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In this paper, a new counter-propagation waves coupling mechanism is proposed which is expected to realize an electromagnetically induced transparency (EIT)-like effect. Comparing the travelling waves coupling mechanism (see J. Mod. Opt.…

Optics · Physics 2023-01-11 Chaoying Zhao

Cavities with extremely narrow linewidth of 10-100 Hz are required for realizing frequency dependent squeezing to enable gravitational wave detectors to surpass the free mass standard quantum limit over a broad frequency range.…

Quantum Physics · Physics 2015-06-18 Jiayi Qin , Chunnong Zhao , Yiqiu Ma , Xu Chen , Li Ju , David G. Blair

Electro-optic frequency combs with tooth spacings as low as 100 Hz were employed to probe electromagnetically induced transparency (EIT) and hyperfine pumping in rubidium and potassium vapor cells. From the potassium EIT transition we were…

Atomic Physics · Physics 2018-12-27 David A. Long , Adam J. Fleisher , Joseph T. Hodges

Cavity linewidth narrowing via double-dark resonances has been experimentally observed using the 87Rb Zeeman splitting sublevels. With the steep dispersion led by the interacting dark resonances in the tripodtype electromagnetically induced…

Optics · Physics 2014-03-31 Kang Ying , Yueping Niu , Dijun Chen , Haiwen Cai , Ronghui Qu

A novel mechanism to realize dynamically tunable electromagnetically induced transparency (EIT) analogue in the terahertz (THz) regime is proposed. By putting the electrically controllable monolayer graphene under the dark resonator, the…

Optics · Physics 2017-12-18 Tingting Liu

We explain the phenomena of electromagnetically induced transparency (EIT) of a weak probe field and tunable Fano resonances in hybrid optomechanics. The system of study consists of a two-level atom coupled to a single-mode field of an…

Quantum Physics · Physics 2015-06-19 Muhammad Javed Akram , Fazal Ghafoor , Farhan Saif

We consider the dynamical behavior of a nanomechanical mirror in a high-quality cavity under the action of a coupling laser and a probe laser. We demonstrate the existence of the analog of electromagnetically induced transparency (EIT) in…

Quantum Physics · Physics 2015-05-14 G. S. Agarwal , Sumei Huang

The absorption of photons in a three-level atom can be controlled and manipulated by applying a coherent drive at one of the atomic transitions. The situation where the absorption is fully canceled, and the atom thus has been turned…

Quantum Physics · Physics 2020-12-01 Andreas Ask , Yao-Lung L. Fang , Anton Frisk Kockum

A scheme for getting a tunable ultranarrow linewidth of a cavity due to an embedded four-level atomic medium with double-dark resonances is proposed. It is shown that the steep dispersion induced by double-dark resonances in the…

Quantum Physics · Physics 2015-05-13 Y. D. Peng , L. L. Jin , Y. P. Niu , S. Q. Gong

Quantum noise suppression and phase-sensitive modulation of continuously variable in vacuum and squeezed fields in a hybrid resonant cavity system are investigated theoretically. Multiple dark windows similar to electromagnetic induction…

Quantum Physics · Physics 2023-08-09 Ke Di , Shuai Tan , Liyong Wang , Anyu Cheng , Xi Wang , Yuming Sun , Junqi Guo , Yu Liu , Jiajia Du

We have studied electromagnetically induced transparency (EIT) in diatomic cesium molecules in a vapor cell by using tunable diode lasers. We have observed a sub-natural Lambda-resonance in an absorption molecular band at different cesium…

We investigate the controllability of electromagnetically induced transparency (EIT) and Fano resonances in hybrid optomechanical system which is composed of cigar-shaped Bose-Einstein condensate (BEC) trapped inside high-finesse…

Quantum Physics · Physics 2015-04-28 Kashif Ammar Yasir , Wu-Ming Liu

We construct the electromagnetically induced transparency (EIT) by dynamically coupling a superradiant state with a subradiant state. The superradiant and subradiant states with enhanced and inhibited decay rates act as the excited and…

Atomic Physics · Physics 2017-04-05 Wei Feng , Da-Wei Wang , Han Cai , Shi-Yao Zhu , Marlan O. Scully

We present a quantum multi-modal treatment describing Electromagnetically Induced Transparency (EIT) as a mechanism for storing continuous variable quantum information in light fields. Taking into account the atomic noise and decoherences…

Quantum Physics · Physics 2007-07-10 G. Hétet , A. Peng , M. T. Johnsson , J. J. Hope , P. K. Lam

In this paper, a new structure is proposed which is expected to realize dual-band electromagnetically induced transparency (EIT)-like effect in terahertz spectrum. It can be regarded as a metamaterial of grating-like elements composed of…

Optics · Physics 2022-01-12 Chaoying Zhao , Jiahao Hu

We consider an optomechanical cavity made by two moving mirrors which contains a Kerr-down conversion nonlinear crystal. We show that the coherent oscillations of the two mechanical oscil- lators can lead to splitting in the…

Quantum Physics · Physics 2013-11-20 S. Shahidani , M. H. Naderi , M. Soltanolkotabi

A nondegenerate four-level N-type scheme was experimentally implemented to observe electromagnetically induced transparency (EIT) at the $^{87}$Rb D$_{2}$ line. Radiations of two independent external-cavity semiconductor lasers were used in…

Quantum Physics · Physics 2009-11-06 V. M. Entin , I. I. Ryabtsev , A. E. BoguslavskiI , I. M. Beterov

We demonstrate experimentally the delay of squeezed light and entanglement using Electromagnetically Induced Transparency (EIT) in a rubidium vapour cell. We perform quadrature amplitude measurements of the probe field and find no…

Quantum Physics · Physics 2009-11-13 G. Hétet , B. C. Buchler , O. Glöckl , M. T. L. Hsu , A. M. Akulshin , H. -A. Bachor , P. K. Lam

The interrogation of an ultra-narrow clock transition of a single trapped ion for optical frequency metrology requires a laser stabilized to a couple of Hz per second with a linewidth of the same order of magnitude. Today, lasers in the…

Optics · Physics 2015-05-14 Didier Guyomarc'H , Gaëtan Hagel , Cédric Zumsteg , Martina Knoop

We analyze the two-photon linewidth of the recently proposed adiabatic transfer technique for ``stopping'' of light using electromagnetically induced transparency (EIT). We shown that a successful and reliable transfer of excitation from…

Quantum Physics · Physics 2009-11-07 Claudia Mewes , Michael Fleischhauer