• Electric field enhancement at multiple densities in laser-irradiated nanotube plasma

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      https://www.ias.ac.in/article/fulltext/pram/079/03/0443-0456

    • Keywords

       

      Nanotubes; absorption; field enhancement.

    • Abstract

       

      The electric field enhancement inside a nanotube irradiated by intense ultrashort laser pulse ($\ll 1$ ps) is calculated. The hollowness of the nanotubes determines the field enhancement and the electron density at which such structures exhibit resonance. The electric field in a nanotube plasma is shown to be resonantly enhanced at multiple densities during the two phases of interaction: the ionization phase and the hydrodynamic expansion phase. It is further shown that by a proper choice of hollowness of the nanotubes, a continued occurrence of the resonance over a longer time can be achieved. These properties make nanotubes efficient absorbers of intense ultrashort laser pulses.

    • Author Affiliations

       

      U Chakravarty1 P A Naik1 P D Gupta1

      1. Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
    • Dates

       
  • Pramana – Journal of Physics | News

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