Results 31 to 40 of about 258,190 (217)

Terahertz metasurface based on vanadium dioxide for realizing CNOT logic gate and tunable vortex beams

open access: yesResults in Physics
Independent phase control of circularly polarized light on a single metasurface is highly desirable for terahertz applications. However, most metasurfaces reported suffer from two critical limitations: the lack of dynamic tunability and narrow ...
Fengyu Leng   +3 more
doaj   +1 more source

Investigation of Ytterbium Incorporation in Lithium Niobate for Active Waveguide Devices

open access: yesApplied Sciences, 2020
In this work, we report on an investigation of the ytterbium diffusion characteristics in lithium niobate. Ytterbium-doped substrates were prepared by in-diffusion of thin metallic layers coated onto x- and z-cut congruent substrates at different ...
Christian E. Rüter   +3 more
doaj   +1 more source

All-Dielectric Structural Colors with Lithium Niobate Nanodisk Metasurface Resonators

open access: yesPhotonics, 2022
Lithium niobate (LN) is a promising optical material, its micro–nano structures have been applied to fields such as photonic crystals, nonlinear optics, optical waveguides, and so on.
Yuting Zhou   +3 more
doaj   +1 more source

Tailored SnAl-Cu6Sn5 composite with hierarchical porous architecture for enhanced sodium storage

open access: yesMetals Advances
Tin (Sn) stands as a promising anode for sodium-ion batteries due to its high theoretical capacity, yet it suffers from severe volume changes during cycling.
Rumeng Bai   +9 more
doaj   +1 more source

Parameter investigations on lithium-niobate-based photonic crystal optomechanical cavity

open access: yesResults in Physics, 2023
In this paper, to fully understand the influence of nanofabrication error issues on the lithium-niobate-based device, the systematic simulations and optimizations of lithium-niobate-based photonic crystal (PhC) optomechanical cavity considering the ...
Dingwei Chen   +5 more
doaj   +1 more source

Multi-shell Au@Rh nanoantenna reactor with collective plasmonic excitation for photothermal CO2 methanation

open access: yesNano Research
The photothermal pathway for converting carbon dioxide (CO2) into hydrocarbons presents an effective and straightforward production for solar fuels. Nonetheless, the rational design of a robust solar-driven catalytic system for efficient CO2 conversion ...
Hengrui Zhao   +6 more
doaj   +1 more source

Tunable Lithium Niobate Waveguide Loop [PDF]

open access: yesIEEE Photonics Technology Letters, 2004
A novel, compact, and tunable lithium niobate (LN) planar waveguide loop structure composed of two Y junction reflectors is proposed for optical and radio frequency signal processing applications. The preliminary device shows a high quality factor of 6.5/spl times/10/sup 4/, due to the low propagation loss of the titanium-diffused LN waveguide.
Chen, J X   +7 more
openaire   +2 more sources

Inverse-Designed Lithium Niobate Nanophotonics

open access: yesACS Photonics, 2023
Lithium niobate-on-insulator (LNOI) is an emerging photonic platform that exhibits favorable material properties (such as low optical loss, strong nonlinearities, and stability) and enables large-scale integration with stronger optical confinement, showing promise for future optical networks, quantum processors, and nonlinear optical systems.
Chengfei Shang   +7 more
openaire   +3 more sources

Research on the Fabrication of X-Cut Near Stoichiometric Lithium Niobate Wafers

open access: yesCrystals
This article discusses the preparation of twin free X-cut lithium niobate wafers using the diffusion method. The liquid electrode method was used to eliminate parasitic microdomains at dislocations.
Zixuan Dong   +6 more
doaj   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto   +4 more
wiley   +1 more source

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