Singular behaviour of polychromatic dark hollow beams—Experimental observations based investigation

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• 作者：Bharat Kumar Yadav ^{b.yadav@meity.gov.in bky110671@gmail.com}
• 关键词：Generic singularities ; Polychromatic dark hollow beams ; Singular optics ; Spectral changes
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：131
• 期：Complete
• 页码：798-804
• 全文大小：1826 K
• 卷排序：131

文摘

Polychromatic dark hollow beams (PDHBs) produced by axicon-lens system exhibit very interesting behaviour. Such type of polychromatic focused beams possesses so called generic singularities (Berry, 2002; Leach and Padgett, 2003 [2]) that influence the wave-filed and its characteristics (Yadav et al., 2014). The aim of this paper is to report the crux of some very interesting observations recorded during a comprehensive experiential study on PDHBs. This investigation may have potential applications to understand the anomalous behaviour of polychromatic light passes through an axicon-lens system.