Autofocusing and Self-Healing Properties of Aberration Laser Beams in a Turbulent Media

Vasu Dev, Andra Naresh K. Reddy, Andrey V. Ustinov, Svetlana N. Khonina, and Vishwa Pal
Phys. Rev. Applied 16, 014061 – Published 27 July 2021

Abstract

We present the autofocusing and self-healing properties of aberration laser beams (ALBs) in a turbulent media. The ALB is generated by a diffractive optical element (DOE) whose phase profile consists of radial and periodic angular dependence, and then propagated through a turbulent media under weak, moderate, and strong turbulence conditions. The theoretical calculations, numerical simulations, and experimental results are presented. The results show that the presence of turbulence leads to distortion in the spatial structure of ALBs, as well as causes beam wandering. However, the autofocusing properties of ALBs remain invariant. Further, ALBs also possess self-healing abilities in free space as well as in a turbulent media. The self-healing sustains reasonably well even when a large portion of ALB (approximately 60%) is truncated. The distance requires for the self-healing of truncated ALBs remains the same for various percentage of truncation. Particularly, for any amount of truncation up to approximately 60%, ALB self-heals by propagating up to autofocusing distance corresponding to a nontruncated beam.

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  • Received 26 March 2021
  • Revised 28 May 2021
  • Accepted 29 June 2021

DOI:https://doi.org/10.1103/PhysRevApplied.16.014061

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Vasu Dev1, Andra Naresh K. Reddy2,3, Andrey V. Ustinov4, Svetlana N. Khonina4,5, and Vishwa Pal1,*

  • 1Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
  • 2Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 7610001, Israel
  • 3Anurag University, Venkatapur, Hyderabad, Telangana 500 088, India
  • 4Image Processing Systems Institute of RAS–Branch of the FSRC “Crystallography and Photonics” RAS, 151 Molodogvardeyskaya Str., Samara 443001, Russia
  • 5Samara National Research University, Samara 443086, Russia

  • *vishwa.pal@iitrpr.ac.in

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Vol. 16, Iss. 1 — July 2021

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