10.1186/2228-5326-3-1

Effect of magnetic field on terahertz generation via laser interaction with a carbon nanotube array

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  • Santosh Jain1,
  • Jetendra Parashar*1,
  • Rajnish Kurchania2,
  1. Department of Applied Physics, Samrat Ashok Technological Institute, Vidisha, Madhya Pradesh, 464001, IN
  2. Department of Physics, Maulana Azad National Institute of Technology, Bhopal, Madhya Pradesh, 462051, IN
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Published in Issue 2013-01-09

How to Cite

Jain, S., Parashar, J., & Kurchania, R. (2013). Effect of magnetic field on terahertz generation via laser interaction with a carbon nanotube array. International Nano Letters, 3(1 (December 2013). https://doi.org/10.1186/2228-5326-3-1
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Abstract

Abstract An amplitude-modulated laser, in the presence of a static magnetic field, interacts with an array of carbon nanotubes embedded on a metallic surface. The laser exerts a ponderomotive force on the free electrons of carbon nanotubes at twice the modulation frequency that falls in the terahertz (THz) range. Each nanotube acts as an oscillatory electric dipole, producing THz radiations. The presence of magnetic field shifts the resonance condition and provides tunability. The THz radiation power increases with magnetic field strength.

Keywords

  • Terahertz radiation,
  • Carbon nanotubes,
  • Cyclotron resonance,
  • Modulation frequency
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