All-optical nonlinear Compton scattering performed with a multi-petawatt laser

IF 32.3 1区物理与天体物理 Q1 OPTICS

Nature Photonics Pub Date : 2024-10-14 DOI:10.1038/s41566-024-01550-8

Mohammad Mirzaie, Calin Ioan Hojbota, Do Yeon Kim, Vishwa Bandhu Pathak, Tae Gyu Pak, Chul Min Kim, Hwang Woon Lee, Jin Woo Yoon, Seong Ku Lee, Yong Joo Rhee, Marija Vranic, Óscar Amaro, Ki Yong Kim, Jae Hee Sung, Chang Hee Nam

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引用次数: 0

Abstract

Light–matter interactions driven by ultrahigh-intensity lasers have great potential to uncover the physics associated with quantum electrodynamics (QED) processes occurring in neutron stars and black holes. The Compton scattering between an ultra-relativistic electron beam and an intense laser can reveal a new interaction regime, known as strong-field QED. Here we present an experimental demonstration of nonlinear Compton scattering in a strong laser field, in which a laser-accelerated multi-gigaelectronvolt electron scatters off hundreds of laser photons and converts them into a single gamma-ray photon with several-hundred-megaelectronvolt energy. Along with particle-in-cell (PIC)-QED simulations and analytical calculations, our experimental measurement of gamma-ray spectra verifies the occurrence of Compton scattering in the strongly nonlinear regime, paving the road to examine nonlinear Breit–Wheeler pair production and QED cascades. Researchers demonstrate nonlinear Compton scattering in a strong laser field, in which a laser-accelerated multi-GeV electron scatters off hundreds of laser photons and converts them into a single gamma-ray photon with several-hundred-MeV energy.

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用多兆瓦激光器进行的全光学非线性康普顿散射

由超高强度激光驱动的光物质相互作用在揭示与中子星和黑洞中发生的量子电动力学（QED）过程相关的物理学方面具有巨大潜力。超相对论电子束与高强度激光之间的康普顿散射可以揭示一种新的相互作用机制，即所谓的强场 QED。在这里，我们展示了在强激光场中的非线性康普顿散射实验，在该实验中，激光加速的数百万电子伏特的电子散射掉数百个激光光子，并将它们转换成一个具有数亿电子伏特能量的伽马射线光子。通过粒子在胞（PIC）-QED 模拟和分析计算，我们对伽马射线光谱的实验测量验证了康普顿散射在强非线性状态下的发生，为研究非线性布赖特-维勒对产生和 QED 级联铺平了道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Photonics 物理-光学

CiteScore

54.20

自引率

1.70%

发文量

158

审稿时长

12 months

期刊介绍： Nature Photonics is a monthly journal dedicated to the scientific study and application of light, known as Photonics. It publishes top-quality, peer-reviewed research across all areas of light generation, manipulation, and detection. The journal encompasses research into the fundamental properties of light and its interactions with matter, as well as the latest developments in optoelectronic devices and emerging photonics applications. Topics covered include lasers, LEDs, imaging, detectors, optoelectronic devices, quantum optics, biophotonics, optical data storage, spectroscopy, fiber optics, solar energy, displays, terahertz technology, nonlinear optics, plasmonics, nanophotonics, and X-rays. In addition to research papers and review articles summarizing scientific findings in optoelectronics, Nature Photonics also features News and Views pieces and research highlights. It uniquely includes articles on the business aspects of the industry, such as technology commercialization and market analysis, offering a comprehensive perspective on the field.