强激光照射下共振纳米天线对物质的电离作用-数值研究

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-06-24 DOI:10.1016/j.radphyschem.2025.113111

K. Zsukovszki, I. Papp, part of NAPLIFE Collaboration

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引用次数: 0

摘要

用粒子池（PIC）方法研究了强（~ 1017 ~ 1018 W/cm2）短（0.1 ps）激光脉冲对金纳米物质的电离作用；共振交叉纳米天线嵌入富氢致密介质中。我们用纳米天线模拟和探索了辐射脉冲在物质中通过时的电离和离子能量获取动力学。研究了场强对共振特性的影响，确定了使质子能量最大化的最佳条件。研究结果旨在优化激光驱动电离，在纳米尺度上启动和控制激光诱导纳米融合（LIN）。

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Ionization of matter with resonating nanoantennas under intense laser irradiation — Numerical study

Ionization of matter with gold nanodopes by intense (∼1017−1018 W/cm2) short (0.1 ps) laser pulses is studied numerically with particle-in-cell (PIC) method; resonant crossed nanoantennas are embedded in the hydrogen-rich dense media. We model and explore the dynamics of ionization and ion energy acquisition during the radiation pulse passage in matter with nanoantenna. Influence of the field intensity on the resonance characteristics is studied to identify the optimal conditions for maximizing proton energy. The results are intended to optimize laser-driven ionization, initiate and control Laser-Induced Nanofusion (LIN) at nanoscale.

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.