Measuring orbital angular momentum of helical beams by spatially variable retardation plates

Jingtao Xin; Chunqing Gao; Chen Li; Zheng Wang

doi:10.1007/s00340-012-5194-3

Measuring orbital angular momentum of helical beams by spatially variable retardation plates

Jingtao Xin
, Chunqing Gao^*
, Chen Li
, Zheng Wang

^*Corresponding author for this work

School of Optics and Photonics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The transformation of Laguerre-Gaussian (LG) beams by a spatially variable retardation plate (SVRP), composed of half wave plates, is investigated. When a LG beam with topological charge of m0 passes through an mth order SVRP, it was transformed into two orthogonal circularly polarized beams with topological charge m0 + m and m0 - m. This property is used to measure topological charges of LG beams. We also propose an efficient method which can be used to check mixed orbital angular momentum states.

Original language	English
Pages (from-to)	703-706
Number of pages	4
Journal	Applied Physics B: Lasers and Optics
Volume	108
Issue number	4
DOIs	https://doi.org/10.1007/s00340-012-5194-3
Publication status	Published - Sept 2012

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title = "Measuring orbital angular momentum of helical beams by spatially variable retardation plates",

abstract = "The transformation of Laguerre-Gaussian (LG) beams by a spatially variable retardation plate (SVRP), composed of half wave plates, is investigated. When a LG beam with topological charge of m0 passes through an mth order SVRP, it was transformed into two orthogonal circularly polarized beams with topological charge m0 + m and m0 - m. This property is used to measure topological charges of LG beams. We also propose an efficient method which can be used to check mixed orbital angular momentum states.",

author = "Jingtao Xin and Chunqing Gao and Chen Li and Zheng Wang",

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AU - Xin, Jingtao

AU - Gao, Chunqing

AU - Li, Chen

AU - Wang, Zheng

PY - 2012/9

Y1 - 2012/9

N2 - The transformation of Laguerre-Gaussian (LG) beams by a spatially variable retardation plate (SVRP), composed of half wave plates, is investigated. When a LG beam with topological charge of m0 passes through an mth order SVRP, it was transformed into two orthogonal circularly polarized beams with topological charge m0 + m and m0 - m. This property is used to measure topological charges of LG beams. We also propose an efficient method which can be used to check mixed orbital angular momentum states.

AB - The transformation of Laguerre-Gaussian (LG) beams by a spatially variable retardation plate (SVRP), composed of half wave plates, is investigated. When a LG beam with topological charge of m0 passes through an mth order SVRP, it was transformed into two orthogonal circularly polarized beams with topological charge m0 + m and m0 - m. This property is used to measure topological charges of LG beams. We also propose an efficient method which can be used to check mixed orbital angular momentum states.

UR - https://www.scopus.com/pages/publications/84868579606

U2 - 10.1007/s00340-012-5194-3

DO - 10.1007/s00340-012-5194-3

M3 - Article

AN - SCOPUS:84868579606

SN - 0946-2171

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EP - 706

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

IS - 4

ER -

Measuring orbital angular momentum of helical beams by spatially variable retardation plates

Abstract

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