Relativistic frequency shifting of laser carrying orbital angular momentum in a magnetized plasma.

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Title: Relativistic frequency shifting of laser carrying orbital angular momentum in a magnetized plasma.
Authors: Malik, Hitendra K.1 (AUTHOR) hkmalik@physics.iitd.ac.in, Bhaskar, Subhajit1 (AUTHOR)
Source: Optical & Quantum Electronics. Feb2026, Vol. 58 Issue 2, p1-14. 14p.
Subjects: Nonlinear Schrödinger equation, WKB approximation, Vector beams, Particle acceleration, Plasma magnetism, Nonlinear optics, Polarization (Electricity)
Abstract: The article investigates the frequency shifting of a laser carrying orbital angular momentum (OAM) in a cold collisionless plasma under the impact of a static magnetic field applied in the axial direction. Spatio-temporal variation of the laser intensity profile is investigated considering relativistic mass increase of the plasma electrons. Nonlinear Schrodinger equation is derived using Wentzel -Kramers - Brillouin (WKB) method and slowly varying envelope approximation. The frequency shifting is then discussed in connection with the spatio-temporal variation of the laser intensity. The effects of magnetic field along with the effects of the polarization states are discussed in detail. The relativistic frequency shifting is observed to enhance both rear side and front side of the pulse with the applied magnetic field. It is also observed that right circularly polarized (RCP) lasers undergo stronger shifting than the left circularly polarized (LCP) lasers. The results obtained in this article may find application in twisted harmonic generation, particle acceleration, optical manipulation and so on. [ABSTRACT FROM AUTHOR]
Copyright of Optical & Quantum Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Relativistic frequency shifting of laser carrying orbital angular momentum in a magnetized plasma.
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  Data: <searchLink fieldCode="AR" term="%22Malik%2C+Hitendra+K%2E%22">Malik, Hitendra K.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hkmalik@physics.iitd.ac.in</i><br /><searchLink fieldCode="AR" term="%22Bhaskar%2C+Subhajit%22">Bhaskar, Subhajit</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Optical+%26+Quantum+Electronics%22">Optical & Quantum Electronics</searchLink>. Feb2026, Vol. 58 Issue 2, p1-14. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Nonlinear+Schrödinger+equation%22">Nonlinear Schrödinger equation</searchLink><br /><searchLink fieldCode="DE" term="%22WKB+approximation%22">WKB approximation</searchLink><br /><searchLink fieldCode="DE" term="%22Vector+beams%22">Vector beams</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+acceleration%22">Particle acceleration</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+magnetism%22">Plasma magnetism</searchLink><br /><searchLink fieldCode="DE" term="%22Nonlinear+optics%22">Nonlinear optics</searchLink><br /><searchLink fieldCode="DE" term="%22Polarization+%28Electricity%29%22">Polarization (Electricity)</searchLink>
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  Data: The article investigates the frequency shifting of a laser carrying orbital angular momentum (OAM) in a cold collisionless plasma under the impact of a static magnetic field applied in the axial direction. Spatio-temporal variation of the laser intensity profile is investigated considering relativistic mass increase of the plasma electrons. Nonlinear Schrodinger equation is derived using Wentzel -Kramers - Brillouin (WKB) method and slowly varying envelope approximation. The frequency shifting is then discussed in connection with the spatio-temporal variation of the laser intensity. The effects of magnetic field along with the effects of the polarization states are discussed in detail. The relativistic frequency shifting is observed to enhance both rear side and front side of the pulse with the applied magnetic field. It is also observed that right circularly polarized (RCP) lasers undergo stronger shifting than the left circularly polarized (LCP) lasers. The results obtained in this article may find application in twisted harmonic generation, particle acceleration, optical manipulation and so on. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Optical & Quantum Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1007/s11082-025-08618-x
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 1
    Subjects:
      – SubjectFull: Nonlinear Schrödinger equation
        Type: general
      – SubjectFull: WKB approximation
        Type: general
      – SubjectFull: Vector beams
        Type: general
      – SubjectFull: Particle acceleration
        Type: general
      – SubjectFull: Plasma magnetism
        Type: general
      – SubjectFull: Nonlinear optics
        Type: general
      – SubjectFull: Polarization (Electricity)
        Type: general
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      – TitleFull: Relativistic frequency shifting of laser carrying orbital angular momentum in a magnetized plasma.
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            NameFull: Malik, Hitendra K.
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            NameFull: Bhaskar, Subhajit
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              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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