Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-23T20:15:15.153Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetosonic wave-aided terahertz emission by nonlinear mixing of lasers in plasmas

Published online by Cambridge University Press:  16 September 2019

Narender Kumar Open the ORCID record for Narender Kumar [Opens in a new window] ,
Ram Kishor Singh ,
R. Uma  and
R. P. Sharma
Narender Kumar*
Affiliation:
Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi110016, India Department of Physics, Sri Venkateswara College, University of Delhi, New Delhi110021, India
Ram Kishor Singh
Affiliation:
Department of Physics, Shivpati Post Graduate College, Siddharth University, Siddharth Nagar 272205, India
R. Uma
Affiliation:
Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi110016, India
R. P. Sharma
Affiliation:
Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi110016, India
*
Author for correspondence: N. Kumar, Department of Physics, Sri Venkateswara College, University of Delhi, New Delhi110021, India. E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

A scheme of phase-matched terahertz generation by beating two co-propagating lasers in magnetized plasma, in the presence of a magnetosonic wave (MSW), is developed. The beat frequency ponderomotive force of the lasers imparts an oscillatory drift to electrons. The electron drift velocity couples with the electron density perturbation associated with the MSW to produce an irrotational nonlinear current $\left(\nabla \times {\vec J}\;{}^{\rm NL}\ne 0\right)$. The beat current density resonantly excites a THz (Terahertz) radiation when the phase-matching conditions are satisfied. The MSW mediates the phase matching. At 9.6 and 10.6 µm wavelengths, and background magnetic field of 285 kG, one may achieve normalized THz wave amplitude of the order of 10−3 and one obtains the ratio of THz power to pump power of the order of 10−6.

Keywords

Magnetized plasmaphase-matching conditionponderomotive nonlinearityresonant excitationterahertz radiation
Type
Research Article
Information
Laser and Particle Beams , Volume 37 , Issue 4 , December 2019 , pp. 341 - 345
Copyright
Copyright © Cambridge University Press 2019

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bhasin, L and Tripathi, VK (2009) Terahertz generation via optical rectification of x-mode laser in a rippled density magnetized plasma. Physics of Plasmas 16, 103105.CrossRefGoogle Scholar
Dai, J, Karpowicz, N and Zhang, XC (2009) Coherent polarization control of terahertz waves generated from two-color laser-induced gas plasma. Physical Review Letters 103, 023001.CrossRefGoogle ScholarPubMed
D'amico, C, Houard, A, Franco, M, Prade, B, Mysyrowicz, A, Couairon, A and Tikhonchuk, VT (2007) Conical forward THz emission from femtosecond-laser-beam filamentation in air. Physical Review Letters 98, 235002.CrossRefGoogle ScholarPubMed
Davies, AG, Linfield, EH and Jonston, MB (2002) The development of terahertz sources and their applications. Physics in Medicine & Biology 47, 3679.CrossRefGoogle ScholarPubMed
Ginzburg, VL (1970) The Propagation of Electromagnetic Waves in Plasmas. Oxford: Pergamon.Google Scholar
Hamster, H, Sullivan, A, Gordon, S, White, W and Falcone, RW (1993) Subpicosecond, electromagnetic pulses from intense laser-plasma interaction. Physical Review Letters 71, 2725.CrossRefGoogle ScholarPubMed
Han, PY, Cho, CG and Zhang, X-C (2000) Time-domain transillumination of biological tissues with terahertz pulses. Optics Letters 25, 242–244.CrossRefGoogle ScholarPubMed
Hirata, A, Kosugi, T, Takahashi, H, Yamaguchi, R, Nakajima, F, Furuta, T, Ito, H, Sugahara, H, Sato, Y and Nagatsuma, T (2006) 120-GHz-band millimeter-wave photonic wireless link for 10-Gb/s data transmission. IEEE Transactions on Microwave Theory and Techniques 54, 1937–1944.CrossRefGoogle Scholar
Houard, A, Liu, Y, Prade, B, Tikhonchuk, VT and Mysyrowicz, A (2008) Strong enhancement of terahertz radiation from laser filaments in air by a static electric field. Physical Review Letters 100, 255006.CrossRefGoogle ScholarPubMed
Huang, HH, Nagashima, T, Hsu, WH, Juodkazis, S and Hatanaka, K (2018) Dual THz wave and X-ray generation from a water film under femtosecond laser excitation. Nanomaterials 8, 523.CrossRefGoogle ScholarPubMed
Kohler, R, Tredicucc, IA, Beltram, F, Beere, HE, Linfield, EH, Davies, AG, Ritchie, DA, Iotti, RC and Rossi, F (2002) Terahertz semiconductor heterostructure laser. Nature 417, 156–159.CrossRefGoogle ScholarPubMed
Kumar, N, Singh, RK, Sharma, S, Uma, R and Sharma, RP (2018) Numerical simulation of turbulence and terahertz magnetosonic waves generation in collisionless plasmas. Physics of Plasmas 25, 012312.CrossRefGoogle Scholar
Sharma, RP and Singh, RK (2014) Terahertz generation by two cross focused laser beams in collisional plasmas. Physics of Plasmas 21, 073101.CrossRefGoogle Scholar
Singh, M and Sharma, RP (2013) Generation of THz radiation by laser plasma interaction. Contributions to Plasma Physics 53, 540–548.CrossRefGoogle Scholar
Singh, RK, Singh, M, Rajouria, SK and Sharma, RP (2017) High power terahertz radiation generation by optical rectification of a shaped pulse laser in axially magnetized plasma. Physics of Plasmas 24, 073114.CrossRefGoogle Scholar
Tonouchi, M (2007) Cutting-edge terahertz technology. Nature Photonics 1, 97–105.CrossRefGoogle Scholar
Wallace, VP, Anthony, JF, Pickwell, E, Pye, RJ, Taday, PF, Flanagan, N and Thomas, H (2006) Terahertz pulsed spectroscopy of human basal cell carcinoma. Applied Spectroscopy 60, 1127–1133.CrossRefGoogle ScholarPubMed
Wang, XY and Lin, Y (2003) Generation of nonlinear Alfvén and magnetosonic waves by beam–plasma interaction. Physics of Plasmas 10, 3528.CrossRefGoogle Scholar
Wu, HC, Sheng, ZM, Dong, QL, Xu, H and Zhang, J (2007) Powerful terahertz emission from laser wakefields in inhomogeneous magnetized plasmas. Physical Review E 75, 016407.CrossRefGoogle ScholarPubMed