Substrate effect of laser surface sub-micro patterning by means of self-assembly SiO2 microsphere array
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- 作者：Yan Wu ; Lingfei Ji ; ncltji@bjut.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Zhenyuan Lin ; Qiurui Li ; Yijian Jiang
- 关键词：Near-field enhancement ; Micro/nano structure ; Excimer laser ; Refractive index
- 刊名：Applied Surface Science
- 出版年：2015
- 出版时间：1 December 2015
- 年：2015
- 卷：357
- 期：part_PA
- 页码：832-837
- 全文大小：3134 K
文摘
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Substrate effect on the near-field enhancement of microsphere-assisted laser processing was studied.
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The studied substrates include silica, ITO and SiC with increased refractive index.
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High refractive index of substrate results in enormous enhancement inside sphere.
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The field intensity spreads deeper into the substrate with the oscillations.
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The efficient near-field optical enhancement distance can be achieved about λ/2.