Superoscillatory quartz lens with effective numerical aperture greater than one

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Article number021106
Journal / PublicationApplied Physics Letters
Volume117
Issue number2
Publication statusPublished - 13 Jul 2020
Externally publishedYes

Abstract

We report super-resolution high-numerical-aperture and long-working-distance superoscillatory quartz lenses for focusing and imaging applications. At the wavelength of λ = 633 nm, the lenses have an effective numerical aperture of 1.25, a working distance of 200 μm, and a focus into a hotspot of 0.4λ. Confocal imaging with resolution determined by the superoscillatory hotspot size is experimentally demonstrated.

Citation Format(s)

Superoscillatory quartz lens with effective numerical aperture greater than one. / Yuan, G. H.; Lin, Y.-H.; Tsai, D. P.; Zheludev, N. I.

In: Applied Physics Letters, Vol. 117, No. 2, 021106, 13.07.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review