Publication
Spatial wave control using a self-biased nonlinear metasurface at microwave frequencies
Related publications (41)
Optothermal shaping of lamb waves with square and spiral phase fronts
Romain Christophe Rémy Fleury, Janez Rus, Aleksi Antoine Bossart
We introduce a Lamb-wave medium with tunable propagation velocities, which are controlled by a two-dimensional heating pattern produced by a laser beam. We utilized it to demonstrate that waves in an appropriately designed medium can propagate in the form ...
2024Dielectric Tetramer Nanoresonators Supporting Strong Superchiral Fields for Vibrational Circular Dichroism Spectroscopy
Hatice Altug, Felix Ulrich Richter, Yasaman Jahani, Rui Lu, Bang Hyun Lee, Ming-Lun Tseng, Longfang Ye
Chirality (C) is a fundamental property of objects, in terms of symmetry. It is extremely important to sense and distinguish chiral molecules in the fields of biochemistry, science, and medicine. Vibrational circular dichroism (VCD) spectroscopy, obtained ...
Washington2023Optical metasurfaces: synthesis, nanofabrication, and colorful applications
In this thesis, we mainly utilize silver to construct the meta-atoms. Although suffering from easily oxidized, its excellent lossless property throughout the visible range makes it suitable for study. When preserved properly, silver-made metasurfaces can s ...
EPFL2022Thermally reconfigurable metalens
Giulia Tagliabue, Fateme Kiani Shahvandi, Anna Archetti, Theodoros Tsoulos, Nathanaël Restori, Ren-Jie Lin
Reconfigurable metalenses are compact optical components composed by arrays of meta-atoms that offer unique opportunities for advanced optical systems, from microscopy to augmented reality platforms. Although poorly explored in the context of reconfigurabl ...
WALTER DE GRUYTER GMBH2022Active Ferromagnetic Metasurface with Topologically Protected Spin Texture for Spectral Filters
Dirk Grundler, Haiming Yu, Jilei Chen
Electromagnetic metasurfaces modulate a material's response to electromagnetic waves by specifically arranged elements with dimensions below the wavelength. They have opened new fields of research, including flat optics and nanophotonics on a chip. Ferroma ...
2022Effect of mechanical nonlinearity on the electromagnetic response of a microwave tunable metamaterial
Romain Christophe Rémy Fleury, Bakhtiyar Orazbayev, Rayehe Karimi Mahabadi, Taha Goudarzi
Tunable metamaterials functionalities change in response to external stimuli. Mechanical deformation is known to be an efficient approach to tune the electromagnetic response of a deformable metamaterial. However, in the case of large mechanical deformatio ...
IOP Publishing Ltd2022Metasurfaces for label-free biosensing mid-infrared optics and active photonic devices
Novel two-dimensional metamaterials, known as metasurfaces, have emerged as a breakthrough platform for controlling electromagnetic wave properties at the nanoscale. These metasurfaces consist of subwavelength nanoantennas or so-called meta-atoms, which ca ...
EPFL2021A Subwavelength Microwave Bandpass Filter Based on a Chiral Waveguide
Romain Christophe Rémy Fleury, Maliheh Khatibi Moghaddam
Wave manipulation at a subwavelength scale has recently attracted significant interest, especially for low-frequency wave propagation, from acoustic to microwave devices. Recently, a few methods achieving subwavelength routing using locally resonant metama ...
IEEE Xplore2020