6 papers
Improving Optical Metrology by Engineering the Target Environment
Thomas A. Grant, Cheng-Hung Chi, Kevin F. MacDonald +1
Measurements of positional coordinates and dimensions - whether by human vision or optical instrumentation - are fundamental to safety, industrial productivity, manufacturing quali…
Controlling the Flow of Information in Optical Metrology
Maximilian Weimar, Huanli Zhou, Luca Neubacher +5
Optical metrology has progressed beyond the Abbe-Rayleigh limit, unlocking (sub)atomic precision by leveraging nonlinear phenomena, statistical accumulation, and AI estimators trai…
Super-resolution Imaging of Limited-size Objects
Taeyong Chang, Giorgio Adamo, Nikolay I. Zheludev
Improvement of label-free far-field resolution of optical imaging is possible with prior knowledge of the object such as its sparsity or accumulated by a posteriori examination of…
Resolving Complex Subwavelength Grating Structures Using Topologically Structured Light
Thomas A. Grant, Eric Plum, Nikolay I. Zheludev +1
It has been seen recently that when probing a nanoscale object to determine, for example, size or position via light scattering, significant advantage in measurement precision can…
Simultaneous Superoscillations in Space and Time in Nonseparable Light Pulses
Yijie Shen, Nikitas Papasimakis, Nikolay I. Zheludev
A remarkable phenomenon of superoscillations implies that electromagnetic waves can locally oscillate in space or time faster than the fastest spatial and temporal Fourier componen…
Localization of nanoscale objects with light singularities
Thomas A. Grant, Anton N. Vetlugin, Eric Plum +2
Unprecedented atomic-scale measurement resolution has recently been demonstrated in single-shot optical localization metrology based on deep-learning analyses of diffraction patter…