Regulation and control method for rapid light intensity and polarization rotation light field

Regulation and control method for rapid light intensity and polarization rotation light field

The invention relates to a regulation and control method for a rapid light intensity and polarization rotation light field. According to the method, a laser array is divided into sub-beam pairs whichare combined in pairs; a frequency difference exists between two sub-beams of each sub-beam pair, the...

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Hauptverfasser: ZHANG BIN, SUN NIANCHUN, YI MUYU, ZHONG ZHEQIANG
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Sprache:chi ; eng
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OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator ZHANG BIN
SUN NIANCHUN
YI MUYU
ZHONG ZHEQIANG
description The invention relates to a regulation and control method for a rapid light intensity and polarization rotation light field. According to the method, a laser array is divided into sub-beam pairs whichare combined in pairs; a frequency difference exists between two sub-beams of each sub-beam pair, the sub-beams are changed into different vortex beams through different spiral phase plates respectively, then the vortex beams are changed into left-rotating circularly polarized light and right-rotating circularly polarized light through different polarization control plates respectively, and finally the two sub-beams are superposed to generated the rapid light intensity and polarization rotation light field. The light field can be used for improving the uniformity of far-field focal spots of the laser array and reducing back scattering of laser in plasma. 本发明涉及一种光强和偏振快速旋转的光场调控方法。该方法是将激光阵列分为两两组合的子光束对，每一子光束对的两子光束间存在频率差，分别经过不同的螺旋相位板变成不同的涡旋光束，再分别经过不同的偏振控制板变成左旋圆偏振光和右旋圆偏振光，最后使两子光束叠加，从而产生光强和偏振快速旋转的光场。该光强和偏振快速旋转的光场可用于提高激光阵
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According to the method, a laser array is divided into sub-beam pairs whichare combined in pairs; a frequency difference exists between two sub-beams of each sub-beam pair, the sub-beams are changed into different vortex beams through different spiral phase plates respectively, then the vortex beams are changed into left-rotating circularly polarized light and right-rotating circularly polarized light through different polarization control plates respectively, and finally the two sub-beams are superposed to generated the rapid light intensity and polarization rotation light field. The light field can be used for improving the uniformity of far-field focal spots of the laser array and reducing back scattering of laser in plasma. 本发明涉及一种光强和偏振快速旋转的光场调控方法。该方法是将激光阵列分为两两组合的子光束对，每一子光束对的两子光束间存在频率差，分别经过不同的螺旋相位板变成不同的涡旋光束，再分别经过不同的偏振控制板变成左旋圆偏振光和右旋圆偏振光，最后使两子光束叠加，从而产生光强和偏振快速旋转的光场。该光强和偏振快速旋转的光场可用于提高激光阵</description><language>chi ; eng</language><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20191129&amp;DB=EPODOC&amp;CC=CN&amp;NR=110515216A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20191129&amp;DB=EPODOC&amp;CC=CN&amp;NR=110515216A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHANG BIN</creatorcontrib><creatorcontrib>SUN NIANCHUN</creatorcontrib><creatorcontrib>YI MUYU</creatorcontrib><creatorcontrib>ZHONG ZHEQIANG</creatorcontrib><title>Regulation and control method for rapid light intensity and polarization rotation light field</title><description>The invention relates to a regulation and control method for a rapid light intensity and polarization rotation light field. 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OPTICS
PHYSICS
title Regulation and control method for rapid light intensity and polarization rotation light field
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