Bragg-matching characterization of atomic coherence gratings in an electromagnetically induced transparency solid with a confocal scheme

2012 ◽  
Vol 285 (3) ◽  
pp. 277-280 ◽  
Author(s):  
Zhaohui Zhai ◽  
Yanfei Tu ◽  
Yiling Dou ◽  
Jingjun Xu ◽  
Guoquan Zhang
Keyword(s):  
Electromagnetically Induced Transparency ◽  
Atomic Coherence ◽  
Induced Transparency

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.

GENERATION OF NARROW-BANDWIDTH SINGLE PHOTONS USING ELECTROMAGNETICALLY INDUCED TRANSPARENCY IN ATOMIC ENSEMBLES

2007 ◽  
Vol 05 (01n02) ◽  
pp. 51-62 ◽  
Author(s):  
P. WALTHER ◽  
M. D. EISAMAN ◽  
A. ANDRÉ ◽  
F. MASSOU ◽  
M. FLEISCHHAUER ◽  
...  
Keyword(s):  
Quantum Information ◽  
Single Photon ◽  
Electromagnetically Induced Transparency ◽  
Single Photons ◽  
Atomic Coherence ◽  
Linear Optics ◽  
Directional Emission ◽  
Narrow Bandwidth ◽  
Induced Transparency ◽  
Storage Times

We review recent experiments [M. D. Eisaman et al., Nature438 (2005) 837] demonstrating the generation of narrow-bandwidth single photons using a room-temperature ensemble of 87 Rb atoms. Our method involves creation of an atomic coherence via Raman scattering and projective measurement, followed by the coherent transfer of this atomic coherence onto a single photon using electromagnetically induced transparency (EIT). The single photons generated using this method are shown to have many properties necessary for quantum information protocols, such as narrow bandwidths, directional emission, and controllable pulse shapes. The narrow bandwidths of these single photons (~MHz), resulting from their matching to the EIT resonance (~MHz), allow them to be stored in narrow-bandwidth quantum memories. We demonstrate this by using dynamic EIT to store and retrieve the single photons in a second ensemble for storage times up to a few microseconds. We also describe recent improvements to the single-photon fidelity compared to the work by M. D. Eisaman in Nature438 (2005) 837. These techniques may prove useful in quantum information applications such as quantum repeaters, linear-optics quantum computation, and daytime free-space quantum communication.

Characterization of electromagnetically induced transparency in Rydberg state of 87Rb

2015 ◽  
Author(s):  
Hyo Min Kwak ◽  
Taek Jeong ◽  
Yoon-Seok Lee ◽  
No-Weon Kang ◽  
Seung Kwan Kim ◽  
...  
Keyword(s):  
Rydberg State ◽  
Electromagnetically Induced Transparency ◽  
Induced Transparency
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