With the non-ionizing, non-invasive, high penetration, high resolution and spectral
fingerprinting features of terahertz (THz) wave, THz spectroscopy has great potential for the …

This review highlights recent and novel trends focused on metallic (plasmonic) and dielectric
metasurfaces in photoconductive terahertz (THz) devices. We demonstrate the great …

One dimensional sub-wavelength gratings, also known as metagratings have attracted
enormous attention due to the relatively simpler design configurations with versatile …

In this paper, we review the past and recent works on generating intense terahertz (THz)
pulses from photoconductive antennas (PCAs). We will focus on two types of large-aperture …

We report on the design, optimization and fabrication of a plasmon-assisted terahertz (THz)
photoconductive antenna (PCA) for THz pulse generation at low-power optical pumps. The …

We report on a sapphire-fiber-based lens that can be used to enhance the emitted THz
power of a large-area photoconductive antenna (PCA). Using numerical simulations, we …

Terahertz generation through photoconductive antenna (PCA) is quite popular mainly due to
the advancement of nanotechnology and material research. An extensive investigation of …

We present a bias-free photoconductive emitter that uses an array of nanoantennas on an
InGaAs layer with a linearly graded Indium composition. The graded InGaAs structure …

A copper-based plasmonic system is presented to provide optical-to-microwave photon
conversion. The process uses highly excited levels in Cu 2 O Rydberg excitons and takes …

Terahertz (THz) frequencies, despite having the potential for several important applications,
have been relatively underexplored in the past owing to the unavailability of proper sources …