Open AccessHighly-efficient aperture array terahertz band-pass filtering
Author(s) -
Dmitry S. Bulgarevich,
Makoto Watanabe,
Mitsuharu Shiwa
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.025250
Subject(s) - optics , materials science , terahertz radiation , polarization (electrochemistry) , band pass filter , aperture (computer memory) , transmission (telecommunications) , extraordinary optical transmission , substrate (aquarium) , optical filter , silicon , optoelectronics , surface plasmon polariton , physics , surface plasmon , telecommunications , acoustics , plasmon , chemistry , oceanography , computer science , geology
The array of pointed-shape apertures microfabricated in thin-film aluminum on a thick silicon substrate was designed to maximize the transmission efficiency at desired frequency. The resulted characteristics were over 100% optical transmission (relative to substrate) at narrow band-pass resonance and polarization-independent transmission strength and band-pass shape on filter rotation angle.