Results 61 to 70 of about 369,945 (331)
Micromachines, 2018 In this paper, we have proposed a polymer-based photonic crystal (PhC) resonator, with multiple sizes of cavities, and a waveguide to be used as highly sensitive optical sensor components.
Jiayi Sun +5 more
doaj +1 more source
A waveguide metasurface based quasi-far-field transverse-electric superlens
Opto-Electronic Advances, 2021 The imaging capability of conventional lenses is mainly limited by the diffraction of light, and the so-called superlens has been developed allowing the recovery of evanescent waves in the focal plane.
Yechuan Zhu +6 more
doaj +1 more source
Solitary electromagnetic waves propagation in the asymmetric oppositely-directed coupler
, 2009 We consider the electromagnetic waves propagating in the system of coupled waveguides. One of the system components is a standard waveguide fabricated from nonlinear medium having positive refraction and another component is a waveguide produced from an ...
A. Hasegawa +7 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 +16 more
wiley +1 more source
Method of calculating the parameters of ultrasonic super-high-frequency transducers
Технологія та конструювання в електронній апаратурі, 2013 The paper presents a method of calculating the parameters of half-wave package ultrasonic piezoelectric emitters and step waveguides, which has an error no more than 6—8%.
V. L. Lanin, I. B. Petukhov
doaj
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 +3 more
wiley +1 more source
Fluorescent Bulk Waveguide Sensor in Porous Glass: Concept, Fabrication, and Testing
Nanomaterials, 2020 In this work, we suggest the new concept of sensing elements—bulk waveguides (BWGs) fabricated by the laser direct writing technique inside porous glass (PG).
Zhong Lijing +3 more
doaj +1 more source
A trifurcated waveguide problem [PDF]
, 1994 We consider the diffraction of the dominant wave mode which propagates out of the mouth of a semi-infinite waveguide made of a soft and hard half plane.
Rawlins, A D
core
Multimode nematicon waveguides [PDF]
Optics Letters, 2011 We report on the first experimental observation of higher-order modes guided by soliton-induced waveguides in unbiased nematic liquid crystals. We find that the nematicon waveguides operate in a bounded power region specific to each guided mode. Below this region the guided beams diffract, above it the mode mixing and coupling give rise to an unstable ...
Izdebskaya, Yana +3 more
openaire +5 more sources
Advanced Functional Materials, EarlyView.This work presents a novel sensing platform using metallo‐dielectric cryosoret nano‐assemblies and lossless photonic crystals to overcome limitations of conventional plasmonic biosensors. The hybrid system enhances both electric and magnetic field interactions, enabling amplified fluorescence, ultralow detection limits, and prism‐free, objective‐free ...
Seemesh Bhaskar +5 more
wiley +1 more source