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

Abstract

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.

Authors:
 [1];  [1];  [1]
  1. Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); US Air Force Office of Scientific Research (AFOSR)
OSTI Identifier:
1432060
Alternate Identifier(s):
OSTI ID: 1410476
Grant/Contract Number:
NA0002948; FA9550-15-1-0391; EP/G054950/1; EP/G056803/1; EP/G055165/1; EP/M022463/1
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 96; Journal Issue: 5; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Qu, Kenan, Jia, Qing, and Fisch, Nathaniel J. Plasma q -plate for generation and manipulation of intense optical vortices. United States: N. p., 2017. Web. doi:10.1103/PhysRevE.96.053207.
Qu, Kenan, Jia, Qing, & Fisch, Nathaniel J. Plasma q -plate for generation and manipulation of intense optical vortices. United States. doi:10.1103/PhysRevE.96.053207.
Qu, Kenan, Jia, Qing, and Fisch, Nathaniel J. Tue . "Plasma q -plate for generation and manipulation of intense optical vortices". United States. doi:10.1103/PhysRevE.96.053207.
@article{osti_1432060,
title = {Plasma q -plate for generation and manipulation of intense optical vortices},
author = {Qu, Kenan and Jia, Qing and Fisch, Nathaniel J.},
abstractNote = {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.},
doi = {10.1103/PhysRevE.96.053207},
journal = {Physical Review E},
number = 5,
volume = 96,
place = {United States},
year = {Tue Nov 28 00:00:00 EST 2017},
month = {Tue Nov 28 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on November 28, 2018
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