Results 41 to 50 of about 374,441 (328)

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Comparison of Photonic to Plasmonic Mode Converters for Plasmonic Multiple-Input Devices

IEEE Photonics Journal
Implementing a compact optical integrated circuit by utilizing subwavelength plasmonic devices requires the design of compact and efficient photonic to plasmonic mode converters.
Samantha Lubaba Noor, Francky Catthoor, Dennis Lin, Pol Van Dorpe, Azad Naeemi   +4 more
doaj   +1 more source

A method for generating a microwave vortex field [PDF]

Компьютерная оптика, 2019
In this paper, we propose an on-end structure of a circular waveguide that forms a vortex field of the microwave range. We construct its numerical model.
Dmitrii Poletaev, Bogdan Sokolenko
doaj   +1 more source

Broadband Supercontinuum Generation Using Dispersion Engineered As₂Se₃-GeAsSe-GeAsS Waveguide at 6 μm

IEEE Access, 2023
This paper reports a theoretical study of supercontinuum generation with a novel dispersion-engineered reverse rib waveguide design using chalcogenide materials such as As2Se3 glass as a core, GeAsSe and GeAsS as cladding.
V. Hitaishi, Nandam Ashok
doaj   +1 more source

Dual-band ridged waveguide [PDF]

, 1975
Waveguide-in-waveguide technique involves routing two waveguides through same passageway. Smaller waveguide can be soft or silver soldered inside X-band waveguide to form single ridge guide and to propagate frequencies at C ...
Franke, J. M.
core   +1 more source

Controllable single-photon frequency converter via a one-dimensional waveguide

, 2014
We propose a single-photon frequency converter via a one-dimensional waveguide coupled to a $V$-type atom. The on-demand classical field allows the atom to absorb a photon with a given frequency, then emit a photon with a carried frequency different from
Li, Yong, Sun, C. P., Wang, Z. H., Zhou, Lan   +3 more
core   +1 more source

Magnetic‐Field Tuning of the Spin Dynamics in the Quasi‐2D Van der Waals Antiferromagnet CuCrP2S6

Advanced Functional Materials, EarlyView.
This study reveals 2D character of the spin dynamics in CuCrP2S6, as well as complex field dependence of collective excitations in the antiferromagnetically ordered state. Their remarkable tuning from the antiferromagnetic to the ferromagnetic type with magnetic field, together with the non‐degeneracy of the magnon gaps favorable for the induction of ...
Joyal John Abraham, Yaqian Guo, Yuliia Shemerliuk, Sebastian Selter, Saicharan Aswartham, Kranthi Kumar Bestha, Laura T. Corredor, Anja U. B. Wolter, Olga Kataeva, Luka Rogić, Noah Somun, Damjan Pelc, Oleg Janson, Jeroen van den Brink, Bernd Büchner, Vladislav Kataev, Alexey Alfonsov   +16 more
wiley   +1 more source

Magnetic‐Field Dependent VB− Spin Decoherence in Hexagonal Boron Nitrides: A First‐Principles Study

Advanced Functional Materials, EarlyView.
This study investigates the decoherence of the VB− defect in h‐BN under external magnetic fields using first‐principles quantum many‐body simulations. A transition boundary distinguishing distinct decoherence regimes is identified, with its dependence on isotopic composition.
Jaewook Lee, Hyeonsu Kim, Huijin Park, Hosung Seo   +3 more
wiley   +1 more source

Design and implementation of microwave attenuation measurements to estimate the dry rubber content of natural rubber latex [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2015
An accurate, quick and practical method for measuring the dry rubber content (DRC) in natural rubber latex is proposed and investigated experimentally, based on microwaves.
Pattara Aiyarak, Piti Sunheem
doaj  

Компьютерная симуляция распространения плоской электромагнитной волны в волноводе образованном поверхностью Земли и ионосферой при условии неоднородной проводимости границ

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023
В статье приводятся результаты компьютерного моделирования распространения плоской электромагнитной волны. Грозовые разряды являются естественными источниками импульсного электромагнитного излучения (атмосферика).
Твёрдый, Д.А., Малкин, Е.И.   +1 more
doaj   +1 more source