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 …

Waves, modes, communications, and optics: a tutorial

DAB Miller - Advances in Optics and Photonics, 2019 - opg.optica.org
Modes generally provide an economical description of waves, reducing complicated wave
functions to finite numbers of mode amplitudes, as in propagating fiber modes and ideal …

Sparse deconvolution improves the resolution of live-cell super-resolution fluorescence microscopy

W Zhao, S Zhao, L Li, X Huang, S Xing, Y Zhang… - Nature …, 2022 - nature.com
A main determinant of the spatial resolution of live-cell super-resolution (SR) microscopes is
the maximum photon flux that can be collected. To further increase the effective resolution …

Superresolution imaging via superoscillation focusing of a radially polarized beam

Y Kozawa, D Matsunaga, S Sato - Optica, 2018 - opg.optica.org
The phenomenon of superoscillation produces oscillations that are faster than the fastest
Fourier component of a system, potentially forming a local “hot spot” with a size below the …

Super-resolution from noisy data

EJ Candès, C Fernandez-Granda - Journal of Fourier Analysis and …, 2013 - Springer
This paper studies the recovery of a superposition of point sources from noisy bandlimited
data. In the fewest possible words, we only have information about the spectrum of an object …

Exact support recovery for sparse spikes deconvolution

V Duval, G Peyré - Foundations of Computational Mathematics, 2015 - Springer
This paper studies sparse spikes deconvolution over the space of measures. We focus on
the recovery properties of the support of the measure (ie, the location of the Dirac masses) …

Optical super-oscillations: sub-wavelength light focusing and super-resolution imaging

ETF Rogers, NI Zheludev - Journal of Optics, 2013 - iopscience.iop.org
Optical super-oscillations, first predicted in 1952 and observed in 2007, offer a promising
route to optical super-resolution imaging and show potential for manufacturing with light and …

Super-resolution of point sources via convex programming

C Fernandez-Granda - Information and Inference: A Journal of …, 2016 - academic.oup.com
We consider the problem of recovering a signal consisting of a superposition of point
sources from low-resolution data with a cutoff frequency. If the distance between the sources …

[HTML][HTML] Spike detection from inaccurate samplings

JM Azais, Y De Castro, F Gamboa - Applied and Computational Harmonic …, 2015 - Elsevier
This article investigates the support detection problem using the LASSO estimator in the
space of measures. More precisely, we study the recovery of a discrete measure (spike train) …

[HTML][HTML] Planar super-oscillatory lens for sub-diffraction optical needles at violet wavelengths

G Yuan, ETF Rogers, T Roy, G Adamo, Z Shen… - Scientific reports, 2014 - nature.com
Planar optical lenses are fundamental elements of miniaturized photonic devices. However,
conventional planar optical lenses are constrained by the diffraction limit in the optical far …