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 language | English |
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Title of host publication | Physics and Simulation of Optoelectronic Devices XXIII |
Editors | Bernd Witzigmann, Yasuhiko Arakawa, Fritz Henneberger, Marek Osinski |
Publisher | SPIE |
ISBN (Electronic) | 9781628414479 |
DOIs | |
State | Published - 2015 |
Event | 23rd SPIE Conference on Physics and Simulation of Optoelectronic Devices - San Francisco, United States Duration: 9 Feb 2015 → 12 Feb 2015 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 9357 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | 23rd SPIE Conference on Physics and Simulation of Optoelectronic Devices |
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Country/Territory | United States |
City | San Francisco |
Period | 9/02/15 → 12/02/15 |
Bibliographical note
Publisher Copyright:© 2015 SPIE.
Keywords
- FDTD method
- asymmetric aperture
- computer simulation
- infrared image sensors
- plasmonic color filters
- transmission spectrum