Transverse unidirectional scattering generation method based on irregular V-shaped nano antenna

The invention relates to a transverse unidirectional scattering generation method based on an irregular V-shaped nano antenna. The method comprises the following steps: generating unidirectional scattering as a design target; generating a regular V-shaped nano-structure image closest to a design tar...

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Hauptverfasser: LI YUANHAO, ZHAO FENG, ZHONG SHUTONG, ZENG MING, MENG CHANG, WANG XIANGHUI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to a transverse unidirectional scattering generation method based on an irregular V-shaped nano antenna. The method comprises the following steps: generating unidirectional scattering as a design target; generating a regular V-shaped nano-structure image closest to a design target; carrying out scaling processing, randomly filling pixel values at the periphery of the contour, amplifying and adjusting an image binarization threshold value to obtain an irregular V-shaped nano-structure image; obtaining scattering distribution of the irregular V-shaped nanostructure image through a finite difference time domain algorithm; obtaining a prediction model of the irregular V-shaped nano-structure image by using the labeled sample and adopting mean square error loss; and optimizing the regular V-shaped nano-structure image according to a design target by combining the prediction model and Bayesian optimization, and generating the irregular V-shaped nano-antenna of which the directional scattering