在真空中通过赫米特高阶余弦-双曲-高斯激光增强电子加速度

IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Optical and Quantum Electronics Pub Date : 2024-10-26 DOI:10.1007/s11082-024-07753-1
Harjit Singh Ghotra
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引用次数: 0

摘要

对Hermite高阶余弦高斯(H-Hch-G)激光脉冲进行理论研究,探索其有效加速真空电子的潜力。具有模式指数(n,l)的赫米特多项式函数、去中心参数(b)支配的余弦双曲函数、其高阶(m)以及高斯光束函数都会影响这些不同激光脉冲的传播特性。m "的阶数从 0 到 3 不等,可分为 HG、H-cosh-G、H-(cosh)2-G 和 H-(cosh)3-G 函数激光脉冲。它适用于长距离传播,因为光束轮廓离开其初始最大强度中心的速度较慢,并且随着 "m "的增大而变得平缓。改变 "b "时,其特性从环形(b ~ 2)和平顶(b > 1)变为高斯(b = 0)。因此,它的功能足以将电子迅速加速到难以置信的高能量。根据分析结果,当改变模式指数(n, l)、m 和 b 时,真空中激光的电子能量在 GeV 级有很大的提高,其强度峰值为 ~(\:{10}^{20}text{W}/{text{c}\text{m}}^{2}\)。
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Enhanced electron acceleration through Hermite higher-ordered cosine-hyperbolic-gaussian laser in vacuum

Theoretical investigation on Hermite higher-ordered cosh-Gaussian (H-Hch-G) laser pulses to explore their potential for effectively vacuum electron acceleration. The Hermite polynomial function with mode indices (n, l), decentered parameter (b) governed cosine-hyperbolic function, its higher-order (m), and Gaussian beam function all affect the propagation properties of these distinct laser pulses. With an order of ‘m’ varying from 0 to 3, they are categorized as HG, H-cosh-G, H-(cosh)2-G, and H-(cosh)3-G functioned laser pulses. It is suited for long-distance propagation because the beam profile departs its initial maximum intensity centre more slowly and becomes flatter as ‘m’ increases. Upon changing ‘b’, the property’s characteristics changes from ring-shaped (b ~ 2) and flat top (b > 1) to Gaussian (b = 0). Consequently, it functions sufficiently to quickly accelerate electrons to incredibly high energies. According to analytical findings, there is a large increase in electron energy in GeV regime with intensity peak ~\(\:{10}^{20}\text{W}/{\text{c}\text{m}}^{2}\) of laser in vacuum when the mode indices (n, l), m and b are altered.

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来源期刊
Optical and Quantum Electronics
Optical and Quantum Electronics 工程技术-工程:电子与电气
CiteScore
4.60
自引率
20.00%
发文量
810
审稿时长
3.8 months
期刊介绍: Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.
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