Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optimization of transmission spectra through periodic aperture arrays
Abstract We investigate the problem of designing periodic aperture arrays in a thin, perfect electric conductor, such that transmission energy of time-harmonic electromagnetic plane waves through the apertures attains a specified profile with respect to frequency. We first formulate a mathematical model for the electromagnetic transmission problem, and describe a regularized numerical discretization. We then formulate the design problem as a mathematical optimization in which an objective is minimized with respect to a discrete characteristic function describing aperture shape and topology. A level-set method combined with a filtering technique and a gradient-based minimization algorithm numerically solves the problem. Several numerical examples are presented which show that although it is possible to obtain improved transmission spectra, the problem is underposed and subject to numerical instability.
Optimization of transmission spectra through periodic aperture arrays
Abstract We investigate the problem of designing periodic aperture arrays in a thin, perfect electric conductor, such that transmission energy of time-harmonic electromagnetic plane waves through the apertures attains a specified profile with respect to frequency. We first formulate a mathematical model for the electromagnetic transmission problem, and describe a regularized numerical discretization. We then formulate the design problem as a mathematical optimization in which an objective is minimized with respect to a discrete characteristic function describing aperture shape and topology. A level-set method combined with a filtering technique and a gradient-based minimization algorithm numerically solves the problem. Several numerical examples are presented which show that although it is possible to obtain improved transmission spectra, the problem is underposed and subject to numerical instability.
Optimization of transmission spectra through periodic aperture arrays
Dobson, David C. (Autor:in) / Wadbro, Eddie (Autor:in)
2010
Aufsatz (Zeitschrift)
Englisch
Optimization of transmission spectra through periodic aperture arrays
| Springer Verlag | 2010
Extraordinary Transmission through Periodic Arrays of Subwavelength Metal by Coating
| British Library Online Contents | 2010
Developments in Gd2O2S based pixelated-metallic aperture arrays
| British Library Conference Proceedings | 2022
| British Library Online Contents | 2010
Interaction of periodic arrays of wing cracks
| British Library Online Contents | 2018