Propagation of the degree of cross-polarization of stochastic electromagnetic pulsed beams in free space

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• 作者：Chaoliang Ding^a ; ^{dingchaoliang2006@126.com"" rel=""nofollow} ; Zhiguo Zhao^a ; Liuzhan Pan^a ; ^{panliuzhan@263.net"" rel=""nofollow} ; Xiao Yuan^b ; Baida Lü ; ^c
• 关键词：Degree of cross-polarization ; Pulsed beams ; Temporal coherence length
• 刊名：Optics and Laser Technology
• 出版年：2011
• 出版时间：October 2011
• 年：2011
• 卷：43
• 期：7
• 页码：1179-1183
• 全文大小：344 K

文摘

The concept of the degree of cross-polarization is extended from stochastic electromagnetic stationary beams to stochastic electromagnetic pulsed beams, and the propagation properties of the degree of cross-polarization of stochastic spatially and spectrally partially coherent electromagnetic pulsed beams is studied. The influence of pulse duration and temporal coherence length on the degree of cross-polarization P is emphasized. It is shown that P exhibits an oscillatory behavior in free-space propagation. An increase in the pulse duration or a decrease in the temporal coherence length can weaken the oscillation of P. The validity of the results is interpreted physically.