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A $\Lambda$-system in $D_2$ line transition of the $^{87}Rb$ atom has been investigated for quantum interference effects for different configurations of coupling field. With a travelling wave coupling field (co-propagating with probe…

Atomic Physics · Physics 2018-10-17 Charu Mishra , A. Chakraborty , Vivek Singh , S. P. Ram , V. B. Tiwari , S. R. Mishra

We consider the dynamics of intracavity electromagnetically induced transparency (EIT) in an ensemble of strongly interacting Rydberg atoms. By combining the advantage of variable cavity lifetimes with intracavity EIT and strongly…

Quantum Physics · Physics 2015-12-15 G. W. Lin , Y. H. Qi , X. M. Lin , Y. P. Niu , S. Q. Gong

We present an experimental study of cavity assisted Rydberg atom electromagnetically induced transparency (EIT) using a high-finesse optical cavity ($F \sim 28000$). Rydberg atoms are excited via a two-photon transition in a ladder-type EIT…

Atomic Physics · Physics 2017-09-13 Jiteng Sheng , Yuanxi Chao , Santosh Kumar , Haoquan Fan , Jonathon Sedlacek , James P. Shaffer

Ultrathin optical fibres integrated into cold atom setups are proving to be ideal building blocks for atom-photon hybrid quantum networks. Such optical nanofibres (ONF) can be used for the demonstration of nonlinear optics and quantum…

Atomic Physics · Physics 2015-12-11 Ravi Kumar , Vandna Gokhroo , Síle Nic Chormaic

A detailed description and theoretical analysis of experiments achieving coherent coupling between an ion Coulomb crystal and an optical cavity field are presented. The various methods used to measure the coherent coupling rate between…

Quantum Physics · Physics 2015-05-30 M. Albert , J. P. Marler , P. F. Herskind , A. Dantan , M. Drewsen

We have observed CW lasing without inversion in a gas of hot rubidium atoms in an optical cavity under conditions of electromagnetically-induced transparency (EIT). The medium is pumped coherently and resonantly by a single ``coupling''…

Quantum Physics · Physics 2009-11-13 Haibin Wu , Min Xiao , J. Gea-Banacloche

We study the optical properties associated to both the polariton gap and the Bragg gap in periodic resonator-waveguide coupled system, based on the temporal coupled mode theory and the transfer matrix method. By the complex band and the…

Optics · Physics 2015-12-09 Z. Z. Liu , Q. Zhang , J. J. Xiao

The electromagnetically induced transparency (EIT) phenomenon has been investigated in a $\Lambda$-system of the $^{87}$Rb D$_1$ line in an external transverse magnetic field. Two spectroscopic cells having strongly different values of the…

We demonstrate the existence of the phenomenon of the inverse electromagnetically induced transparency (IEIT) in an opto mechanical system consisting of a nanomechanical mirror placed in an optical cavity. We show that two weak…

Quantum Physics · Physics 2015-06-15 G. S. Agarwal , Sumei Huang

We experimentally demonstrate the Talbot effect resulting from the repeated self-reconstruction of a spatially intensity-modulated probe field under the Fresnel near-field regime. By launching the probe beam into an optically induced atomic…

We offer a general treatment of electromagnetically induced transparency (EIT) in a five level system consisting of four metastable ground states. Two additional RF/microwave fields coherently couple the two ground states of the standard…

Quantum Physics · Physics 2009-11-13 James Owen Weatherall , Christopher P. Search

We investigate the dynamics of a generic interacting many-body system under conditions of electromagnetically induced transparency (EIT). This problem is of current relevance due to its connection to non-linear optical media realized by…

A system comprising a $\Lambda$-type or V-type atom interacting with two radiation fields exhibits, during its dynamical evolution, interesting optical phenomena such as electromagnetically-induced transparency (EIT) and a variety of…

Quantum Physics · Physics 2016-06-22 Pradip Laha , B. Sudarsan , S. Lakshmibala , V. Balakrishnan

We report the phenomena of electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIA) using two identical beams in rubidium atomic vapor. The {\Lambda}-type EIT configuration is employed to examine the…

Atomic Physics · Physics 2025-03-03 Lin Cheng , Zhiyuan Xiong , Shuaishuai Hou , Yijia Sun , Chenyu Dong , Fan Wu , Kun Huang

We present an investigation of the coherent coupling of various transverse field modes of an optical cavity to ion Coulomb crystals. The obtained experimental results, which include the demonstration of identical collective coupling rates…

Quantum Physics · Physics 2015-05-14 A. Dantan , M. Albert , J. P. Marler , P. F. Herskind , M. Drewsen

Isolating neutral and charged particles from the environment is essential in precision experiments. For decades, this has been achieved by trapping ions with radio-frequency (rf) fields and neutral particles with optical fields. Recently,…

Atomic Physics · Physics 2021-05-05 Tobias Schaetz

We demonstrate a classical analogue of electromagnetically induced transparency (EIT) in a highly flexible planar terahertz metamaterial (MM) comprised of three-gap split ring resonators. The keys to achieve EIT in this system are the…

The electromagnetically induced transparency (EIT) phenomenon in earlier universe is considered. We evaluated the elementary processes of the single scattering of photon on the hydrogen atom with the purpose of their use in the tasks of the…

Atomic Physics · Physics 2022-02-10 D. Solovyev , V. K. Dubrovich

Light-induced control of ions within small Coulomb crystals is investigated. By intense intracavity optical standing wave fields, subwavelength localization of individual ions is achieved for one-, two-, and three-dimensional crystals.…

Electromagnetically induced transparency (EIT) in a ladder system involving a Rydberg level is known to yield giant optical nonlinearities for the probe field, even in the few-photon regime. This enhancement is due to the strong…

Quantum Physics · Physics 2016-12-21 A. Grankin , E. Brion , R. Boddeda , S. Ćuk , I. Usmani , A. Ourjoumtsev , P. Grangier