Results 51 to 60 of about 2,335,579 (312)
Total angular momentum sorting in the telecom infrared with silicon Pancharatnam-Berry transformation optics. [PDF]
Optics Express, 2019 Parallel sorting of orbital angular momentum (OAM) and polarization has recently acquired paramount importance and interest in a wide range of fields ranging from telecommunications to high-dimensional quantum cryptography.
G. Ruffato +4 more
semanticscholar +1 more source
Journal 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 +3 more sources
IEEE Access, 2019 In this paper, we present a novel Transformation Optics based Finite-difference time-domain (TO-FDTD) algorithm with Square Transformed Region, which is suitable for fast electromagnetic analysis of small structures in a large computational domain.
Ruonan Chen +3 more
doaj +1 more source
Controlling electromagnetic surface waves with conformal transformation optics
Communications Physics, 2023 The application of transformation optics to the development of intriguing electromagnetic devices can produce weakly anisotropic or isotropic media with the assistance of quasi-conformal and/or conformal mapping, as opposed to the strongly anisotropic ...
Xiaoyu Zhao +4 more
doaj +1 more source
Transforming the optical landscape [PDF]
Science, 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 +3 more sources
Degenerate-band-edge engineering inspired by nonlocal transformation optics
EPJ Applied Metamaterials, 2016 We address the engineering of degenerate-band-edge effects in nonlocal metamaterials. Our approach, inspired by nonlocal-transformation-optics concepts, is based on the approximation of analytically-derived nonlocal constitutive “blueprints”.
Moccia Massimo +2 more
doaj +1 more source
Broadband Wide Angle Lens Implemented with Dielectric Metamaterials
Sensors, 2011 The Luneburg lens is a powerful imaging device, exhibiting aberration free focusing for parallel rays incident from any direction. However, its advantages are offset by a focal surface that is spherical and thus difficult to integrate with standard ...
Anthony Starr +6 more
doaj +1 more source
Experimental nanofocusing of surface plasmon polaritons using a gravitational field
Nanophotonics, 2020 How to capture electromagnetic fields into sub-wavelength spatial scales has been a major challenge in nanophotonics, especially confining surface plasmon polaritons into regions as small as a few nanometers.
Yan Zhiwei +3 more
doaj +1 more source
Physical Review Research, 2021 Hyperbolic metamaterials have attracted considerable interest in the research community for their peculiar ability to enhance control of electromagnetic waves' propagation.
Shahram Dehdashti +7 more
doaj +1 more source
A Phased Array Antenna with New Elements Designed Using Source Transformations
Applied Sciences, 2021 Transformation electromagnetics/optics (TE/TO) has been shown to be a useful technique in designing electromagnetic devices with very unique properties. Here, the concepts of transformation optics for single elements is extended to an array of “pinwheel”
Dipankar Mitra +6 more
doaj +1 more source