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涡旋光

发布日期:2020-03-23

涡旋光

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根据光在一个波长中的扭转次数,涡旋光束被赋予一个称为拓扑电荷的数字。拓扑荷数为1时,代表相位扭转了一圈,拓扑荷数是2π。拓扑荷数始终为整数,可以是正数或负数,具体取决于扭曲的方向。扭曲次数越多,光线绕轴旋转的速度就越快。这种旋转带有波列的轨道角动量,并将在电偶极子上产生扭矩。

可以通过多种方式在实验室中创建光学涡旋来研究光学涡旋。它们可以直接在激光极速快3器中产生,可以通过电光调制器参数,然而最常用的产生涡旋光的方法还是螺旋相位片。

WOXUANGUANGDEZHONGXINSHIGUANGXUEQIDIAN,CHANGZHONGDEXIANGWEIZAILINGQIANGDUDEZHEIXIEDIANZHOUWEIXUNHUAN(CHANSHENGMINGCHENGWOXUAN)。XUANWOSHI2DCHANGZHONGDEDIANHE3DCHANGZHONGDEXIAN(YINWEITAMENJUYOUERWEIDEERWEI)。ZAIWEIRAOWOXUANDELUJINGZHOUWEIJIFENCHANGDEXIANGWEICHANSHENG2πDEZHENGSHUBEI。GAIZHENGSHUCHENGWEIWOXUANDETUOPUDIANHEHUOQIANGDU

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