Study of scattering from a periodic grating structure using Lorentz-Drude model and Chandezon method
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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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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
Novel optical filters based on curved grating structure
Sign Up to like & getrecommendations! 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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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
Study on the characteristics of grating structure sensing based on off-Γ bound states in the continuum
Sign Up to like & getrecommendations! 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
Smith–Purcell radiation improved by multi-grating structure
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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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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.
Sign Up to like & getrecommendations! 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
Cutting sinusoidal gratings to enhance light trapping in thin-film silicon solar cells.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.476697
Abstract: A crystalline silicon thin-film solar cell with a three-layer sinusoidal grating structure is studied. The structure has a double-layer antireflection layer, and the three-layer grating is located in the double-layer antireflection layer and the passivation… read more here.
Keywords: thin film; structure; layer; sinusoidal grating ... See more keywords
Distance and depth modulation of Talbot imaging via specified design of the grating structure.
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DOI: 10.1364/oe.449807
Abstract: For positioning Talbot encoder and Talbot lithography, etc., properties manipulation of Talbot imaging is highly expected. In this work, an investigation on the distance and depth modulation of Talbot imaging, which employs a specially designed… read more here.
Keywords: distance depth; talbot imaging; modulation; structure ... See more keywords