| Can two partially coherent cosh-Gaussian beams generate far fields with the same spectral degree of coherence？ |
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| 引用本文： | 吕素叶,吕百达.Can two partially coherent cosh-Gaussian beams generate far fields with the same spectral degree of coherence？[J].中国物理 B,2009,18(9):3883-3889. |
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| 作者姓名： | 吕素叶 吕百达 |
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| 作者单位： | (1)Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China; (2)Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China;School of Sciences of Southwest Petroleum University, Chengdu 610500, China |
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| 基金项目： | Project supported
by the National Natural Science Foundation of China (Grant Nos
10574097 and 10874125). |
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| 摘 要： | Taking partially coherent cosh--Gaussian (ChG) beams as an example
of more general partially coherent beams, we have studied the
spectral degree of coherence of partially coherent ChG beams in the
far field. It is shown that, unlike Gaussian Schell-model (GSM)
beams, in the strict sense there do not exist two partially coherent
ChG beams which can generate far fields with the same spectral
degree of coherence. However, under certain conditions it is
possible to find two partially coherent ChG beams with the same
spectral degree of coherence in the far field.
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| 关 键 词： | spectral degree of coherence radiant intensity partially coherent cosh--Gaussian beam |
| 收稿时间： | 2009-02-26 |
| 修稿时间： | 3/6/2009 12:00:00 AM |
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