A review of the terahertz conductivity of bulk and nano-materials

J Lloyd-Hughes, TI Jeon - Journal of Infrared, Millimeter, and Terahertz …, 2012 - Springer
We review pioneering and recent studies of the conductivity of solid state systems at
terahertz frequencies. A variety of theoretical formalisms that describe the terahertz …

Metamaterials based on the phase transition of VO2

H Liu, J Lu, XR Wang - Nanotechnology, 2017 - iopscience.iop.org
In this article, we present a comprehensive review on recent research progress in design
and fabrication of active tunable metamaterials and devices based on phase transition of VO …

Terahertz spectroscopy

JB Baxter, GW Guglietta - Analytical chemistry, 2011 - ACS Publications
Overview and Scope. THz radiation, with frequencies in the range of 0.1 À20 THz, can probe
physical phenomena such as low-energy excitations and carrier dynamics in electronic …

Microscopic origin of the Drude-Smith model

TL Cocker, D Baillie, M Buruma, LV Titova, RD Sydora… - Physical Review B, 2017 - APS
The Drude-Smith model has been used extensively in fitting the THz conductivities of
nanomaterials with carrier confinement on the mesoscopic scale. Here, we show that the …

Active and Smart Terahertz Electro-Optic Modulator Based on VO2 Structure

Z Ren, J Xu, J Liu, B Li, C Zhou… - ACS Applied Materials & …, 2022 - ACS Publications
Modulating terahertz (THz) waves actively and smartly through an external field is highly
desired in the development of THz spectroscopic devices. Here, we demonstrate an active …

High Light Absorption and Charge Separation Efficiency at Low Applied Voltage from Sb-Doped SnO2/BiVO4 Core/Shell Nanorod-Array Photoanodes

L Zhou, C Zhao, B Giri, P Allen, X Xu, H Joshi, Y Fan… - Nano …, 2016 - ACS Publications
BiVO4 has become the top-performing semiconductor among photoanodes for
photoelectrochemical water oxidation. However, BiVO4 photoanodes are still limited to a …

Dynamical Control over Terahertz Electromagnetic Interference Shielding with 2D Ti3C2Ty MXene by Ultrafast Optical Pulses

G Li, N Amer, HA Hafez, S Huang, D Turchinovich… - Nano …, 2019 - ACS Publications
High electrical conductivity and strong absorption of electromagnetic radiation in the
terahertz (THz) frequency range by metallic 2D MXene Ti3C2T y make it a promising …

Phase diagram of the ultrafast photoinduced insulator-metal transition in vanadium dioxide

TL Cocker, LV Titova, S Fourmaux, G Holloway… - Physical Review B …, 2012 - APS
We use time-resolved terahertz spectroscopy to probe the ultrafast dynamics of the insulator-
metal phase transition induced by femtosecond laser pulses in a nanogranular vanadium …

A vanadium dioxide metamaterial disengaged from insulator-to-metal transition

YG Jeong, S Han, J Rhie, JS Kyoung, JW Choi… - Nano …, 2015 - ACS Publications
We report that vanadium dioxide films patterned with λ/100000 nanogaps exhibit an
anomalous transition behavior at millimeter wavelengths. Most of the hybrid structure's …

Imaging the nanoscale phase separation in vanadium dioxide thin films at terahertz frequencies

HT Stinson, A Sternbach, O Najera, R Jing… - Nature …, 2018 - nature.com
Vanadium dioxide (VO2) is a material that undergoes an insulator–metal transition upon
heating above 340 K. It remains debated as to whether this electronic transition is driven by …