HKUST Library Institutional Repository Banner

HKUST Institutional Repository >
Physics >
PHYS Journal/Magazine Articles >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/6620
Title: Optical precursors with electromagnetically induced transparency in cold atoms
Authors: Wei, Dong
Chen, Jiefei
Loy, Michael M.
Wong, George K. L.
Du, Shengwang
Keywords: Optical precursors
Cold atoms
Electromagnetically induced transparency
Issue Date: 28-Aug-2009
Citation: Physical review letters, v. 103, iss. 9, 093602, 28 August 2009
Abstract: We report the observation of Sommerfeld-Brillouin optical precursors generated from a long square-modulated laser pulse propagating through a cold atomic ensemble with electromagnetically induced transparency. The optical depth (α0L) of the medium can be varied from 0 up to 50. We demonstrated that the step-on rising and step-off falling edges propagate with the speed of light in vacuum without a slow light effect. At high α0L, the precursor is separated from the delayed main pulse at the rising edge, while at the falling edge, we observe damped oscillatory structures resulting from the interference between the precursor and main field.
Rights: Physical Review Letters © copyright (2009) American Physical Society. The Journal's web site is located at http://prl.aps.org
URI: http://hdl.handle.net/1783.1/6620
Appears in Collections:PHYS Journal/Magazine Articles

Files in This Item:

File Description SizeFormat
e093602.pdf786KbAdobe PDFView/Open

Find published version via OpenURL Link Resolver

All items in this Repository are protected by copyright, with all rights reserved.