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Measuring the orbital angular momentum of optical vortices using a multipinhole plate
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10.1063/1.3151920
/content/aip/journal/apl/94/23/10.1063/1.3151920
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/23/10.1063/1.3151920
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the experimental setup for measuring the phases sampled by a MP plate, which is located in the front focal plane of a Fourier lens and the detector plane is at the back focal plane.

Image of FIG. 2.
FIG. 2.

(a) An example of a MP plate with seven pinholes. (b) Far-field diffraction intensity pattern when the MP plate is illuminated by an optical vortex with . (c) Amplitude distribution of the Fourier transform of the intensity pattern shown in (b). (d) Phase distribution of the Fourier transform. The vertices of the polygon shown in [(c) and (d)] indicate the positions, from which we can extract the relative phase values passed through the pinholes.

Image of FIG. 3.
FIG. 3.

(a) Example of measured intensity distributions. (b) The measured phase values extracted from the Fourier transform of the intensity patterns.

Image of FIG. 4.
FIG. 4.

Phase distribution of the optical vortex with on the multiple pinholes. Here, the singular point does not coincide with the center of the ring, where and are the displacements in horizontal and vertical directions, respectively.

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/content/aip/journal/apl/94/23/10.1063/1.3151920
2009-06-08
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Measuring the orbital angular momentum of optical vortices using a multipinhole plate
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/23/10.1063/1.3151920
10.1063/1.3151920
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