Near-IR wide-field-of-view Huygens metalens for outdoor imaging applications

Nanophotonics

article

Jacob Engelberg¹  Chen Zhou²  Noa Mazurski¹  Jonathan Bar-David¹  Anders Kristensen²  Uriel Levy¹ 

[1] Department of Applied Physics, The Faculty of Science, The Center for Nanoscience and Nanotechnology, The Hebrew University Jerusalem Israel;Department of Micro- and Nanotechnology, Technical University of Denmark;Department of Health Technology, Technical University of Denmark

关键词: metalens;    metasurface;    diffractive lens;    imaging;    optical testing;   

DOI  :  10.1515/nanoph-2019-0177

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

The ongoing effort to implement compact and cheap optical systems is the main driving force for the recent flourishing research in the field of optical metalenses. Metalenses are a type of metasurface, used for focusing and imaging applications, and are implemented based on the nanopatterning of an optical surface. The challenge faced by metalens research is to reach high levels of performance using simple fabrication methods suitable for mass production. In this paper, we present a Huygens nanoantenna-based metalens, designed for outdoor photographic/surveillance applications in the near infrared. We show that good imaging quality can be obtained over a field of view as large as ±15°. This first successful implementation of metalenses for outdoor imaging applications is expected to provide insight and inspiration for future metalens imaging applications.

【 授权许可】

CC BY