278 citations · 636 across the 13 of their papers we have counts for
12 papers
All-Optical Control over Nonlocality for Ultrafast Image Processing with an Excitonic Metasurface
Bernardo S. Dias, Romain Tirole, Michele Guizzardi +4
Image processing lies at the foundation of many modern technologies, such as augmented reality and autonomous driving, yet conventional digital approaches remain energy-intensive a…
Enhanced Interband Optical Nonlinearities from Coupled Quantum Wells
Rithvik Ramesh, Madeline Brown, Amberly Ricks +21
The recent, rapid advances in nonlinear chipscale nanophotonics in the visible and near-infrared have been largely driven by manipulating the local dielectric environment proximate…
Near-field optical mode engineering-enabled freeform nonlocal metasurfaces
Zhongjun Jiang, Tianxiang Dai, Shuwei Guo +6
Nanophotonic technologies inherently rely on tailoring light-matter interactions through the excitation and interference of deeply confined optical resonances. However, existing co…
Nonlocal Metasurface Lens for Long-Wavelength Infrared Radiation
Federico De Luca, Sriram Guddala, Michele Cotrufo +3
Dielectric metasurfaces are structured thin films with thickness smaller than the wavelength that aim at replacing and enhancing conventional bulk optical components by structuring…
Roadmap for Photonics with 2D Materials
F. Javier García de Abajo, D. N. Basov, Frank H. L. Koppens +145
Triggered by the development of exfoliation and the identification of a wide range of extraordinary physical properties in self-standing films consisting of one or few atomic layer…
Nonlinear Analog Processing with Anisotropic Nonlinear Films
Michele Cotrufo, Domenico de Ceglia, Hyunseung Jung +4
Digital signal processing is the cornerstone of several modern-day technologies, yet in multiple applications it faces critical bottlenecks related to memory and speed constraints.…
Skin effect in Non-Hermitian systems with spin
Wenna Zhang, Yutao Hu, Hongyi Zhang +6
The skin effect, where bulk modes collapse into boundary modes, is a key phenomenon in topological non-Hermitian systems, has been predominantly studied in spinless systems. Recent…
Intersubband polaritonic metasurfaces for high-contrast ultra-fast power limiting and optical switching
Michele Cotrufo, Jonas Krakofsky, Sander A. Mann +3
Nonlinear intersubband polaritonic metasurfaces support one of the strongest known ultrafast nonlinear responses in the mid-infrared frequency range across all condensed matter sys…
Temporal Signal Processing with Nonlocal Optical Metasurfaces
Michele Cotrufo, Sedigheh Esfahani, Dmitriy Korobkin +1
Nonlocal metasurfaces have recently enabled an ultra-compact, low-power and high-speed platform to perform analog image processing. While several computational tasks have been demo…
Space-Time Nonlocal Metasurfaces for Event-Based Image Processing
Sedigheh Esfahani, Michele Cotrufo, Andrea Alù
Analog computation with passive optical components can enhance processing speeds and reduce power consumption, recently attracting renewed interest thanks to the opportunities enab…
Reconfigurable Image Processing Metasurfaces with Phase-Change Materials
Michele Cotrufo, Shaban B. Sulejman, Lukas Wesemann +4
Optical metasurfaces have been enabling reduced footprint and power consumption, as well as faster speeds, in the context of analog computing and image processing. While various im…
High-index dielectric metasurfaces performing mathematical operations
Andrea Cordaro, Hoyeong Kwon, Dimitrios Sounas +3
Image processing and edge detection are at the core of several newly emerging technologies, such as augmented reality, autonomous driving and more generally object recognition. Ima…