We present a combined experimental and theoretical investigation on the surface electronic structure of truly bulk ZnGa2O4, a transparent conducting oxide with an ultra-wide band gap of 4.6 eV. Angle-resolved photoelectron spectroscopy, X-ray photoelectron spectroscopy and low-energy electron diffraction were used to analyze the electronic band structure, band bending and surface reconstruction respectively. In combination with density functional theory, the experimental results will be discussed to provide the very first insights on the surface electronic properties of ZnGa2O4, to motivate future investigations.
Here, we present 3D solutions of Maxwell’s equations using the finite element method (FEM) for sub-wavelength plasmonic THz antennas in array configurations. We show that mutual coupling between neighboring antennas causes the arrays spectral response to change with different array densities and arrangements. The simulation results of the spectral response of the antennas are in very good agreement to the experiments. Finally, in order to investigate the sensing performance of the antennas, simulations with different feed gap materials were carried out.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.