中国物理B ›› 2017, Vol. 26 ›› Issue (2): 24204-024204.doi: 10.1088/1674-1056/26/2/024204

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Probe gain via four-wave mixing based on spontaneously generated coherence

Hong Yang(杨红), Ting-gui Zhang(张廷桂), Yan Zhang(张岩)   

  1. 1 College of Physics and Electronic Engineering, Hainan Normal University, Haikou 571158, China;
    2 School of Mathematics and Statistics, Hainan Normal University, Haikou 571158, China;
    3 School of Physics, Northeast Normal University, Changchun 130024, China
  • 收稿日期:2016-08-09 修回日期:2016-10-23 出版日期:2017-02-05 发布日期:2017-02-05
  • 通讯作者: Yan Zhang E-mail:zhangy345@nenu.edu.cn
  • 基金资助:
    Project supported by the Natural Science Foundation of Hainan Province, China (Grant Nos. 20151005, 20151015, and 20161006), the National Natural Science Foundation of China (Grant Nos. 11247005, 51262007, 11501153, and 41564006), the Postdoctoral Scientific Research Program of Jilin Province, China (Grant No. RB201330), the Project Sponsored by Science Research Foundation for Returned Overseas Chinese Scholars, and the Fundamental Research Funds for the Central Universities, China (Grant No. 12QNJJ006).

Probe gain via four-wave mixing based on spontaneously generated coherence

Hong Yang(杨红)1, Ting-gui Zhang(张廷桂)2, Yan Zhang(张岩)3   

  1. 1 College of Physics and Electronic Engineering, Hainan Normal University, Haikou 571158, China;
    2 School of Mathematics and Statistics, Hainan Normal University, Haikou 571158, China;
    3 School of Physics, Northeast Normal University, Changchun 130024, China
  • Received:2016-08-09 Revised:2016-10-23 Online:2017-02-05 Published:2017-02-05
  • Contact: Yan Zhang E-mail:zhangy345@nenu.edu.cn
  • Supported by:
    Project supported by the Natural Science Foundation of Hainan Province, China (Grant Nos. 20151005, 20151015, and 20161006), the National Natural Science Foundation of China (Grant Nos. 11247005, 51262007, 11501153, and 41564006), the Postdoctoral Scientific Research Program of Jilin Province, China (Grant No. RB201330), the Project Sponsored by Science Research Foundation for Returned Overseas Chinese Scholars, and the Fundamental Research Funds for the Central Universities, China (Grant No. 12QNJJ006).

摘要: We have studied the probe gain via a double-Λ atomic system with a pair of closely lying lower levels in the presence of two probe and two coherent pump fields. The inversionless gain can be realized by using nondegenerate four-wave mixing under the condition of spontaneously generated coherence (SGC) owing to near-degenerate lower levels. Note that by using SGC, two probe fields can be amplified with more remarkable amplitudes, and the gain spectra of an extremely narrow linewidth can be obtained. Last but not least, our results show that the probe gain is quite sensitive to relative phases due to the SGC presence which allows one to modulate the gain spectra periodically by phase modulation, and can also be influenced by all laser field intensities and frequencies, and the angles between dipole elements.

关键词: probe gain, four-wave mixing, spontaneously generated coherence, narrow spectra linewidth

Abstract: We have studied the probe gain via a double-Λ atomic system with a pair of closely lying lower levels in the presence of two probe and two coherent pump fields. The inversionless gain can be realized by using nondegenerate four-wave mixing under the condition of spontaneously generated coherence (SGC) owing to near-degenerate lower levels. Note that by using SGC, two probe fields can be amplified with more remarkable amplitudes, and the gain spectra of an extremely narrow linewidth can be obtained. Last but not least, our results show that the probe gain is quite sensitive to relative phases due to the SGC presence which allows one to modulate the gain spectra periodically by phase modulation, and can also be influenced by all laser field intensities and frequencies, and the angles between dipole elements.

Key words: probe gain, four-wave mixing, spontaneously generated coherence, narrow spectra linewidth

中图分类号:  (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

  • 42.50.Gy
42.50.Ex (Optical implementations of quantum information processing and transfer) 32.80.Qk (Coherent control of atomic interactions with photons)