scholarly journals Coherent Optical Field Manipulation and Optical Information Processing Based on Electromagnetically-Induced Transparency Effect in Pr3+:Y2SiO5 Crystal

2018 ◽  
Vol 8 (7) ◽  
pp. 1179
Author(s):  
Jianji Liu ◽  
Zhixiang Li ◽  
Hongming Fan ◽  
Guoquan Zhang
Keyword(s):  
Information Processing ◽  
Quantum Information Processing ◽  
Electromagnetically Induced Transparency ◽  
Polarization State ◽  
Optical Signal ◽  
Holographic Grating ◽  
Light Fields ◽  
Atomic Coherence ◽  
Induced Transparency ◽  
Coherent Manipulation

We reviewed the recent progress in coherent manipulation on light fields based on the electromagnetically-induced transparency (EIT) effect in Pr3+-doped Y2SiO5 crystal. The results show that, on one hand, the atomic coherence grating, formed when the light pulse is stored in Pr3+:Y2SiO5 crystal under the EIT condition has similar properties to the traditional holographic grating. On the other hand, the atomic coherence grating has its own unique characteristics that are different from those of traditional holographic grating. The EIT-induced nonlinearity and atomic coherence gratings can be used to manipulate the amplitude, the phase and the polarization state of light fields; therefore, they are of important applications for optical signal processing, quantum information processing and imaging processing.

scholarly journals Controllable Optical Properties of Multiple Electromagnetically Induced Transparency in Gaseous Atomic Media

2019 ◽  
Vol 29 (1) ◽  
pp. 1 ◽  
Author(s):  
Bang Nguyen Huy ◽  
Doai Le Van ◽  
Khoa Dinh Xuan
Keyword(s):  
Optical Properties ◽  
Optical Communication ◽  
Optical Bistability ◽  
Quantum Information Processing ◽  
Electromagnetically Induced Transparency ◽  
Kerr Nonlinearity ◽  
Optical Signal ◽  
Point Of View ◽  
Experimental Point ◽  
Induced Transparency

The advent of electromagnetically induced transparency (EIT) offered a new coherent material with exotic and controllable optical properties. Although, studies on single-EIT are described in detail for single-EIT, however, extension from single- to multi- EIT is currently of current interest due to it gains advantages in multi-channel optical communication, waveguides for optical signal processing and multi-channel quantum information processing. In this work, we review recent research works concerning multi-EIT and some related applications, as controlling group velocity of light, giant Kerr nonlinearity, optical bistability. A special attention of the review also gives for analytical interpretations of EIT spectrum, its dispersion and related applications such as EIT enhanced Kerr nonlinearity and optical bistability to give physics insight. From experimental point of view, a latest development for measuring multi-EIT spectrum and its dispersion in hot medium is presented and compared to theoretical analytical representations.

scholarly journals Electromagnetically Induced Transparency in Media with Rydberg Excitons 2: Cross-Kerr Modulation

Entropy ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 160 ◽  
Author(s):  
David Ziemkiewicz ◽  
Sylwia Zielińska - Raczyńska
Keyword(s):  
Quantum Information ◽  
Solid State ◽  
Phase Shift ◽  
Cuprous Oxide ◽  
Quantum Information Processing ◽  
Electromagnetically Induced Transparency ◽  
Optimum Conditions ◽  
Third Order ◽  
All Optical ◽  
Induced Transparency

By mapping photons into the sample of cuprous oxide with Rydberg excitons, it is possible to obtain a significant optical phase shift due to third-order cross-Kerr nonlinearities realized under the conditions of electromagnetically induced transparency. The optimum conditions for observation of the phase shift over π in Rydberg excitons media are examined. A discussion of the application of the cross-phase modulations in the field of all-optical quantum information processing in solid-state systems is presented.

scholarly journals Optical π phase shift created with a single-photon pulse

2016 ◽  
Vol 2 (4) ◽  
pp. e1600036 ◽  
Author(s):  
Daniel Tiarks ◽  
Steffen Schmidt ◽  
Gerhard Rempe ◽  
Stephan Dürr
Keyword(s):  
Phase Shift ◽  
Light Pulse ◽  
Light Field ◽  
Quantum Information Processing ◽  
Single Photon ◽  
Electromagnetically Induced Transparency ◽  
Logic Gate ◽  
Quantum Logic Gate ◽  
Photon Pulse ◽  
Induced Transparency

A deterministic photon-photon quantum logic gate is a long-standing goal. Building such a gate becomes possible if a light pulse containing only one photon imprints a phase shift of π onto another light field. We experimentally demonstrate the generation of such a π phase shift with a single-photon pulse. A first light pulse containing less than one photon on average is stored in an atomic gas. Rydberg blockade combined with electromagnetically induced transparency creates a phase shift for a second light pulse, which propagates through the medium. We measure the π phase shift of the second pulse when we postselect the data upon the detection of a retrieved photon from the first pulse. This demonstrates a crucial step toward a photon-photon gate and offers a variety of applications in the field of quantum information processing.

scholarly journals Storage, Splitting, and Routing of Optical Peregrine Solitons in a Coherent Atomic System

2021 ◽  
Vol 9 ◽  
Author(s):  
Chong Shou ◽  
Guoxiang Huang
Keyword(s):  
Information Processing ◽  
High Efficiency ◽  
Atomic System ◽  
Electromagnetically Induced Transparency ◽  
Propagation Loss ◽  
Optical Information ◽  
Storage And Retrieval ◽  
Induced Transparency ◽  
Generation Power ◽  
Control Laser

We propose a scheme to realize the storage and retrieval of optical Peregrine solitons in a coherent atomic gas via electromagnetically induced transparency (EIT). We show that optical Peregrine solitons with very small propagation loss, ultraslow motional velocity, and extremely low generation power can be created in the system via EIT. We also show that such solitons can be stored, retrieved, split, and routed with high efficiency and fidelity through the manipulation of control laser fields. The results reported here are useful for the active control of optical Peregrine solitons and promising for applications in optical information processing and transmission.

A tailored ultra-broadband electromagnetically induced transparency metamaterial based on graphene

2021 ◽  
Author(s):  
Fenying Li ◽  
Tao Zhang ◽  
Quan-Fang Chen ◽  
Haining Ye ◽  
Xinlei Zhang ◽  
...  
Keyword(s):  
Slow Light ◽  
Electromagnetically Induced Transparency ◽  
Incidence Angle ◽  
Polarization State ◽  
Optical Switches ◽  
Optical Modulators ◽  
Low Loss ◽  
Wave Effect ◽  
Loss Index ◽  
Induced Transparency

Abstract Based on graphene, an ultra-broadband electromagnetically induced transparency (EIT) window with dynamic tunability is realized in theory. Through altering the Fermi level of graphene that can be regulated by the external voltage, the EIT window and the EIT effect, especially the slow-wave effect, can be easily adjusted. Moreover, the bandwidth of the EIT window can be changed by the incidence angle, achieving the transformation from broadband to narrowband. At the same time, by discussing the polarization state and loss index, the characteristics of polarization insensitivity and low loss are proved. Additionally, the influences of other parameters are discussed, such as the relaxation time of graphene and coupling distance. These unique features enable the designed EIT metamaterial to be masterly applied to optical switches, optical modulators, and slow-light devices.

Sign in / Sign up

Export Citation Format

Share Document