2019
DOI: 10.1209/0295-5075/126/55001
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Terahertz wave generation by photo mixing of radially polarized hollow sinh super-Gaussian lasers in hot plasma

Abstract: An analytical model for forward emission of radially polarized terahertz (THz) wave emission by photo mixing of two-color, radially polarized lasers having hollow sinh super-Gaussian envelopes in hot plasma with periodic density is developed. THz field distribution is optimized with the help of laser envelope parameters. Numerical investigations show that THz field amplitude is maximum at ω1 − ω2 ≈ ωp (resonant excitation). Our investigations show that THz field amplitude increases with electron temperature wi… Show more

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Cited by 6 publications
(2 citation statements)
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“…Chaudhary et al [75] used Hermite cosh Gaussian lasers to generate the efficient intensity distribution of tunable terahertz radiation. Manendra et al [76] used hollow sinh super-Gaussian laser beams to generate polarized terahertz wave by photo mixing of two-color laser. The efficiency and the field amplitude increases with electron temperature.…”
Section: Beat Wave Schemesmentioning
confidence: 99%
“…Chaudhary et al [75] used Hermite cosh Gaussian lasers to generate the efficient intensity distribution of tunable terahertz radiation. Manendra et al [76] used hollow sinh super-Gaussian laser beams to generate polarized terahertz wave by photo mixing of two-color laser. The efficiency and the field amplitude increases with electron temperature.…”
Section: Beat Wave Schemesmentioning
confidence: 99%
“…[3] Recently, the polarization state of THz wave has been controlled by single/two-photon excitation, [4] spatial light modulators, [5,6] and external electric oscillating bias. [7] However, these modulation methods often necessitate additional components, which would lead to insertion losses and reduce THz wave regulation flexibility. Metamaterials as composites of artificial structures offer a solution for designing The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/andp.202300314 DOI: 10.1002/andp.202300314 polarized THz devices due to their precise geometry, structural designability, and tunable electromagnetic function.…”
Section: Introductionmentioning
confidence: 99%