Jiguang Yao , Chenyang Lu , Xiaolong Fan , Desheng Xue , Greg E. Bridges , C. -M. Hu

A cold atomic ensemble suits well for optical quantum memories, and its entanglement with a single photon forms the building block for quantum networks that give promise for many revolutionary applications. Efficiency and lifetime are among…

Quantum Physics · Physics 2021-03-10 Xu-Jie Wang , Sheng-Jun Yang , Peng-Fei Sun , Bo Jing , Jun Li , Ming-Ti Zhou , Xiao-Hui Bao , Jian-Wei Pan

This chapter introduces cavity-based light-matter quantum interfaces, with a single atom or ion in strong coupling to a high-finesse optical cavity. We discuss the deterministic generation of indistinguishable single photons from these…

Quantum Physics · Physics 2015-02-25 Axel Kuhn

Optical nonlinearities offer unique possibilities for the control of light with light. A prominent example is electromagnetically induced transparency (EIT) where the transmission of a probe beam through an optically dense medium is…

Optical cavities, e.g. as used in organic polariton experiments, often employ low finesse mirrors or plasmonic structures. The photon lifetime in these setups is comparable to the timescale of the nuclear dynamics governing the…

Chemical Physics · Physics 2020-12-18 Eric Davidsson , Markus Kowalewski

The propagation of a probe laser field in a cavity optomechanical system with a Bose-Einstein condensate is studied. The transmission properties of the system are investigated and it is shown that the group velocity of the probe pulse field…

Quantum Gases · Physics 2016-02-17 S. Hamide Kazemi , Saeed Ghanbari , Mohammad Mahmoudi

Experiments done in the early 1990's produced a surprising result: that single photons pass through a photonic tunnel barrier with a group velocity faster than the vacuum speed of light. Subsequent experiments with classical pulses have…

Quantum Physics · Physics 2015-05-13 Herbert G. Winful

We report on experimental evidences of the preservation of energy-time entanglement for extraordinary plasmonic light transmission through sub-wavelength metallic hole arrays, and for long range surface plasmon polaritons. Plasmons are…

Quantum Physics · Physics 2013-01-22 Sylvain Fasel , Nicolas Gisin , Hugo Zbinden , Daniel Erni , Esteban Moreno , Frank Robin

The radiative lifetime of molecules or atoms can be increased by placing them within a tuned conductive cavity that inhibits spontaneous emission. This was examined as a possible means of enhancing three-body, singlet-based upconversion,…

Atomic and Molecular Clusters · Physics 2017-04-11 Michael D. LaCount , Mark T. Lusk

We propose a novel configuration that utilizes electromagnetically induced transparency (EIT) to tailor a fiber mode propagating inside a thin optical fiber and coherently control its dispersion properties to drastically reduce the group…

Quantum Physics · Physics 2009-11-07 Anil K. Patnaik , J. Q. Liang , K. Hakuta

We experimentally investigate the transient dynamics of an optical cavity field interacting with large ion Coulomb crystals in a situation of electromagnetically induced transparency (EIT). EIT is achieved by injecting a probe field at the…

Quantum Physics · Physics 2018-04-04 Magnus Albert , Aurélien Dantan , Michael Drewsen

By integrating the techniques of laser cooling and trapping with those of cavity quantum electrodynamics (QED), single Cesium atoms have been trapped within the mode of a small, high finesse optical cavity in a regime of strong coupling.…

Quantum Physics · Physics 2009-10-31 J. Ye , D. W. Vernooy , H. J. Kimble

The non-equilibrium-steady state (NEST) for photons in a cavity is investigated theoretically. The NEST is caused by different parts of the cavity being at distinct temperatures or by temperature gradients. By using a rate equation based on…

Optics · Physics 2014-05-29 Felix Rüting , Christoph Weiss

We present a mechanism of energy concentration in a system composed by an optical cavity and a large number of strongly confined atoms, which cannot be described in the rotating wave approximation. The mechanism consists in the emission of…

Quantum Physics · Physics 2011-07-13 Almut Beige , Antonio Capolupo , Andreas Kurcz , Emilio Del Giudice , Giuseppe Vitiello

In electromagnetically-induced transparency (EIT), the absorption of a probe beam is greatly reduced due to destructive interference between two dressed atomic states produced by a strong laser beam. Here we show that a similar reduction in…

Quantum Physics · Physics 2009-11-13 J. D. Franson , S. M. Hendrickson