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

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) r...

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Bibliographic Details
Published in:International nano letters 2013-12, Vol.3 (1), p.1-1, Article 1
Main Authors: Jain, Santosh, Parashar, Jetendra, Kurchania, Rajnish
Format: Article
Language:English
Subjects:
Carbon nanotubes
Chemistry and Materials Science
Electric dipoles
Electric power generation
Laser arrays
Lasers
Magnetic fields
Materials Science
Modulation
Nanochemistry
Nanoscale Science and Technology
Nanostructure
Nanotechnology
Short Communication
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Summary: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.
ISSN:2008-9295
2228-5326
2228-5326
DOI:10.1186/2228-5326-3-1