Tunable multi-channeled filter based on ultra-compact coupled-resonators
Center of Information and Laboratory, China University of Geosciences, Wuhan, 430074, P.R. China
2 Department of Physics, Zhenjiang Watercraft College, Zhenjiang, 212003, P.R. China
Corresponding author: firstname.lastname@example.org
Accepted: 15 September 2010
Published online: 30 November 2010
A multi-channeled filter that bases on the effect of photon tunneling through the coupled-cavity resonators is designed. Applying the tight-binding model and the transfer matrix method we analyze its transmission mechanism and study its transmission properties. Through the coupling of cavities, the single resonant mode is split into some discrete resonant peaks forming many transmission channels. Through adjusting the thickness of air layer we make the intervals of channels approximately equivalent. The whole position of channels can be moved through changing the incident angle.
© EDP Sciences, 2010