Phase modulation of propagation effect with Doppler broadening
Qiao Hong-Xia(乔红霞)a), Yang Yan-Ling(杨艳玲)a), Tan Xia(谭霞)a), Tong Dian-Min(仝殿民)b), and Fan Xi-Jun(樊锡君)a)†
a College of Physics and Electronics, Shandong Normal University, Jinan 250014, China; b School of Physics and Microelectronics, Shandong University, Jinan 250100, China
Abstract This paper studies the propagation effect in a closed lambda-type three-level atomic system with Doppler broadening. It is shown that, Doppler broadening due to atomic motion and propagation effect associated with driving field depletion along the active medium decreases obviously the gain and output of the lasing without inversion (LWI); the relative phase between the probe and driving fields has a remarkable modulation role to the propagation effect on LWI when Doppler broadening presents; by choosing suitable value of the relative phase, we can get the largest gain and output of LWI.
Received: 27 January 2008
Revised: 15 March 2008
Accepted manuscript online:
(Calculations and mathematical techniques in atomic and molecular physics)
Fund: Project supported by the National
Natural Science Foundation of China (Grant No 10675076) and the
Natural Science Foundation of Shandong Province, China (Grant No
Y2006A21).
Cite this article:
Qiao Hong-Xia(乔红霞), Yang Yan-Ling(杨艳玲), Tan Xia(谭霞), Tong Dian-Min(仝殿民), and Fan Xi-Jun(樊锡君) Phase modulation of propagation effect with Doppler broadening 2008 Chin. Phys. B 17 3734
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