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Luminous, relativistic, directional electron bunches from an intense laser driven grating plasma

by Brijesh, P. , Sheng, Z. M. , Kumar, G. Ravindra , Li, Boyuan , Adak, Amitava , Jha, J. , Inoue, M. , Mishima, Y. , Krishnamurthy, M. , Singh, Prashant Kumar , Chatterjee, Gourab , Dalui, Malay , Tanaka, K. A. , Tata, Sheroy , Trivikram, M. , Habara, H. , Chen, Min , Lad, Amit D.

in 639/624/1020/1095 / 639/766/1960 / 639/766/1960/1135 / 639/766/400/1113 / Energy / Energy transfer / Humanities and Social Sciences / Lasers / Magnetic fields / multidisciplinary / Physics / Plasma / Science / Science (multidisciplinary) / Simulation / Surface plasmon resonance

2022

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Luminous, relativistic, directional electron bunches from an intense laser driven grating plasma

2022

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2022

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Journal Article

Luminous, relativistic, directional electron bunches from an intense laser driven grating plasma

Brijesh, P.,

Sheng, Z. M.,

Kumar, G. Ravindra,

Li, Boyuan,

Adak, Amitava,

Jha, J.,

Inoue, M.,

Mishima, Y.,

Krishnamurthy, M.,

Singh, Prashant Kumar,

Chatterjee, Gourab,

Dalui, Malay,

Tanaka, K. A.,

Tata, Sheroy,

Trivikram, M.,

Habara, H.,

Chen, Min,

Lad, Amit D.

2022

Overview

Bright, energetic, and directional electron bunches are generated through efficient energy transfer of relativistic intense (~ 10 19 W/cm 2 ), 30 femtosecond, 800 nm high contrast laser pulses to grating targets (500 lines/mm and 1000 lines/mm), under surface plasmon resonance (SPR) conditions. Bi-directional relativistic electron bunches (at 40° and 150°) are observed exiting from the 500 lines/mm grating target at the SPR conditions. The surface plasmon excited grating target enhances the electron flux and temperature by factor of 6.0 and 3.6, respectively, compared to that of the plane substrate. Particle-in-Cell simulations indicate that fast electrons are emitted in different directions at different stages of the laser interaction, which are related to the resultant surface magnetic field evolution. This study suggests that the SPR mechanism can be used to generate multiple, bright, ultrafast relativistic electron bunches for a variety of applications.

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Publisher

Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio

Subject

/ Energy

/ Humanities and Social Sciences