Terahertz radiation generation by beating of two spatial-Gaussian lasers

Terahertz radiation generation is proposed based on beating of two spatial-Gaussian lasers in a periodic density plasma, where a transverse component of current is realized that resonantly excites the radiation with efficiency ∼10 −3. Importance of laser-beam-width, amplitude and periodicity of dens...

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Bibliographic Details
Published in:Physics letters. A 2011-02, Vol.375 (8), p.1191-1194
Main Authors: Malik, Anil K., Malik, Hitendra K., Nishida, Yasushi
Format: Article
Language:English
Subjects:
Amplitudes
Atomic structure
Density
Efficiency of THz generation
Excitation
Laser beating
Lasers
Plasma
Plasma (physics)
Solid state physics
Spatial-Gaussian lasers
Terahertz radiation
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Summary:Terahertz radiation generation is proposed based on beating of two spatial-Gaussian lasers in a periodic density plasma, where a transverse component of current is realized that resonantly excites the radiation with efficiency ∼10 −3. Importance of laser-beam-width, amplitude and periodicity of density structure is discussed for the efficient THz generation.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2011.01.032