Kinetic study of terahertz generation based on the interaction of two-color ultra-short laser pulses with molecular hydrogen gas

Soltani Gishini, M. S.; Saeed, M.

doi:10.1063/1.4951019

Title: Kinetic study of terahertz generation based on the interaction of two-color ultra-short laser pulses with molecular hydrogen gas

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Abstract

In this work, using a two dimensional particle in cell-Monte Carlo collision simulation scheme, interaction of two-color ultra-short laser pulses with the molecular hydrogen gas (H{sub 2}) is examined. The operational laser parameters, i.e., its pulse shape, duration, and waist, are changed and, their effects on the density and kinetic energy of generated electrons, THz electric field, intensity, and spectrum are studied. It is seen that the best pulse shape generating the THz signal radiation with the highest intensity is a trapezoidal pulse, and the intensity of generated THz radiation is increased at the higher pulse durations and waists. For all the operational laser parameters, the maximum value of emitted THz signal frequency always remains lower than 5 THz. The intensity of applied laser pulses is taken about 10{sup 14} w/cm{sup 2}, and it is observed that while a small portion of the gaseous media gets ionized, the radiated THz signal is significant.

Authors:

Soltani Gishini, M. S.; Saeed, M. ^[1]

Faculty of Physics, Shahid Bahonar University of Kerman, Kerman (Iran, Islamic Republic of)

Publication Date:: Wed Jun 15 00:00:00 EDT 2016

OSTI Identifier:: 22600129

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 23; Journal Issue: 6; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COLLISIONS; COLOR; COMPUTERIZED SIMULATION; DENSITY; ELECTRIC FIELDS; ELECTRONS; HYDROGEN; INTERACTIONS; KINETIC ENERGY; LASERS; MONTE CARLO METHOD; PULSE SHAPERS; PULSES; SIGNALS; TWO-DIMENSIONAL CALCULATIONS

Citation Formats


                    Soltani Gishini, M. S., Ganjovi, A., E-mail: Ganjovi@kgut.ac.ir, and Saeed, M. Kinetic study of terahertz generation based on the interaction of two-color ultra-short laser pulses with molecular hydrogen gas.  United States: N. p., 2016. 
        Web.  doi:10.1063/1.4951019.

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                    Soltani Gishini, M. S., Ganjovi, A., E-mail: Ganjovi@kgut.ac.ir, & Saeed, M. Kinetic study of terahertz generation based on the interaction of two-color ultra-short laser pulses with molecular hydrogen gas.  United States.  https://doi.org/10.1063/1.4951019

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                    Soltani Gishini, M. S., Ganjovi, A., E-mail: Ganjovi@kgut.ac.ir, and Saeed, M. 2016.  
        "Kinetic study of terahertz generation based on the interaction of two-color ultra-short laser pulses with molecular hydrogen gas".  United States.  https://doi.org/10.1063/1.4951019.

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@article{osti_22600129,

  title        = {Kinetic study of terahertz generation based on the interaction of two-color ultra-short laser pulses with molecular hydrogen gas},

  author       = {Soltani Gishini, M. S. and Ganjovi, A., E-mail: Ganjovi@kgut.ac.ir and Saeed, M.},

  abstractNote = {In this work, using a two dimensional particle in cell-Monte Carlo collision simulation scheme, interaction of two-color ultra-short laser pulses with the molecular hydrogen gas (H{sub 2}) is examined. The operational laser parameters, i.e., its pulse shape, duration, and waist, are changed and, their effects on the density and kinetic energy of generated electrons, THz electric field, intensity, and spectrum are studied. It is seen that the best pulse shape generating the THz signal radiation with the highest intensity is a trapezoidal pulse, and the intensity of generated THz radiation is increased at the higher pulse durations and waists. For all the operational laser parameters, the maximum value of emitted THz signal frequency always remains lower than 5 THz. The intensity of applied laser pulses is taken about 10{sup 14} w/cm{sup 2}, and it is observed that while a small portion of the gaseous media gets ionized, the radiated THz signal is significant.},

  doi          = {10.1063/1.4951019},

  url          = {https://www.osti.gov/biblio/22600129},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 6,

  volume       = 23,

  place        = {United States},

  year         = {Wed Jun 15 00:00:00 EDT 2016},

  month        = {Wed Jun 15 00:00:00 EDT 2016}

}

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