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9 April 2020 Experimental investigation of nonlinear spiral phase plates
Valentin I. Logachev, Svetlana N. Khonina, Georgy E. Gridin, Alexey P. Porfirev
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Proceedings Volume 11458, Saratov Fall Meeting 2019: Laser Physics, Photonic Technologies, and Molecular Modeling; 114580J (2020) https://doi.org/10.1117/12.2562264
Event: Saratov Fall Meeting 2019: VII International Symposium on Optics and Biophotonics, 2019, Saratov, Russian Federation
Abstract
We experimentally investigate a novel type of diffractive optical element – a nonlinear spiral phase plate. In contrast to the conventional spiral phase plates, the transmission function of the new element is described as exp(imφn ). The intensity distributions generated by these elements have a spiral shape with an intensity gradient. The phase distribution of the generated light fields is also spiral shaped. We believe that the proposed diffractive element will be useful in the area of laser manipulation and laser–matter interaction.
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Valentin I. Logachev, Svetlana N. Khonina, Georgy E. Gridin, and Alexey P. Porfirev "Experimental investigation of nonlinear spiral phase plates", Proc. SPIE 11458, Saratov Fall Meeting 2019: Laser Physics, Photonic Technologies, and Molecular Modeling, 114580J (9 April 2020); https://doi.org/10.1117/12.2562264
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KEYWORDS
Spiral phase plates
Optical vortices
Diffractive optical elements
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