Simulation of the influence of asymmetrical metallic apertures of the plasmonic infrared filter

Hong Kun Lyu, Young Jin Park, Hui Sup Cho, Sung Hyun Jo, Jang Kyoo Shin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In recent times, much research in the field of complementary metal oxide semiconductor (CMOS) image sensors (CISs) regarding plasmonic color filters (PCFs) has been reported. In this paper, we investigated the influence of vertically asymmetrical metallic apertures on the extraordinary optical transmission of PCFs. We designed a structural model of the asymmetric cylindrical aperture. In addition, we simulated the spectral variation in the wavelength transmission. For the simulation, we used a commercial computer simulation tool utilizing the FDTD method. SiO was used as the substrate insulator, top-side insulator, and the fill material in the cylindrical aperture. We applied Au as the metal layer; dispersion information for Au was derived from the Lorentz-Drude model. We also presented the electric field distribution under several different conditions at the peak wavelength of the calculated transmission spectrum. Furthermore, we determined the transmittance spectral characteristics and the peak transmittance under several different conditions.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXIII
EditorsBernd Witzigmann, Yasuhiko Arakawa, Fritz Henneberger, Marek Osinski
PublisherSPIE
ISBN (Electronic)9781628414479
DOIs
StatePublished - 2015
Event23rd SPIE Conference on Physics and Simulation of Optoelectronic Devices - San Francisco, United States
Duration: 9 Feb 201512 Feb 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9357
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference23rd SPIE Conference on Physics and Simulation of Optoelectronic Devices
Country/TerritoryUnited States
CitySan Francisco
Period9/02/1512/02/15

Bibliographical note

Publisher Copyright:
© 2015 SPIE.

Keywords

  • FDTD method
  • asymmetric aperture
  • computer simulation
  • infrared image sensors
  • plasmonic color filters
  • transmission spectrum

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