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Simulation and design of MIM nanoresonators for color filter applications
Author(s) -
Banerjee Saswatee
Publication year - 2016
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.453
Subject(s) - materials science , insulator (electricity) , grating , color filter array , refractive index , finite difference time domain method , color gel , plasmon , optics , optoelectronics , metal insulator metal , monochromatic color , transmission (telecommunications) , filter (signal processing) , optical filter , high refractive index polymer , layer (electronics) , computer science , physics , thin film transistor , nanotechnology , telecommunications , quantum mechanics , voltage , computer vision , capacitor
We simulated metal–insulator–metal (MIM) nanoresonator structures that can be realized by sandwiching an insulator layer between two metal grating layers with subwavelength periods and heights. Simulation results indicate that it is possible to use relatively low refractive index polymeric materials as the insulator layer and such MIM structures can function as color filters with reasonably narrow bandwidths in transmission mode. Such color filters being superior in performance might find application in liquid crystal display devices replacing the conventional color filters. Simulations suggest that development of plasmonic modes at the metal–insulator interfaces might be responsible for the filter‐like transmission behavior of such structures. The transmission peaks can be tuned by changing the heights of the two grating layers and the refractive index of the insulator layer. Transmission peak is red‐shifted as insulator layer refractive index increases. Simulations were carried out using a home‐grown, monochromatic version of recursive convolution finite‐difference time‐domain method.