Diffraction-free bloch surface waves

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August undefined, 2024

WebOct 15, 2024 · Taking advantage of the dispersion relations of BSWs, an abundant spectrally related database is formed that is useful for spectrum retrieval applications. … WebOct 3, 2024 · Here we show in two experiments that nondiffracting and self-healing Bloch surface waves can be launched using a Fresnel axicon (i.e., fraxicon). ... Wang, R. et al. Diffraction-free Bloch surface ...

Multifunctional on-chip directional coupler for spectral and ...

WebMay 14, 2024 · Proposed structure and plane wave analysis. For illustration purposes, we consider a typical configuration of one-dimensional Photonic Crystal (1D-PhC) by … WebIn this report, a new type of Bloch surface wave (BSW) based micro-spectrometer is proposed. A single silicon nanoparticle sitting on a dielectric multilayer substrate is used … himaharju

Nondiffracting Bloch surface wave: 2D quasi-Bessel-Gauss beam

WebDec 1, 2024 · AbstractWe propose and theoretically and numerically investigate resonant subwavelength “on-chip” diffraction gratings operating with Bloch surface waves (BSWs), which propagate along an interface separating an all-dielectric photonic crystal and a ... WebFeb 15, 2024 · Optical microscopy with a diffraction limit cannot distinguish nanowires with sectional dimensions close to or smaller than the optical resolution. Here, we propose a scheme to retrieve the subwavelength cross-section of nanowires based on the asymmetric excitation of Bloch surface waves (BSWs). Leakage radi 2024 PCCP HOT Articles WebDec 15, 2024 · We propose and theoretically and numerically investigate resonant subwavelength “on-chip” diffraction gratings operating with Bloch surface waves … ez timber inc

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One-dimensional photonic crystal for Bloch surface waves and …

WebMay 15, 2024 · Here, we demonstrate a diffraction-free Bloch surface wave sustained on all-dielectric multilayers that does not diffract after being passed through three obstacles or across a single mode fiber. It can propagate in a straight line for distances longer than … We would like to show you a description here but the site won’t allow us. WebThe diffraction patterns are determined by the structures of the 2D PC, and the experimental results match well with the modeling results using the finite-difference time-domain method. Polarization control is demonstrated as one way to achieve reconfigurability. ... Diffraction-Free Bloch Surface Waves. ACS Nano 2024, 11 (6) , … himagromarketingWebWe present a direct evidence of Bloch surface waves (BSWs) waveguiding on ultrathin polymeric ridges, supported by near-field measurements. It is demonstrated that near-infrared BSWs sustained by a silicon-based multilayer can be locally coupled and guided through dielectric ridges of nanometric thickness with low propagation losses. Using a … ez tilt stand

"WebWe report on a one-dimensional photonic crystal (1DPhC) represented by a multilayer structure used for a surface plasmon-like sensing based on Bloch surface waves and … " - Diffraction-free bloch surface waves

Diffraction-free bloch surface waves

$[1703.08632] Diffraction-Free Bloch Surface Waves$

WebMay 17, 2024 · Europe PMC is an archive of life sciences journal literature. WebMar 24, 2024 · Abstract and Figures. In this letter, we demonstrate a novel diffraction-free Bloch surface wave (DF-BSW) sustained on all-dielectric multilayers that does not diffract after being passed through ...

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WebThe interaction of fluorophores with nearby metallic structures is now an active area of research. Dielectric photonic structures offer some advantages over plasmonic … WebMar 1, 2024 · Yet, the confinement of the Bloch surface wave due to the reflections and refractions in the multilayer structure is not as tight as that of the SPP. In this work, by integrating a periodic multilayer structure that supports the Bloch surface wave with a metallic nanowire structure, a hybrid Bloch surface wave polariton could be excited.

WebDiffraction is defined as the interference or bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture. The diffracting object or aperture effectively becomes a secondary source of the propagating wave. Italian scientist Francesco Maria Grimaldi coined the word … WebSep 1, 2024 · Aperiodic nanophotonic structures have attracted wide attention because of their inherent properties. The proper optimization of such structures leads to a photonic band gap associated with local symmetric sub-structured resonance, which can further be associated with the interface edge states [1,2].These photonic band gaps (or quasi …

WebApr 17, 2014 · An on-chip microspectrometer is demonstrated based on a circular diffraction grating consisting of an elliptical Bragg mirror. This structure results in a highly efficient and compact device with simplified processing requirements, useful for sensing, spectroscopy, telecom demultiplexing, and optical interconnects. The computed … WebJul 10, 2024 · A silver nanoparticles array is introduced on the top layer of all-porous-silicon refractive index sensor. Bloch surface wave (BSW) resonance is realized at the interface between air and multilayer porous silicon structure, which can be excited by different coupling schemes: the Kretschmann prism and silver nanoparticles array. In addition to …

WebDiffraction-Free Bloch Surface Waves Ruxue Wang1‡, Yong Wang1‡, Douguo Zhang1*, Guangyuan Si2, Liangfu Zhu1, Luping Du3, Shanshan Kou4, Ramachandram Badugu 5 ...

WebWe report on the use of one-dimensional photonic crystals to detect clinically relevant concentrations of the cancer biomarker ERBB2 in cell lysates. Overexpression of the … hima germanyWebOct 31, 2002 · Rayleigh–Bloch surface waves arise in many physical contexts including water waves and acoustics. They represent disturbances travelling along an infinite periodic structure. In the absence of any existence results, a number of authors have previously computed such modes for certain specific geometries. Here we prove that such waves … himah.orgWebBloch surface wave (BSW) is an alternative of SPP which propagates on multiple layers of dielectrics. Different from SPP, as dielectrics show nearly no Ohmic loss, the BSW is an … himahiunpad