Non-axial nature of an optical vortex and Wigner function

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• 作者：Ravindra P. Singh ; Sanjoy Roychowdhury ; Virendra K. Jaiswal
• 关键词：Wigner function ; Non-axial vortex ; Vortex propagation
• 刊名：Optics Communications
• 出版年：2007
• 出版时间：15 June 2007
• 年：2007
• 卷：274
• 期：2
• 页码：281-285
• 全文大小：678 K

文摘

Before we use an optical vortex for any application, it is important to know if the vortex is axial or non-axial, since properties of one type of the vortex are quite different from another. We show that the Wigner distribution can provide a solution, being different for axial and non-axial vortex. We use transport properties of the Wigner function to study the propagation of an axial as well as non-axial vortex and find them different.