Structure and material study of dielectric laser accelerators based on the inverse Cherenkov effect
Bin Sun(孙斌)1,2,3,†, Yang-Fan He(何阳帆)2,3, Ruo-Yun Luo(罗若云)4, Tai-Yang Zhang(章太阳)5, Qiang Zhou(周强)4,6, Shao-Yi Wang(王少义)2,3, Du Wang(王度)7, and Zong-Qing Zhao(赵宗清)2,‡
1 Department of Plasma Physics and Fusion Engineering, Key Laboratory of Geospace Environment (Chinese Academy of Sciences), University of Science and Technology of China, Hefei 230026, China; 2 Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China; 3 The Sciences and Technology on Plasma Physics Laboratory, CAEP, Mianyang 621900, China; 4 Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China; 5 Department of Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, 104 South Wright Street, Urbana, IL 61801, USA; 6 CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China; 7 The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
Abstract Dielectric laser accelerators (DLAs) are considered promising candidates for on-chip particle accelerators that can achieve high acceleration gradients. This study explores various combinations of dielectric materials and accelerated structures based on the inverse Cherenkov effect. The designs utilize conventional processing methods and laser parameters currently in use. We optimize the structural model to enhance the gradient of acceleration and the electron energy gain. To achieve higher acceleration gradients and energy gains, the selection of materials and structures should be based on the initial electron energy. Furthermore, we observed that the variation of the acceleration gradient of the material is different at different initial electron energies. These findings suggest that on-chip accelerators are feasible with the help of these structures and materials.
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11975214).
Corresponding Authors:
Bin Sun, Zong-Qing Zhao
E-mail: binsun97@mail.ustc.edu.cn;zhaozongqing99@caep.cn
Cite this article:
Bin Sun(孙斌), Yang-Fan He(何阳帆), Ruo-Yun Luo(罗若云), Tai-Yang Zhang(章太阳), Qiang Zhou(周强), Shao-Yi Wang(王少义), Du Wang(王度), and Zong-Qing Zhao(赵宗清) Structure and material study of dielectric laser accelerators based on the inverse Cherenkov effect 2023 Chin. Phys. B 32 094101
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