A design method of broadband metalens using time-domain topology optimization

Flat metalenses have attracted attention due to an increasing demand for compact electromagnetic devices. For such applications, broadband metalenses are highly desirable; however, conventional metalenses show relatively narrow band operation. Here, we propose a design method of free-form metalenses...

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Bibliographic Details
Main Authors: H. Yasuda, S. Nishiwaki
Format: Article
Language:English
Published: AIP Publishing LLC 2021-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0048438