John F. O'Hara

TL;DR: In this article, the authors demonstrate enhanced terahertz detection using photoconductive antennas based on self-assembled ErAs:GaAs nanoisland superlattices.

TL;DR: This paper describes the electronic control of extraordinary terahertz transmission through subwavelength metal hole arrays fabricated on doped semiconductor substrates using a Schottky diode structure, and achieves an intensity modulation depth of 52% by changing the voltage bias between 0 and 16 volts.

TL;DR: The experimental results on double split-ring resonators made from different metals confirm the recent numerical simulations that metamaterials exhibit permittivity-dependent resonant properties, and it is found that metAMaterials made even from a generally poor metal become highly resonant owing to a drastic increase in the value of thepermittivity at terahertz frequencies.

TL;DR: Experimental and numerical investigations of planar terahertz metamaterial structures designed to interact with the state of polarization results in unique amplitude and phase characteristics of the terAhertz transmission, providing the basis for polarimetric teraHertz devices.

TL;DR: In this paper, the authors demonstrate reconfigurable terahertz metamaterial (MM) in which constituent resonators can be switched from split-ring resonators (SRRs) to closed ring resonators via optical excitation of silicon islands strategically placed in the split gap.