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Chin. Phys. B, 2008, Vol. 17(10): 3734-3738    DOI: 10.1088/1674-1056/17/10/034
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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.
Keywords:  closed system      Doppler broadening      propagation effect      lasing without inversion  
Received:  27 January 2008      Revised:  15 March 2008      Accepted manuscript online: 
PACS:  32.70.Jz (Line shapes, widths, and shifts)  
  31.15.-p (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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