High-contrast optical vortex detection using the Talbot effect

Panthong Pituk; Srisuphaphon Sorakrai; Chiangga Surasak; Deachapunya Sarayut

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High-contrast optical vortex detection using the Talbot effect

机译：使用Talbot效应的高对比度光学涡流检测

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We apply the near-field Talbot effect to distinguish, characterize, and detect optical vortices. We perform experiments with single-, double-, multiple-slit, and grating diffraction. High-contrast image detection is achieved with the Talbot effect of a grating, even for higher than l = +/- 1 orbital angular momentum states. Furthermore, we manipulate the vortex beam with different vortex states and use the Talbot effect for detecting. The experimental results are supported by theoretical simulations and demonstrate that the Talbot effect provides an excellent tool for optical vortex detection. (C) 2018 Optical Society of America

机译：我们应用近场Talbot效果以区分，表征和检测光学涡旋。我们用单，双狭缝和光栅衍射进行实验。使用光栅的Talbot效应实现高对比度图像检测，即使高于L = +/- 1轨道角动量状态。此外，我们用不同的涡旋状态操纵涡旋光束，并使用Talbot效应进行检测。实验结果得到理论模拟支持，并证明了Talbot效应为光学涡流检测提供了优异的工具。（c）2018年光学学会

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《Applied optics》 |2018年第7期|共5页
作者
Panthong Pituk; Srisuphaphon Sorakrai; Chiangga Surasak; Deachapunya Sarayut;
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Kasetsart Univ Fac Sci Dept Phys Bangkok 10900 Bangkok Provinc Thailand;

Burapha Univ Fac Sci Dept Phys Saen Suk 20131 Chonburi Provin Thailand;

Kasetsart Univ Fac Sci Dept Phys Bangkok 10900 Bangkok Provinc Thailand;

Burapha Univ Fac Sci Dept Phys Saen Suk 20131 Chonburi Provin Thailand;

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High-contrast optical vortex detection using the Talbot effect

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