Optical superoscillation technologies beyond the diffraction limit

NI Zheludev, G Yuan - Nature Reviews Physics, 2022 - nature.com
Optical superoscillations are rapid, subwavelength spatial variations of the intensity and
phase of light, occurring in complex electromagnetic fields formed by the interference of …

[图书][B] Singular optics

GJ Gbur - 2016 - taylorfrancis.com
" This engagingly written text provides a useful pedagogical introduction to an extensive
class of geometrical phenomena in the optics of polarization and phase, including simple …

Using superoscillations for superresolved imaging and subwavelength focusing

G Gbur - Nanophotonics, 2019 - degruyter.com
It is now well-appreciated that a bandlimited wave can possess oscillations much more
rapidly than those predicted by the bandlimit itself, in a phenomenon known as …

Ultrasonic super-oscillation wave-packets with an acoustic meta-lens

YX Shen, YG Peng, F Cai, K Huang, DG Zhao… - Nature …, 2019 - nature.com
The Schrödinger equation is a fundamental equation to describe the wave function of a
quantum-mechanical system. The similar forms between the Schrödinger equation and the …

Realising superoscillations: A review of mathematical tools and their application

KS Rogers, ETF Rogers - Journal of Physics: Photonics, 2020 - iopscience.iop.org
Superoscillations are making a growing impact on an ever-increasing number of real-world
applications, as early theoretical analysis has evolved into wide experimental realisation …

Maximal free-space concentration of electromagnetic waves

H Shim, H Chung, OD Miller - Physical Review Applied, 2020 - APS
We derive upper bounds to free-space concentration of electromagnetic waves, mapping out
the limits to the maximal intensity for any spot size and optical-beam-shaping device. For …

Beyond superoscillation: General theory of approximation with bandlimited functions

T Karmakar, AN Jordan - Journal of Physics A: Mathematical and …, 2023 - iopscience.iop.org
We give a general strategy to construct superoscillating/supergrowing functions using an
orthogonal polynomial expansion of a bandlimited function. The degree of superoscillation …

Highly efficient focusing of terahertz waves with an ultrathin superoscillatory metalens: Experimental demonstration

S Legaria, J Teniente, S Kuznetsov… - Advanced Photonics …, 2021 - Wiley Online Library
The performance of an ultrathin (thickness< 0.04 λ 0) metasurface superoscillatory lens
(metaSOL) is experimentally demonstrated in the terahertz (THz) range. The metaSOL is …

Construction of arbitrary vortex and superoscillatory fields

MK Smith, GJ Gbur - Optics Letters, 2016 - opg.optica.org
Superoscillations, oscillations of a bandlimited signal at frequencies greater than its band
limit, have been verified both theoretically and experimentally. The design of such …

A proposal to characterize and quantify superoscillations

Y Li, J Polo-Gómez… - Journal of Physics A …, 2024 - iopscience.iop.org
We present a formal definition of superoscillating function. We discuss the limitations of
previously proposed definitions and illustrate that they do not cover the full gamut of …