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|Title:||Point spread function of the optical needle super-oscillatory lens||Authors:||Rogers, Edward T. F.
Zheludev, Nikolay I.
|Keywords:||DRNTU::Science::Physics::Optics and light||Issue Date:||2014||Source:||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-.||Series/Report no.:||Applied physics letters||Abstract:||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.||URI:||https://hdl.handle.net/10356/103894
|ISSN:||0003-6951||DOI:||10.1063/1.4882246||Rights:||© 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.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
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