Stationary light pulses in cold atomic media and without Bragg gratings

Yen Wei Lin, Wen Te Liao, Thorsten Peters, Hung Chih Chou, Jian Siung Wang, Hung Wen Cho, Pei Chen Kuan, Ite A. Yu

研究成果: Article同行評審

107 引文 斯高帕斯(Scopus)

摘要

We study the creation of stationary light pulses (SLPs), i.e., light pulses without motion, based on the effect of electromagnetically induced transparency with two counterpropagating coupling fields in cold atoms. We show that the Raman excitations created by counterpropagating probe and coupling fields prohibit the formation of SLPs in media of cold and stationary atoms such as laser-cooled atom clouds, Bose condensates or color-center crystals. A method is experimentally demonstrated to suppress these Raman excitations and SLPs are realized in laser-cooled atoms. Furthermore, we report the first experimental observation of a bichromatic SLP at wavelengths for which no Bragg grating can be established. Our work advances the understanding of SLPs and opens a new avenue to SLP studies for few-photon nonlinear interactions.

原文English
文章編號213601
期刊Physical review letters
102
發行號21
DOIs
出版狀態Published - 2009 五月 26

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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