Terahertz Smith-Purcell Radiation from Laser Wakefield Accelerated Electron Bunches

被引：0

作者：

Rudzinsky, Ross ^{[1
]}

Debus, Alexander ^{[2
]}

Irman, Arie ^{[2
]}

Klopf, Mike ^{[2
]}

LaBerge, Maxwell ^{[2
]}

Deinert, Jan-Christoph ^{[2
]}

Kovalev, Sergey ^{[2
]}

Schramm, Ulrich ^{[2
]}

Cowan, Tom ^{[2
]}

Downer, Michael C. ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

[2] Helmholtz Zentrum Dresden Rossendorf, Inst Radiat Phys, Dresden, Germany

来源：

2022 IEEE ADVANCED ACCELERATOR CONCEPTS WORKSHOP, AAC | 2022年

关键词：

Smith-Purcell Radiation; Laser Wakefield Accelerator; Terahertz; LIGHT;

D O I：

10.1109/AAC55212.2022.10822910

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Smith-Purcell Radiation is a special case of diffraction radiation produced when a charged particle passes just over the top of a grating surface. The wavelength of emitted radiation is dispersed as a function of angle and diffractive order. Laser Wakefield Accelerators produce highly-energetic, temporally-short electron bunches that could provide a strong, coherent, superradiant source of Smith-Purcell Radiation in the terahertz regime for nonlinear optical applications. Calculations along with planned experiments at Helmholtz-Zentrum Dresden-Rossendorf will be described showing that 300 MeV, 0.5 nC, 10 fs electron bunches paired with a chosen metallic grating can produce a pulse of light with a central frequency of 30 terahertz and a peak electric field strength close to 100 MV/cm. With such a field strength, nonlinear processes such as high-harmonic generation processes or terahertz sum-frequency processes for infrared vibrational spectroscopy are expected to become available.

引用

页数：3

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