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Plasmonic color filters to decrease ambient light errors on active type dual band infrared image sensors

Title
Plasmonic color filters to decrease ambient light errors on active type dual band infrared image sensors
Authors
Lyu, Hong-KunPark, Young-JinCho, Ho YoungJo, Sung-HyunLee, Hee-HoShin, Jang-Kyoo
DGIST Authors
Lyu, Hong-Kun; Cho, Ho Young
Issue Date
2014
Citation
Metamaterials: Fundamentals and Applications 2014, 9160
Type
Conference
Article Type
Conference Paper
ISBN
9780000000000
ISSN
0277-786X
Abstract
In this paper, we proposed the plasmonic color filters to decrease ambient light errors on active type dual band infrared image sensors for a large-area multi-touch display system. Although the strong point of the touch display system in the area of education and exhibition there are some limits of the ambient light. When an unexpected ambient light incidents into the display the touch recognition system can make errors classifying the touch point in the unexpected ambient light area. We proposed a new touch recognition image sensor system to decrease the ambient light error and investigated the optical transmission properties of plasmonic color filters for IR image sensor. To find a proper structure of the plasmonic color filters we used a commercial computer simulation tool utilizing finite-difference time-domain (FDTD) method as several thicknesses and whit the cover passivation layer or not. Gold (Au) applied for the metal film and the dispersion information associated with was derived from the Lorentz-Drude model. We also described the mechanism applied the double band filter on the IR image sensors. © 2014 SPIE.
URI
http://hdl.handle.net/20.500.11750/5492
DOI
10.1117/12.2063077
Publisher
SPIE
Related Researcher
Files:
There are no files associated with this item.
Collection:
Intelligent Devices and Systems Research Group2. Conference Papers


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