Results 41 to 50 of about 1,895,079 (278)

Graphene, plasmons and transformation optics [PDF]

open access: yes, 2015
Here we study subwavelength gratings for coupling into graphene plasmons by means of an an- alytical model based on transformation optics that is not limited to very shallow gratings.
Ren, K   +4 more
core   +1 more source

Broadband Wide Angle Lens Implemented with Dielectric Metamaterials

open access: yesSensors, 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

Mirrored Transformation Optics [PDF]

open access: yes, 2023
A mirrored transformation optics (MTO) approach is presented to overcome the material mismatch in transformation optics. It makes good use of the reflection behavior and introduce a mirrored medium to offset the phase discontinuities. Using this approach,
Zhang, Zhinbing   +4 more
core   +1 more source

Degenerate-band-edge engineering inspired by nonlocal transformation optics

open access: yesEPJ 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

A Unidirectional TM-Wave Cloak With Full Parameters

open access: yesIEEE Access, 2020
Unidirectional cloaks or carpet cloaks have become an essential branch of invisibility cloaks due to non-extreme parameters that are relatively easy for realization and potential applications.
Huaping Wang   +6 more
doaj   +1 more source

Designing the Fourier space with transformation optics

open access: yes, 2009
We show that transformation optics can be applied to extend the functionalities of conventional optical devices. In particular, geometrically compressing the input facet of any conventional optical elements can extend the input spatial frequency ...
Han, Seunghoon   +4 more
core   +1 more source

A Novel Transformation Optics-Based FDTD Algorithm for Fast Electromagnetic Analysis of Small Structures in a Large Scope

open access: yesIEEE 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

Conformal hyperbolic optics

open access: yesPhysical 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

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy