Optimized Silicon Asymmetric Dual-Pillar Grating for Dielectric Laser Acceleration of Subrelativistic Electrons with Enhanced Accelerating Gradient

Zhaofu CHEN; Kazuyoshi KOYAMA; Mitsuhiro YOSHIDA; Mitsuru UESAKA

doi:10.2184/lsj.45.2_104

レーザーオリジナル

Optimized Silicon Asymmetric Dual-Pillar Grating for Dielectric Laser Acceleration of Subrelativistic Electrons with Enhanced Accelerating Gradient

Zhaofu CHEN, Kazuyoshi KOYAMA, Mitsuhiro YOSHIDA, Mitsuru UESAKA

著者情報

キーワード: Dielectric laser acceleration, Grating structure, Subrelativistic electrons, High accelerating gradient

ジャーナルフリー

2017 年 45 巻 2 号 p. 104-

DOI https://doi.org/10.2184/lsj.45.2_104

詳細

抄録

Dielectric laser accelerator has great potential for the miniaturization of particle accelerators. We present results of the numerical investigation of a silicon dual-pillar grating structure with a high accelerating gradient for subrelativistic electrons. An asymmetric configuration is utilized to generate an accelerating mode with lower skew. Driven by a 1550 nm laser with a peak fluence of 20 mJ/cm2 and a pulse length of 100 fs, the structure could achieve a maximum gradient of 0.42 GV/m for 50 keV electrons.

責任著者(Corresponding author)

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