Gallium nitride (GaN) is one of the most technologically important semiconductors and a
fundamental component in many optoelectronic and power devices. Low-resistivity GaN …

Homoepitaxial film and semi-insulating bulk β-Ga 2 O 3 with (001) orientation were studied
using terahertz time-domain spectroscopy (THz-TDS) in the frequency region from 0.2 to 3.0 …

Electro-optic (EO) sampling is employed to measure the electric field profiles generated by a
relativistic electron bunch along the propagation and in the radial directions. The …

A magnetically and electrically polarization-tunable terahertz emitter that integrates a
ferromagnetic heterostructure and large-birefringence liquid crystals is demonstrated. The …

This Letter describes a super-oscillatory lens (SOL), with concentric ring-type metallic slits
photolithographically fabricated on a glass substrate, that can function at subterahertz …

Terahertz (THz) radiation with frequencies between 100 GHz and 30 THz has numerous
applications in basic science, materials characterization, imaging, sensor technologies, and …

Substantial enhancement of terahertz magnetic near field achieved by the combination of a
tapered metallic waveguide and a micro-split-ring resonator is demonstrated. The magnetic …

We report the strong yellow emission of bulk ZnO single crystals irradiated with the high-
power gyrotron beam. Hydrothermally grown bulk crystals with high conductivity are …

Due to its efficient coupling with electron spins, the application of terahertz magnetic
nearfield in metallic microstructures has been attracting attention. While paramagnetic …

We demonstrate a new method to detect terahertz (THz) power using a temperature-
supersensitive capsulized cholesteric liquid crystal film based on the thermochromic and …