Engineering near-field focusing of a microsphere lens with pupil masks
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- 作者：Bing Yan ; Liyang Yue ; Zengbo Wang ; z.wang@bangor.ac.uk" class="auth_mail" title="E-mail the corresponding author
- 关键词：Microsphere ; Super-resolution ; Pupil mask ; Diffraction limit ; Near-field
- 刊名：Optics Communications
- 出版年：2016
- 出版时间：1 July 2016
- 年：2016
- 卷：370
- 期：Complete
- 页码：140-144
- 全文大小：2065 K
文摘
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The design of combining a microsphere lens with a pupil mask is demonstrated.
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It is possible to precisely control the focusing properties of the lens, including the focusing spot size and focal length.
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The enhanced super-resolution gained through pupil mask is quite significant.