{"paper":{"title":"Azimuthally polarized terahertz radiation generation using radially polarized laser pulse in magnetized plasma","license":"http://creativecommons.org/licenses/by/4.0/","headline":"A radially polarized laser pulse in magnetized plasma generates azimuthally polarized terahertz radiation.","cross_cats":["physics.comp-ph","physics.optics"],"primary_cat":"physics.plasm-ph","authors_text":"Bhupesh Kumar, Dinkar Mishra, Pallavi Jha, Saumya Singh, Shivani Aggarwal","submitted_at":"2026-02-09T09:50:36Z","abstract_excerpt":"An analytical formulation of a radially polarized laser pulse propagating in a homogeneous, magnetized plasma is presented using Lorentz force, continuity and Maxwells equations. Perturbation technique and quasi-static approximation (QSA) have been used to study the generated fields in nonlinear regime. The generated slow, oscillating, transverse electric and magnetic fields having equal amplitude, constitute a radiation field having frequency in the terahertz (THz) range. Particle-in-cell (PIC) simulation code FBPIC is used to validate analytical findings. Simulation studies also show that th"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The generated slow, oscillating, transverse electric and magnetic fields having equal amplitude, constitute a radiation field having frequency in the terahertz (THz) range. Simulation studies also show that the generated THz radiation field propagates beyond the plasma boundary.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The quasi-static approximation and perturbation technique remain valid throughout the nonlinear regime for the chosen plasma and laser parameters, allowing the analytical fields to accurately represent the generated THz radiation.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A radially polarized laser pulse in homogeneous magnetized plasma generates azimuthally polarized THz radiation whose amplitude scales nonlinearly with plasma density and linearly with external magnetic field strength.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A radially polarized laser pulse in magnetized plasma generates azimuthally polarized terahertz radiation.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"12e89c3ed38595327029f9b94f49b2c945262dffbc1e9ae49166fcf449328fe3"},"source":{"id":"2602.08438","kind":"arxiv","version":1},"verdict":{"id":"623c3a69-af29-461d-ace0-b2c282010218","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-16T06:15:31.927272Z","strongest_claim":"The generated slow, oscillating, transverse electric and magnetic fields having equal amplitude, constitute a radiation field having frequency in the terahertz (THz) range. Simulation studies also show that the generated THz radiation field propagates beyond the plasma boundary.","one_line_summary":"A radially polarized laser pulse in homogeneous magnetized plasma generates azimuthally polarized THz radiation whose amplitude scales nonlinearly with plasma density and linearly with external magnetic field strength.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The quasi-static approximation and perturbation technique remain valid throughout the nonlinear regime for the chosen plasma and laser parameters, allowing the analytical fields to accurately represent the generated THz radiation.","pith_extraction_headline":"A radially polarized laser pulse in magnetized plasma generates azimuthally polarized terahertz radiation."},"references":{"count":30,"sample":[{"doi":"","year":1979,"title":"T. Tajima and J. Dawson, “Laser electron accelerator,” Phys. Rev. Lett. 43, 267 (1979)","work_id":"267a8013-f733-48f7-8555-9c12988135a0","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1988,"title":"Laser wakefield acceleration and relativistic optical guiding,","work_id":"474b07a3-bf43-49f2-8651-052afcfbf214","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1996,"title":"Interaction Physics of the Fast Ignitor Concept,","work_id":"d0eb4a2f-0d21-4b49-a747-90aa9d0aa75a","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2072,"title":"Laser-plasma interactions in long-scale-length plasmas under direct-drive National Ignition Facility conditions,","work_id":"700becce-2bbf-4af2-bb55-21c1ef85b89e","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1994,"title":"D. C. Eder et al., “Tabletop x-ray lasers,” Phys. 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