Spectral properties of a Ξ-configuration atom driven by a pair of bichromatic fields

doi:10.1088/1674-1056/22/1/014205

Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (1): 14205-014205.doi: 10.1088/1674-1056/22/1/014205

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

Spectral properties of a Ξ-configuration atom driven by a pair of bichromatic fields

金康^{a b c}, 谢小涛^{a b c}, 姜振益^d

a Department of Physics, Northwest University, Xi'an 710069, China;
b National photoelectric technology and Functional Materials & Application of Science and Technology International Cooperation Base, Xi'an 710069, China;
c National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), Xi'an 710069, China;
d Institute of Modern Physics, Northwest University, Xi'an 710069, China

收稿日期:2012-03-31 修回日期:2012-07-27 出版日期:2012-12-01 发布日期:2012-12-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61008016, 10647008, and 50971099), the Natural Science Basis Research Plan in Shaanxi Province of China (Grant No. 2010JQ1002), the Education Department of Shaanxi Province, China (Grant Nos. 09JK752 and 11JK0550), and the Doctoral Program Foundation of Institutions of Higher Education of China (Grant No. 20106101120020).

Spectral properties of a Ξ-configuration atom driven by a pair of bichromatic fields

Jin Kang (金康)^{a b c}, Xie Xiao-Tao (谢小涛)^{a b c}, Jiang Zhen-Yi (姜振益)^d

a Department of Physics, Northwest University, Xi'an 710069, China;
b National photoelectric technology and Functional Materials & Application of Science and Technology International Cooperation Base, Xi'an 710069, China;
c National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), Xi'an 710069, China;
d Institute of Modern Physics, Northwest University, Xi'an 710069, China

Received:2012-03-31 Revised:2012-07-27 Online:2012-12-01 Published:2012-12-01
Contact: Jin Kang E-mail:jinkang@nwu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61008016, 10647008, and 50971099), the Natural Science Basis Research Plan in Shaanxi Province of China (Grant No. 2010JQ1002), the Education Department of Shaanxi Province, China (Grant Nos. 09JK752 and 11JK0550), and the Doctoral Program Foundation of Institutions of Higher Education of China (Grant No. 20106101120020).

摘要/Abstract

摘要： The absorption spectrum and the incoherent fluorescence spectrum of the lower transition in an Ξ-configuration three-level atomic system driven by a pair of bichromatic fields are investigated. The transmission of absorption profile from multipeaked feature to a single-peak feature is identified. Adjusting the relative phase between the two driving fields, the splitting effects of the spectral peaks occur both in fluorescence and absorption spectra. Furthermore, phase modulating can dramatically lead to a great suppression of the amplitudes of the whole absorption spectrum. Physically, this effect is attributed to the phase-sensitive nature of the populations and coherence between atomic states of the system.

关键词: bichromatic field, phase modulating, degradation of absorption, splitting effect

Abstract: The absorption spectrum and the incoherent fluorescence spectrum of the lower transition in an Ξ-configuration three-level atomic system driven by a pair of bichromatic fields are investigated. The transmission of absorption profile from multipeaked feature to a single-peak feature is identified. Adjusting the relative phase between the two driving fields, the splitting effects of the spectral peaks occur both in fluorescence and absorption spectra. Furthermore, phase modulating can dramatically lead to a great suppression of the amplitudes of the whole absorption spectrum. Physically, this effect is attributed to the phase-sensitive nature of the populations and coherence between atomic states of the system.

Key words: bichromatic field, phase modulating, degradation of absorption, splitting effect

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.-p (Quantum optics)

金康, 谢小涛, 姜振益. Spectral properties of a Ξ-configuration atom driven by a pair of bichromatic fields[J]. Chin. Phys. B, 2013, 22(1): 14205-014205.

Jin Kang (金康), Xie Xiao-Tao (谢小涛), Jiang Zhen-Yi (姜振益). Spectral properties of a Ξ-configuration atom driven by a pair of bichromatic fields[J]. Chin. Phys. B, 2013, 22(1): 14205-014205.

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Spectral properties of a Ξ-configuration atom driven by a pair of bichromatic fields

Spectral properties of a Ξ-configuration atom driven by a pair of bichromatic fields

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