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Deep-subwavelength nanohole arrays embedded in nanoripples fabricated by femtosecond laser irradiation

机译:飞秒激光辐照嵌入纳米波纹中的深亚波长纳米孔阵列

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摘要

We report on the formation of deep-subwavelength nanohole arrays embedded in silicon carbide nanoripples fabricated by an 800 nm femtosecond laser in an underwater environment. The period of the nanoripples is about 500 nm. The ripples are perpendicular to the polarization direction of the incident laser. The diameter of the holes is about 30 nm, and the period of the hole array is about 60 nm. Nanoripple formation is attributed to interference of the incident laser and a laser-induced plasma wave. Nanohole array formation is attributed to the formation of channel plasmon polaritons in the laser-induced nanogrooves associated with the nanoripples. (C) 2015 Optical Society of America
机译:我们报告了在水下环境中由800 nm飞秒激光制造的嵌入在碳化硅纳米波纹中的深亚波长纳米孔阵列的形成。纳米波纹的周期为约500nm。波纹垂直于入射激光的偏振方向。孔的直径为约30nm,并且孔阵列的周期为约60nm。纳米波纹的形成归因于入射激光和激光诱导的等离子体波的干扰。纳米孔阵列的形成归因于与纳米波纹相关的激光诱导的纳米沟槽中通道等离激元极化子的形成。 (C)2015年美国眼镜学会

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