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Interest in magnetically induced (MI) transitions of alkali metal atoms is caused by the fact that their intensities can exceed the intensities of regular atomic transitions in a wide range of magnetic field (200 - 4000 G). The goal of this…

Atomic Physics · Physics 2024-03-01 Armen Sargsyan , David Sarkisyan , Aram Papoyan

Atomic transitions satisfying $F_e - F_g = \Delta F = \pm 2$ (where $F_e$ stands for excited and $F_g$ stands for ground state) of alkali atoms have zero probability in zero magnetic field (they are so-called "forbidden" transitions) but…

Atomic Physics · Physics 2023-05-17 Armen Sargsyan , Ara Tonoyan , Rodolphe Momier , Claude Leroy , David Sarkisyan

Atomic transitions of alkali metals for which the condition $F_e-F_g = \pm2$ is satisfied have null probability in a zero magnetic field, while a giant increase can occur when an external field is applied. Such transitions, often referred…

Atomic Physics · Physics 2021-02-03 Armen Sargsyan , Arevik Amiryan , Ara Tonoyan , Emmanuel Klinger , David Sarkisyan

The impact of the optical field polarization on the spectrum of magnetically-induced transitions, a class of transitions forbidden at zero magnetic field, is studied with a weak-probe sub-Doppler technique. The high spectral resolution of…

Atomic Physics · Physics 2025-02-19 A. Sargsyan , E. Klinger , A. Amiryan , D. Sarkisyan

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…

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 study $\Lambda$-type Electromagnetically Induced Transparency (EIT) on the Rb D2 transition in a buffer-gas-free thermal vapor cell without anti-relaxation coating. Experimental data show distinguished features of velocity-selective…

Atomic Physics · Physics 2020-07-02 L. Ma , G. Raithel

It has recently been demonstrated that magnetically induced (MI) transitions, a class of transitions forbidden at zero magnetic field, of the Cs 6$^2$S$_{1/2} \rightarrow 6^2$P$_{3/2}$ (D$_2$) line, exhibit promising features for…

Atomic Physics · Physics 2026-05-13 Armen Sargsyan , Arevik Amiryan , Emmanuel Klinger , David Sarkisyan

The probabilities of atomic transitions $F_e - F_g = \pm 2$ between a ground $F_g$ and an excited $F_e$ level of $D_2$ line of any alkali metal atom are zero when no external magnetic field is applied. In an external magnetic field in the…

Atomic Physics · Physics 2022-03-23 Armen Sargsyan , Ara Tonoyan , Rodolphe Momier , Claude Leroy , David Sarkisyan

We have studied the phenomenon of electromagnetically induced transparency (EIT) of 87Rb vapor with a buffer gas in a magnetic field at room temperature. It is found that the spectral lines caused by the velocity selective optical pump…

Atomic Physics · Physics 2017-03-09 Cheng Hong , Wang Han-mu , Zhang Shan-Shan , Xin Pei-Pei , Luo Jun , Liu Hong-Ping

The electromagnetically induced transparency (EIT) observations in two $\Lambda$-systems of $^{87}Rb$ atom, $|5^{2}S_{1/2} F=1\rangle \rightarrow |5^{2}P_{3/2} F'=1\rangle \leftarrow |5^{2}S_{1/2} F=2\rangle$ and $|5^{2}S_{1/2} F=1\rangle…

Atomic Physics · Physics 2018-09-26 Charu Mishra , A. Chakraborty , A. Srivastava , S. K. Tiwari , S. P. Ram , V. B. Tiwari , S. R. Mishra

Magnetically induced (MI) transitions (F${}_{g}$ = 1 $\rightarrow$ F${}_{e}$= 3) of ${}^{87}$Rb D${}_{2}$ line are among the most promising atomic transitions for applications in laser physics. They reach their maximum intensity in the…

Atomic Physics · Physics 2023-05-10 Ara Tonoyan , Armen Sargsyan , Rodolphe Momier , Claude Leroy , David Sarkisyan

In this paper, we theoretically and experimentally demonstrate a three dimensional metamaterial that can motivate electromagnetic induced transparency (EIT) by using circular polarized wave as stimulations. The unit cell consists of a pair…

Classical Physics · Physics 2017-01-25 Hai Lin , Dong Yang , Song Han , Yangjie Liu , Helin Yang

Electromagnetically induced transparency (EIT) is a well-known phenomenon due in part to its applicability to quantum devices such as quantum memories and quantum gates. EIT is commonly modeled with a three-level lambda system due to the…

Quantum Physics · Physics 2022-07-21 Saesun Kim , Alberto M. Marino

Magnetic field-induced giant modification of probabilities for seven components of 6S1/2 (Fg=3) - 6P3/2 (Fe=5) transition of Cs D2 line forbidden by selection rules is observed experimentally for the first time. For the case of excitation…

Atomic Physics · Physics 2015-06-18 A. Sargsyan , A. Tonoyan , G. Hakhumyan , A. Papoyan , E. Mariotti , D. Sarkisyan

We demonstrate---experimentally and theoretically---that resonances obtained in electromagnetically induced transparency (EIT) can be both bright and dark. The experiments are done using magnetic sublevels of a hyperfine transition in the…

Atomic Physics · Physics 2018-11-14 Mangesh Bhattarai , Vineet Bharti , Vasant Natarajan , Armen Sargsyan , David Sarkisyan

We experimentally investigate electromagnetically-induced transparency (EIT) created on an inhomogeneously broadened 5S_1/2-5P_1/2 transition in rubidium vapor using a control field of a complex temporal shape. A comb-shaped transparency…

Quantum Physics · Physics 2015-05-13 Geoff Campbell , Anna Ordog , A. I. Lvovsky

We study intensity distribution of transmission resonances under the conditions of electromagnetically induced transparency (EIT) with lin||lin configuration in 87Rb vapor. We demonstrate that for various orientations of the external…

Electromagnetically induced transparency (EIT) on atomic D$_{1}$ line of rubidium is studied using a nanometric-thin cell with atomic vapor column length in the range of L= 400 - 800 nm. It is shown that the reduction of the cell thickness…

We demonstrate ladder-type electromagnetically induced transparency (EIT) using an optical nanofiber suspended in a warm rubidium vapor. The signal and control fields are both guided along the nanofiber, which enables strong nonlinear…

Quantum Physics · Physics 2015-10-06 D. E. Jones , J. D. Franson , T. B. Pittman
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