All-dielectric metasurface lenses for focal plane arrays operating in mid-wave infrared spectrum

Nazmi Yilmaz, Aytekin Ozdemir, Fehim T. Bagci, Yuzuru Takashima, Hamza Kurt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Focal plane arrays (FPAs) as a two-dimensional detector pixel matrix positioned in the focal plane of an optical system have been developed continuously for obtaining higher resolution. On the other hand, for developing highresolution, compact-size FPAs, used methods such as the miniaturization of pixel size leads to serious problems such as increased optical crosstalk. In this study, we proposed highly efficient all-dielectric metasurface lens arraybased FPA at mid-wave infrared spectrum. All-dielectric metasurface lens arrays were numerically demonstrated to achieve high optical efficiency above 85%. Moreover, our design compared with conventional and earlier metasurface-based studies has exhibited much superior optical crosstalk performance. While standing the high efficiency, optical crosstalk is decreased to low level of ≤ 2.8%. A figure-of-merit (FoM) is also defined for the device performance, which is designated as the focusing efficiency per optical crosstalk times the f-number. The results show that a FOM of approximately 90 is achieved. These proposed all-dielectric metasurface lens arrays demonstrate great potential for increasing the signal to noise ratio and sensitivity thus paving the way for compactsize and high-resolution FPAs to be deployed in various applications including thermal cameras, imaging devices and bolometers.

Original languageEnglish (US)
Title of host publicationMetamaterials, Metadevices, and Metasystems 2018
EditorsNikolay I. Zheludev, Nader Engheta, Mikhail A. Noginov, Nikolay I. Zheludev
PublisherSPIE
Volume10719
ISBN (Electronic)9781510620094
DOIs
StatePublished - Jan 1 2018
EventMetamaterials, Metadevices, and Metasystems 2018 - San Diego, United States
Duration: Aug 19 2018Aug 23 2018

Other

OtherMetamaterials, Metadevices, and Metasystems 2018
CountryUnited States
CitySan Diego
Period8/19/188/23/18

Keywords

  • All dielectric
  • Focal plane array
  • Metasurface

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Yilmaz, N., Ozdemir, A., Bagci, F. T., Takashima, Y., & Kurt, H. (2018). All-dielectric metasurface lenses for focal plane arrays operating in mid-wave infrared spectrum. In N. I. Zheludev, N. Engheta, M. A. Noginov, & N. I. Zheludev (Eds.), Metamaterials, Metadevices, and Metasystems 2018 (Vol. 10719). [1071915] SPIE. https://doi.org/10.1117/12.2320986