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   Articles with "grating structure" as a keyword



Study of scattering from a periodic grating structure using Lorentz-Drude model and Chandezon method

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recommendations! Published in 2017 at "Optik"

DOI: 10.1016/j.ijleo.2016.12.071

Abstract: Abstract Presented study deals with the scattering from a dispersive, lossy and periodic grating structure using differential formalism of the Chandezon method also known as C-method. Losses and dispersion in the grating structure has been… read more here.

Keywords: grating structure; structure using; chandezon method; periodic grating ... See more keywords

A novel metal/dielectric combined grating structure incorporating optically thin plasma metals with the properties of controllably polarization and spectral filtering

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recommendations! Published in 2018 at "Optik"

DOI: 10.1016/j.ijleo.2018.04.124

Abstract: Abstract A novel metal/dielectric hybrid grating structure incorporating ultrathin plasma metals and intercross-cascaded dielectric gratings is proposed, characterized by owning the capacities of freely design of resonance and flexibly controls of filtering and polarization, for… read more here.

Keywords: metal dielectric; plasma metals; grating structure; structure ... See more keywords
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Novel optical filters based on curved grating structure

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recommendations! Published in 2017 at "Optics Communications"

DOI: 10.1016/j.optcom.2016.11.035

Abstract: Abstract A novel modified Rowland grating structure is proposed in this paper. Optical filters with the proposed structure are designed and fabricated with both high input and output angles. The passband width, coupling loss of… read more here.

Keywords: based curved; filters based; grating structure; structure ... See more keywords

All-Si photodetector for telecommunication wavelength based on subwavelength grating structure and critical coupling

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recommendations! Published in 2017 at "AIP Advances"

DOI: 10.1063/1.4995700

Abstract: We propose an efficient planar all-Si internal photoemission photodetector operating at the telecommunication wavelength of 1550 nm and numerically investigate its optical and electrical properties. The proposed polarization-sensitive detector is composed of an appropriately engineered… read more here.

Keywords: subwavelength grating; critical coupling; photodetector; grating structure ... See more keywords

Canadian banknotes to explore the phenomenon of diffraction

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recommendations! Published in 2024 at "European Journal of Physics"

DOI: 10.1088/1361-6404/ad2fd8

Abstract: Gratings and their well-known diffraction patterns are the basis of spectrometers to characterize light sources. Reciprocally, periodic peaks in the diffraction pattern of x-rays scattered by solids bring valuable information about the internal geometry of… read more here.

Keywords: banknotes explore; explore phenomenon; grating structure; diffraction ... See more keywords

Study on the characteristics of grating structure sensing based on off-Γ bound states in the continuum

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recommendations! Published in 2023 at "Physica Scripta"

DOI: 10.1088/1402-4896/acd72b

Abstract: Due to the polarization dependence, there are two kinds of off-Γ bound states in the continuum (BIC) modes (TM-like mode and TE-like mode) for C2 symmetric grating structure. Compared to symmetrical protection BIC, off-Γ BIC… read more here.

Keywords: bound states; states continuum; like mode; refractive index ... See more keywords

Refractive-index sensing based on terahertz cavity-modal confinement of Bragg metal grating structure

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recommendations! Published in 2025 at "Physica Scripta"

DOI: 10.1088/1402-4896/adb247

Abstract: Integrated sensing platforms, which possess active layers of local electric-field oscillation in the terahertz (THz) frequency, can sensitively detect analytes via electromagnetic (EM) wave guidance, resonance, and spatial confinement in the system of THz time-domain… read more here.

Keywords: modal confinement; cavity modal; grating structure; confinement ... See more keywords
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Smith–Purcell radiation improved by multi-grating structure

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recommendations! Published in 2022 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ac5390

Abstract: The photonic crystal structure has attracted much attention due to its ability to confine light. In this paper, we present our study on an improved Smith–Purcell radiation from a simple metal photonic crystal excited by… read more here.

Keywords: purcell radiation; radiation; multi grating; structure ... See more keywords

Graphene based tunable grating structure

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recommendations! Published in 2018 at "Materials Research Express"

DOI: 10.1088/2053-1591/aaea9a

Abstract: We propose graphene-silicon hybrid tunable grating structure. The graphene sections are interleaved in silicon waveguide. Periodic and chirped grating structures are the two different designs are presented in the paper. The reflectance, transmittance, electric field… read more here.

Keywords: tunable grating; graphene; grating structure; structure graphene ... See more keywords

Reverse model of grating structure parameters based on neural network

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recommendations! Published in 2020 at "Optical Engineering"

DOI: 10.1117/1.oe.59.2.024106

Abstract: Abstract. In the application of the grating, it is necessary to quickly obtain the measurement results of the structural parameters, and the parameters of the measured grating are usually reversed by means of scatterometry. We… read more here.

Keywords: neural network; relative error; structure parameters; model ... See more keywords

Giant and controllable Goos-Hänchen shift of monolayer graphene strips enabled by a multilayer dielectric grating structure.

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recommendations! Published in 2022 at "Applied optics"

DOI: 10.1364/ao.445558

Abstract: The discovery of monolayer graphene allows the unprecedented chance for exploring its Goos-Hänchen (GH) shift. However, most of the pronounced GH shifts are achieved in various structures with two-dimensional continuous monolayer graphene. Here, we report… read more here.

Keywords: monolayer graphene; shift; monolayer; dielectric grating ... See more keywords