The interaction of intense, ultrashort laser pulses with ordered nanostructure arrays offers a path to the efficient creation of ultra-high-energy density (UHED) matter and the generation of high-energy particles with compact lasers. Irradiation of deuterated nanowires arrays results in a near-solid density environment with extremely high temperatures and large electromagnetic fields in which deuterons are accelerated to multi-megaelectronvolt energies, resulting in deuterium–deuterium (D–D) fusion. Here we focus on the method of fabrication and the characteristics of ordered arrays of deuterated polyethylene nanowires. The irradiation of these array targets with femtosecond pulses of relativistic intensity and joule-level energy creates a micro-scale fusion environment that produced $2\times {10}^6$ neutrons per joule, an increase of about 500 times with respect to flat solid CD2 targets irradiated with the same laser pulses. Irradiation with 8 J laser pulses was measured to generate up to 1.2 × 107 D–D fusion neutrons per shot.

中文翻译：

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用于高能密度物理的氘代聚乙烯纳米线阵列

强烈的超短激光脉冲与有序纳米结构阵列的相互作用为高效产生超高能量密度 (UHED) 物质和利用紧凑型激光器产生高能粒子提供了途径。氘化纳米线阵列的辐照导致具有极高温度和大电磁场的近固体密度环境，其中氘核被加速到数兆电子伏能量，导致氘-氘（D-D）聚变。在这里，我们专注于氘化聚乙烯纳米线的制造方法和有序阵列的特性。用相对论强度和焦耳级能量的飞秒脉冲照射这些阵列目标，创造了一个微尺度的聚变环境，产生了 $2\乘以 {10}^6$ 每焦耳中子数，相对于扁平固体 CD 增加约 500 倍2用相同的激光脉冲照射的目标。测量用 8 J 激光脉冲辐照产生高达 1.2 × 107每次发射的 D-D 聚变中子。