Results 1 to 10 of about 25,796 (152)

Revealing topology with transformation optics [PDF]

open access: yesNature Communications, 2021
Visualizing and studying topological features is becoming crucial to develop new generation topological systems. Here the authors provide the theoretical and numerical demonstration of the potential of transformation optics connecting the virtual space ...
Lizhen Lu   +5 more
doaj   +6 more sources

Broadband Transformation Optics Devices [PDF]

open access: yesMaterials, 2010
Recently we have suggested that two-dimensional broadband transformation optics devices based on metamaterial designs may be built using tapered waveguides. Here we review application of this principle to broadband electromagnetic cloaking, trapped rainbow, and novel microscopy devices.
Vladimir Shalaev   +2 more
exaly   +6 more sources

Transformation Optics for Plasmonics [PDF]

open access: yesNano Letters, 2010
A new strategy to control the flow of surface plasmon polaritons at metallic surfaces is presented. It is based on the application of the concept of Transformation Optics to devise the optical parameters of the dielectric medium placed on top of the metal surface.
Paloma Arroyo Huidobro   +2 more
exaly   +6 more sources

Aberration corrections for quasi-conformal transformation optics-based reflectors [PDF]

open access: yesScientific Reports
Efficiency limitations of flat reflector antennas designed using quasi-conformal transformation optics are examined along with mechanisms to improve performance over wide bandwidths (> 2.5:1).
Benjamin Cross   +2 more
doaj   +2 more sources

Merging transformation optics with electron-driven photon sources [PDF]

open access: yesNature Communications, 2019
There is growing interest in designing platforms for coherent electron-driven photon sources for hybrid light and electron spectroscopy. Here the authors demonstrate generation of coherent broadband ultrashort light pulses upon electron irradiation to ...
Nahid Talebi   +6 more
doaj   +2 more sources

Étendue and radiance conservation in transformation optics establish strict analytical bounds on field enhancement [PDF]

open access: yesScientific Reports
We establish an intuitive connection between transformation optics (TO) and the classical invariants of étendue and radiance. Through explicit application of the optical-metric formulation of TO, we demonstrate that any smooth, passive, impedance-matched
Mohammad Mehdi Sadeghi   +1 more
doaj   +2 more sources

Hybridization of singular plasmons via transformation optics [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Habib Ammari, Sanghyeon Yu
exaly   +2 more sources

Optical Transformers

open access: yesCoRR, 2023
The rapidly increasing size of deep-learning models has caused renewed and growing interest in alternatives to digital computers to dramatically reduce the energy cost of running state-of-the-art neural networks. Optical matrix-vector multipliers are best suited to performing computations with very large operands, which suggests that large Transformer ...
Maxwell G. Anderson   +4 more
openaire   +3 more sources

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