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We demonstrate electromagnetically induced transparency (EIT) in a four-level cascade system where the upper level is a Rydberg state. The observed spectral features are sub-Doppler and can be enhanced due to the compensation of Doppler…

Rydberg blockade physics in optically dense atomic media under the conditions of electromagnetically induced transparency (EIT) leads to strong dissipative interactions between single photons. We introduce a new approach to analyzing this…

Quantum Physics · Physics 2018-06-18 Emil Zeuthen , Michael J. Gullans , Mohammad F. Maghrebi , Alexey V. Gorshkov

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…

We demonstrate electromagnetically induced transparency (EIT) in a four-level cascade-like system, where the two upper levels are Rydberg states coupled by a microwave field. A two-photon transition consisting of an off-resonant microwave…

Atomic Physics · Physics 2018-05-09 Thibault Vogt , Christian Gross , Thomas F. Gallagher , Wenhui Li

For multi-level systems in hot atomic vapors the interplay between the Doppler shift due to atom velocity and the wavenubmer mismatch between driving laser fields strongly influences transmission and absorption properties of the atomic…

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

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

Long-range Rydberg interactions, in combination with electromagnetically induced transparency (EIT), give rise to strongly interacting photons where the strength, sign, and form of the interactions are widely tunable and controllable. Such…

We present experimental results on the influence of magnetic fields and laser polarization on electromagnetically induced transparency (EIT) using Rydberg levels of $^{87}$Rb atoms. The measurements are performed in a room temperature vapor…

By coupling a probe transition to a Rydberg state using electro-magnetically induced transparency (EIT) we map the strong dipole-dipole interactions onto an optical field. We characterize the resulting cooperative optical non-linearity as a…

Quantum Physics · Physics 2010-11-08 J. D. Pritchard , D. Maxwell , A. Gauguet , K. J. Weatherill , M. P. A. Jones , C. S. Adams

This tutorial introduces the theoretical and experimental basics of Electromagnetically Induced Transparency (EIT) in thermal alkali vapors. We first introduce a brief phenomenological description of EIT in simple three-level systems of…

Quantum Physics · Physics 2023-03-22 Ran Finkelstein , Samir Bali , Ofer Firstenberg , Irina Novikova

We report on the observation of electromagnetically induced transparency (EIT) with intrinsic phase transitions in a three-level ladder system within rubidium atomic vapor. The observed abrupt transitions between low and high Rydberg…

Optics · Physics 2025-04-16 Lin Cheng , Kun Huang , Chunhui Shao , Fan Wu , Zhiyuan Xiong , Yanpeng Zhang

We study Rydberg electromagnetically induced transparency (EIT) of a cascade three-level atom involving 80$D_{5/2}$ state in a strong interaction regime employing a cesium ultracold cloud. In our experiment, a strong coupling laser couples…

Atomic Physics · Physics 2023-03-13 Yuechun Jiao , Liping Hao , Jingxu Bai , Jiabei Fan , Zhengyang Bai , Weibin Li , Jianming Zhao , Suotang Jia

Using the density matrix theory of interaction between light and matter, and relevant parameters of the relaxation rates for a six-level model, we have shown theoretically the possibility of realizing Electromagnetically Induced…

Quantum Physics · Physics 2007-05-23 Hassan Kaatuzian , Sina Mehrabadi , Ahmad Ajdarzadeh Oskouei

We predict a resonant enhancement of the nonlinear optical response of an interacting Rydberg gas under conditions of electromagnetically induced transparency. The enhancement originates from a two-photon process which resonantly couples…

Atomic-scale imaging offers a reliable tool to directly measure the movement of microscopic particles. We present a scheme for achieving a nondestructive and ultrasensitive imaging of Rydberg atoms within an ensemble of cold probe atoms.…

Atomic Physics · Physics 2022-01-26 Xiaoguang Huo , J. F. Chen , Jing Qian , Weiping Zhang

The non-linear and non-local effects in atomic Rydberg media under electromagnetically induced transparency (EIT) make it a versatile platform for fundamental studies and applications in quantum information. In this paper, we study the…

We show that the Electromagnetically Induced Transparency (EIT) is possible in a medium exhibiting Rydberg excitons and indicate the realistic parameters to perform the experiment. The calculations for a Cu$_2$O crystal are given which show…

Quantum Physics · Physics 2016-12-30 Sylwia Zielińska-Raczyńska , David Ziemkiewicz , Gerard Czajkowski

Recent experiments have realized an all-optical photon transistor using a cold atomic gas. This approach relies on electromagnetically induced transparency (EIT) in conjunction with the strong interaction among atoms excited to high-lying…

Quantum Physics · Physics 2015-10-23 Weibin Li , Igor Lesanovsky

The combination of high optical nonlinearity in the electromagnetically induced transparency (EIT) effect and strong electric dipole-dipole interaction (DDI) among the Rydberg-state atoms can lead to important applications in quantum…

Quantum Physics · Physics 2020-09-14 Shih-Si Hsiao , Ko-Tang Chen , Ite A. Yu