Multifocal terahertz radiation by intense lasers in rippled plasma
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 342
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شناسه ملی سند علمی:
JR_JTAP-11-2_005
تاریخ نمایه سازی: 27 مرداد 1397
چکیده مقاله:
This paper presents a theoretical model for thegeneration of terahertz radiation by cosh-Gaussian laserbeams of high intensity, which are capable of creatingrelativistic–ponderomotive nonlinearity. We find the componentsof the terahertz radiation for the relativistic laserplasma interaction, i.e. beating of the two lasers of sameamplitude and different frequency in under dense plasma.We plot the electric field profile of the emitted radiationunder the effect of lasers index. By creating a dip in peak ofthe incident lasers’ fields, we can achieve multifocal terahertzradiation.
کلیدواژه ها:
Coshyperbolic-Gaussian lasers Laser index Relativistic effect Rippled plasma Multifocal terahertz radiation
نویسندگان
Reenu Gill
Plasma Waves and Particle Acceleration (PWAPA) Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi ۱۱۰۰۱۶, India
Divya Singh
Rajdhani College, Delhi University, New Delhi, India
Hitendra K Malik
Plasma Waves and Particle Acceleration (PWAPA) Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi ۱۱۰۰۱۶, India