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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 ...
Alù A.   +26 more
core   +7 more sources

Revealing topology with transformation optics [PDF]

open access: yesNature Communications, 2021
AbstractSymmetry deepens our insight into a physical system and its interplay with topology enables the discovery of topological phases. Symmetry analysis is conventionally performed either in the physical space of interest, or in the corresponding reciprocal space.
Emanuele Galiffi   +8 more
openaire   +7 more sources

Nonlocal Transformation Optics [PDF]

open access: yesPhysical Review Letters, 2012
6 pages, 3 figures; supplementary material available ...
Castaldi, Giuseppe   +3 more
openaire   +5 more sources

Transformational Plasmon Optics [PDF]

open access: yesNano Letters, 2010
Transformation optics has recently attracted extensive interest, since it provides a novel design methodology for manipulating light at will. Although transformation optics in principle embraces all forms of electromagnetic phenomena on all length scales, so far, much less efforts have been devoted to near-field optical waves, such as surface plasmon ...
Guy Bartal   +4 more
openaire   +4 more sources

Transforming the optical landscape [PDF]

open access: yesScience, 2015
Electromagnetism provides us with some of the most powerful tools in science, encompassing lasers, optical microscopes, magnetic resonance imaging scanners, radar, and a host of other techniques. To understand and develop the technology requires more than a set of formal equations.
Pendry, J. B., Luo, Yu, Zhao, Rongkuo
openaire   +4 more sources

Roadmap on transformation optics [PDF]

open access: yesJournal of Optics, 2018
Transformation optics asks, using Maxwell's equations, what kind of electromagnetic medium recreates some smooth deformation of space? The guiding principle is Einstein's principle of covariance: that any physical theory must take the same form in any coordinate system. This requirement fixes very precisely the required electromagnetic medium.
Mahsa Ebrahimpouri   +27 more
openaire   +5 more sources

Transformation optics

open access: yesJournal of Optics, 2011
Metamaterials are artificial materials with versatile properties that can be tailored to fit almost any practical need and thus go well beyond what can be obtained with `natural' materials. Recent progress in developing optical metamaterials allows unprecedented extreme control over the flow of light at both the nano- and macroscopic scales.
Shalaev, Vladimir M., Pendry, John
openaire   +4 more sources

A Unified Approach to Nonlinear Transformation Materials [PDF]

open access: yes, 2017
The advances in geometric approaches to optical devices due to transformation optics has led to the development of cloaks, concentrators, and other devices.
Li, Baowen, Sklan, Sophia R.
core   +4 more sources

Transformation optics with windows [PDF]

open access: yesSPIE Proceedings, 2014
Identity certification in the cyberworld has always been troublesome if critical information and financial transaction must be processed. Biometric identification is the most effective measure to circumvent the identity issues in mobile devices. Due to bulky and pricy optical design, conventional optical fingerprint readers have been discarded for ...
Oxburgh, Stephen   +4 more
openaire   +2 more sources

Optical Transformers

open access: yes, 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 ...
Anderson, Maxwell G.   +4 more
openaire   +2 more sources

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