Point spread function of the optical needle super-oscillatory lens
Super-oscillatory optical lenses are known to achieve sub-wavelength focusing. In this paper, we analyse the imaging capabilities of a super-oscillatory lens by studying its point spread function. We experimentally demonstrate that a super-oscillatory lens can generate a point spread function 24% sm...
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sg-ntu-dr.10356-1038942023-02-28T19:41:53Z Point spread function of the optical needle super-oscillatory lens Rogers, Edward T. F. Zheludev, Nikolay I. Roy, Tapashree Yuan, Guanghui School of Physical and Mathematical Sciences DRNTU::Science::Physics::Optics and light Super-oscillatory optical lenses are known to achieve sub-wavelength focusing. In this paper, we analyse the imaging capabilities of a super-oscillatory lens by studying its point spread function. We experimentally demonstrate that a super-oscillatory lens can generate a point spread function 24% smaller than that dictated by the diffraction limit and has an effective numerical aperture of 1.31 in air. The object-image linear displacement property of these lenses is also investigated. Published version 2014-07-03T03:08:57Z 2019-12-06T21:22:32Z 2014-07-03T03:08:57Z 2019-12-06T21:22:32Z 2014 2014 Journal Article Roy, T., Rogers, E. T. F., Yuan, G., & Zheludev, N. I. (2014). Point spread function of the optical needle super-oscillatory lens. Applied Physics Letters, 104(23), 231109-. 0003-6951 https://hdl.handle.net/10356/103894 http://hdl.handle.net/10220/20033 10.1063/1.4882246 en Applied physics letters © 2014 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The paper can be found at the following official DOI: http://dx.doi.org/10.1063/1.4882246. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
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DRNTU::Science::Physics::Optics and light Rogers, Edward T. F. Zheludev, Nikolay I. Roy, Tapashree Yuan, Guanghui Point spread function of the optical needle super-oscillatory lens |
| description |
Super-oscillatory optical lenses are known to achieve sub-wavelength focusing. In this paper, we analyse the imaging capabilities of a super-oscillatory lens by studying its point spread function. We experimentally demonstrate that a super-oscillatory lens can generate a point spread function 24% smaller than that dictated by the diffraction limit and has an effective numerical aperture of 1.31 in air. The object-image linear displacement property of these lenses is also investigated. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Rogers, Edward T. F. Zheludev, Nikolay I. Roy, Tapashree Yuan, Guanghui |
| format |
Article |
| author |
Rogers, Edward T. F. Zheludev, Nikolay I. Roy, Tapashree Yuan, Guanghui |
| author_sort |
Rogers, Edward T. F. |
| title |
Point spread function of the optical needle super-oscillatory lens |
| title_short |
Point spread function of the optical needle super-oscillatory lens |
| title_full |
Point spread function of the optical needle super-oscillatory lens |
| title_fullStr |
Point spread function of the optical needle super-oscillatory lens |
| title_full_unstemmed |
Point spread function of the optical needle super-oscillatory lens |
| title_sort |
point spread function of the optical needle super-oscillatory lens |
| publishDate |
2014 |
| url |
https://hdl.handle.net/10356/103894 http://hdl.handle.net/10220/20033 |
| _version_ |
1759855676991995904 |