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Coherent hole-burnings induced by a bichromatic laser field

✍ Scribed by Qiong-Yi He; Xiao-Gang Wei; Jin-Hui Wu; Bing Zhang; Jin-Yue Gao

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
215 KB
Volume
281
Category
Article
ISSN
0030-4018

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✦ Synopsis

In a Doppler-broadened three-level K-type system driven simultaneously by a coupling laser and two equal-amplitude saturating laser fields with a frequency difference 2d, the absorption spectrum of a weak probe laser exhibits multiple deep spectral holes through coherent hole-burning CHB with controllable numbers, widths, depths, and positions. More significant, changing d or lasers directions, CHBs can degenerate into narrower and deeper spectral holes where the slope of the refractive index is very steep. The multiple narrow spectral holes in a single absorption profile are expected to have potential applications in high density storage, optical information processes, and slow-light.

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