Journal
PHYSICS OF PLASMAS
Volume 29, Issue 6, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0086425
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Funding
- National Natural Science Foundation of China [61801182]
- State Key Laboratory of Optoelectronic Materials and Technologies Open Fund, Sun Yat-Sen University [OEMT-2018-KF-07]
- Start-up Funding of School of Microelectronics, South China University of Technology (SCUT) [K5200280]
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This study presents an electron acceleration model based on Bloch surface waves (BSWs), which generates BSWs by depositing a dielectric multilayer on a prism substrate. The research discusses various aspects of the acceleration mechanism, providing an all-optical method for electron acceleration. The model is numerically solved to explain the phenomenon in space and time domain.
In this paper, we present an electron acceleration model based on Bloch surface waves (BSWs). In our model, a dielectric multilayer deposited on a prism substrate is used to generate BSWs by a femtosecond laser pulse. It is found that the field enhancement factor of BSWs is larger than that of surface plasmon polaritons. We numerically solve Maxwell's equations to explain the phenomenon in space and time domain. Various aspects of the acceleration mechanism are discussed, including BSWs coupling and evanescent attenuation, the influence of electron injection time and angle, the kinetic energy spectrum, the angular distribution, and the angular-resolved energy spectrum. Such a model provides an all-optical method for electron acceleration. Published under an exclusive license by AIP Publishing.
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