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Polarization Imaging and Edge Detection with Image-Processing Metasurfaces
Michele Cotrufo, Sahitya Singh, Akshaj Arora +2
Optical metasurfaces have been recently explored as ultrathin analog image differentiators. By tailoring the momentum transfer function, they can perform efficient Fourier-filterin…
Spatio-Temporal Coupled Mode Theory for Nonlocal Metasurfaces
Adam Overvig, Sander A. Mann, Andrea Alù
Diffractive nonlocal metasurfaces have recently opened a broad range of exciting developments in nanophotonics research and applications, leveraging spatially extended (yet locally…
Ghost line waves
Massimo Moccia, Giuseppe Castaldi, Andrea Alù +1
Time-harmonic electromagnetic plane waves in anisotropic media can exhibit complex-valued wavevectors (with nonzero real and imaginary parts) even in the absence of material dissip…
Twist-Induced Hyperbolic Shear Metasurfaces
Simon Yves, Emanuele Galiffi, Xiang Ni +2
Following the discovery of moiré-driven superconductivity in twisted graphene multilayers, twistronics has spurred a surge of interest in tailored broken symmetries through angular…
An Asymmetric Spoof-Fluid-Spoof Acoustic Waveguide and its Application as a CO Sensor
Nathan Perchikov, Đorđe Vujić, Branimir Bajac +3
We study pressure acoustic propagation in asymmetric spoof-fluid-spoof acoustic waveguides and its potential application in acoustic gas sensors. First, a stable and efficient anal…
Tunable Magnetless Optical Isolation with Twisted Weyl Semimetals
Vladislav Chistyakov, Viktar S. Asadchy, Shanhui Fan +2
Weyl semimetals hold great promise in revolutionizing nonreciprocal optical components due to their unique topological properties. By exhibiting nonreciprocal magneto-optical effec…
Loss compensation and super-resolution with excitations at complex frequencies
Seunghwi Kim, Yu-Gui Peng, Simon Yves +1
Abbe diffraction limit fundamentally bounds the resolution of conventional optical imaging and spectroscopic systems. Along the years, several schemes have been introduced to overc…
Demonstration of a Polarization-Agnostic Geometric Phase in Nonlocal Metasurfaces
Adam Overvig, Yoshiaki Kasahara, Gengyu Xu +1
Symmetry-driven phenomena arising in nonlocal metasurfaces supporting quasi-bound states in the continuum (q-BICs) have been opening new avenues to tailor enhanced light-matter int…
Arbitrarily polarized and unidirectional emission from thermal metasurfaces
J. Ryan Nolen, Adam C. Overvig, Michele Cotrufo +1
Thermal emission from a hot body is ubiquitous, yet its properties remain inherently challenging to control due to its incoherent nature. Recent advances in thermal emission manipu…
Roadmap on structured waves
K. Y. Bliokh, E. Karimi, M. J. Padgett +47
Structured waves are ubiquitous for all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave.…
Magneto-optics in a van der Waals magnet tuned by self-hybridized polaritons
Florian Dirnberger, Jiamin Quan, Rezlind Bushati +10
Controlling quantum materials with light is of fundamental and technological importance. By utilizing the strong coupling of light and matter in optical cavities (1-3), recent stud…