We present optical slot antennas and their applications to photonic devices. We show that
metallic nanoslots have the properties of a slot antenna by measuring the transmission …

Recent technological advances in fabrication methods have allowed researchers to
manipulate light–matter interactions in the subwavelength region and develop a wide variety …

In this study we report the first on the terahertz (THz) transmission characteristics of a guided-
mode resonance (GMR) filter made of all-dielectric material. Two strong transverse electric …

Bethe's theory predicts that scattering by a small hole on a thin perfect electric conductor
(PEC) is presented as radiation by an in-plane magnetic dipole of the incident magnetic field …

Nanogap slits can operate as a plasmonic Fabry–Perot cavity in the visible and infrared
ranges due to the gap plasmon with an increased wavenumber. Although the properties of …

Critical factors for terahertz polarizers include broadband operation, high transmittance, and
a good extinction ratio. In this paper, using a 5 nm-wide metallic slit array with a 200 nm …

We report the development of a theoretical model describing the strong field tunneling of
electrons in an extremely small nanogap (having a width of a few nanometers) that is driven …

In this thesis, I studied the utilization of air-filled metallic nanogaps for optical and
electrochemical applications. Using atomic layer lithography, spacer-filled nanogaps are …

In this work, photoresist polymerization near the nanogap with feature sizes much smaller
than the diffraction limit was discussed. Firstly, how to make the deep-subwavelength gap …