Beat excitation of terahertz radiation in a semiconductor slab in a magnetic field

Kumar, Manish; Bhasin, Lalita; Tripathi, V. K.

doi:10.1016/j.jpcs.2011.10.031

Cited by 6 publications

(1 citation statement)

References 25 publications

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“…Dai and Liu [67] studied Terahertz emission in a gaseous plasma (generated by two lasers) with intensity of 5.00 Â 10 14 W/cm 2 . Kumar et al [68] studied Beat excitation of terahertz radiation from two different frequency infrared lasers of TM/TE mode propagating along z direction in a rippled density semiconductor waveguide slab in a magnetic field (applied transvers to it) and the terahertz yield is significantly higher in the TM mode laser beating than in the TE mode laser beating. Malik and Malik [69][70][71][72] investigated the role of an external DC magnetic field in tuning the frequency and power of terahertz radiation.…”

Section: Beat Wave Schemesmentioning

confidence: 99%

Studies of Terahertz Sources and Their Applications

Singh¹,

Meena²,

Tyagi³

et al. 2022

Intelligent Electronics and Circuits - Terahertz, ITS, and Beyond

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The contributed chapter discuss the applications of terahertz radiations and its generation mechanism through laser plasma interactions. The methods of generation of terahertz radiations from plasma wake field acceleration, higher harmonic generation and the laser beat wave plasma frequency are reviewed. The nonlinear current density oscillate the plasma at beat wave frequency under the effect of ponderomotive force and excite the terahertz radiation at beat wave frequency. The current state of the arts of the methods of generation has been incorporated. The mathematical expression of ponderomotive force has been derived under the influence of gradient of laser fields. In additions, the future challenge and their overcomes are also been discussed.

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