【摘 要】
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The role and conservation of orbital angular momentum (OAM) of light fields in nonlinear processes are interesting and important scientific topics.For most cases,the total OAM of the involved fields i
【机 构】
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School of Physics, Nankai University, Tianjin 300071
【出 处】
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中国物理学会2013年秋季学术会议
论文部分内容阅读
The role and conservation of orbital angular momentum (OAM) of light fields in nonlinear processes are interesting and important scientific topics.For most cases,the total OAM of the involved fields is generally considered to be with a constant value,however,recent advances show that OAM might not conserve in type-II spontaneous parametric down conversion,which challenges the traditional concepts of OAM conserved during nonlinear propagation [Phys.Rev.Lett.85,286 (2000); Phys.Rev.Lett.101,163602 (2008)].
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