BOR-FDTD for axially symmetrical diffraction grating calculation

Legenkiy, Maxim

doi:10.1109/uwbusis.2016.7724166

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…Here, coaxial cylinder structure with fine details is employed which can be regarded as nonuniform rotational symmetric geometrics, as shown in Figure 2A. For comparison, different PML algorithms are employed including FDTD‐PML in reference 25, subgridding in reference 26, original CN‐PML in reference 27, CNAD‐PML in reference 28, CNDG‐PML in reference 29. The proposed scheme is denoted as sub‐ICN‐PML for simplified demonstration.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

ICN‐FDTD scheme with absorption boundary condition for nonuniform rotational symmetric geometrics

Dong

Liu

et al. 2022

Int J Numerical Modelling

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Based on iterated Crank–Nicolson (CN) procedure, an alternative algorithm with perfectly matched layer (PML) formulation is proposed in the body‐of‐revolution (BOR) finite‐difference time‐domain (FDTD) lattice for the simulation of rotational symmetric geometrics. For the nonuniform domain simulation, an alternative subgridding method is employed to during the simulation. The iterated CN procedure improves the efficiency through preventing the calculation of tri‐diagonal matrices. The alternative subgridding method enhances the accuracy in nonuniform domains by the calculation of subregions. Numerical example is carried out for the demonstration of effectiveness including efficiency, accuracy and absorption. Through the results, the proposed scheme shows considerable absorption and accuracy improvement in nonuniform domains. Compared with the other CN schemes, the iterated CN procedure can significantly increase the efficiency with small time steps. In conclusion, the advantages and novelty of the proposed algorithm can be described as follows: (1) The iterated CN procedure is proposed for rotational symmetric geometrics. (2) Absorption boundary condition for iterated CN is proposed in BOR‐FDTD. (3) An alternative subgridding method for iterated CN procedure is proposed in BOR‐FDTD lattice. Thus, the proposed algorithm shows potential in nonuniform rotational symmetric geometrics open region simulation.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

ICN‐FDTD scheme with absorption boundary condition for nonuniform rotational symmetric geometrics

Dong

Liu

et al. 2022

Int J Numerical Modelling

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“…A combination of Maxim DL [22] and MuniWin [23], examples of astronomical imaging software, were used to analyse images and generate light curves in order to detect variable stars. MuniWin, available free of charge, is ideal for analysing and outputting relevant light curve information (variation in a star's brightness over time) while Maxim DL is required for finding each set of stellar coordinates.…”

Section: Methods and Softwarementioning

confidence: 99%

Discovering new variable stars at Key Stage 3

et al. 2017

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Details of the London pilot of the 'Discovery Project' are presented, where university-based astronomers were given the chance to pass on some real and applied knowledge of astronomy to a group of selected secondary school pupils. It was aimed at students in Key Stage 3 of their education, allowing them to be involved in real astronomical research at an early stage of their education, the chance to become the official discoverer of a new variable star, and to be listed in the International Variable Star Index database[1], all while learning and practising research-level skills. Future plans are discussed.

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Analysis of axially symmetric diffraction grating

Legenkiy

2017

2017 XI International Conference on Antenna Theory and Techniques (ICATT)

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BOR-FDTD for axially symmetrical diffraction grating calculation

Cited by 6 publications

References 4 publications

ICN‐FDTD scheme with absorption boundary condition for nonuniform rotational symmetric geometrics

ICN‐FDTD scheme with absorption boundary condition for nonuniform rotational symmetric geometrics

Discovering new variable stars at Key Stage 3

Analysis of axially symmetric diffraction grating

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