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Title: Plasma q -plate for generation and manipulation of intense optical vortices

Journal Article · · Physical Review E
 [1];  [1];  [1]
  1. Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences

An optical vortex is a light wave with a twisting wavefront around its propagation axis and null intensity in the beam center. Its unique spatial structure of field lends itself to a broad range of applications, including optical communication, quantum information, superresolution microscopy, and multidimensional manipulation of particles. However, accessible intensity of optical vortices have been limited to material ionization threshold. This limitation might be removed by using the plasma medium. Here in this paper, we propose the design of suitably magnetized plasmas which, functioning as a q-plate, leads to a direct conversion from a high-intensity Gaussian beam into a twisted beam. A circularly polarized laser beam in the plasma accumulates an azimuthal-angle-dependent phase shift and hence forms a twisting wavefront. Our three-dimensional particle-in-cell simulations demonstrate extremely high-power conversion efficiency. The plasma q-plate can work in a large range of frequencies spanning from terahertz to the optical domain.

Research Organization:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); US Air Force Office of Scientific Research (AFOSR)
Grant/Contract Number:
NA0002948; FA9550-15-1-0391; EP/G054950/1; EP/G056803/1; EP/G055165/1; EP/M022463/1
OSTI ID:
1432060
Alternate ID(s):
OSTI ID: 1410476
Journal Information:
Physical Review E, Vol. 96, Issue 5; ISSN 2470-0045
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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Cited By (6)

Cascaded chirped photon acceleration for efficient frequency conversion journal May 2018
Plasma photonic crystal growth in the trapping regime journal January 2019
Investigation of picosecond thermodynamics in a laser-produced plasma using Thomson scattering journal October 2019
Petawatt and exawatt class lasers worldwide text January 2019
Petawatt and exawatt class lasers worldwide journal January 2019
Petawatt and exawatt class lasers worldwide text January 2019

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