Measurement of atmospheric turbulence strength by vortex beam |
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| Authors: | Yalong Gu Greg Gbur |
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| Affiliation: | Department of Physics and Optical Science, University of North Carolina at Charlotte, Charlotte, NC 28223, United States |
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| Abstract: | The behavior of spatial correlation singularities suggests a possible method for measuring atmospheric turbulence strength with a vortex beam. The refractive index structure constant  can be obtained by measuring the radius of a ring dislocation of a vortex beam which has passed through atmospheric turbulence. An approximate analytic expression for the radius of a ring dislocation as a function of  has been derived, and its accuracy is verified by numerical examples. |
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