Implementation of a superresolution far-field spot-generator with 1/5 the diffraction limit

被引：2

作者：

Gadamsetti, Praneeth ^{[1
]}

Testorf, Markus ^{[2
]}

Gonzalez, David A. ^{[1
]}

Batoni, Paolo ^{[3
]}

Poutous, Menelaos K. ^{[1
]}

机构：

[1] Univ North Carolina Charlotte, Dept Phys & Opt Sci, Charlotte, NC 28223 USA

[2] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA

[3] NuSpot Technol LLC, Charlotte, NC 28269 USA

来源：

RESULTS IN OPTICS | 2021年 / 3卷

关键词：

Superresolution spot; Super-oscillations; Toraldo filters; Diffractive optics; FABRICATION;

D O I：

10.1016/j.rio.2021.100067

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Diffractive optical elements with point spread functions that exhibit diameters smaller than the wavelengthdependent diffraction limit are considered superresolution filters. A superresolving spot generator with a center-lobe of 1/5th the diameter of the diffraction-limited Airy function was designed using the theory of super-oscillations. The fundamental aspects of the design algorithm, the fabrication process, as well as the experimental verification of the diffraction pattern are described in detail.

引用

页数：3

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