Photoconductive emitters for pulsed terahertz generation

DR Bacon, J Madéo, KM Dani - Journal of Optics, 2021 - iopscience.iop.org
Conceived over 30 years ago, photoconductive (PC) emitters have proved essential in the
development and spread of terahertz technology. Since then, not only have they been used …

Increasing the sensitivity of terahertz split ring resonator metamaterials for dielectric sensing by localized substrate etching

K Meng, SJ Park, AD Burnett, T Gill, CD Wood… - Optics express, 2019 - opg.optica.org
We demonstrate a significant enhancement in the sensitivity of split ring resonator terahertz
metamaterial dielectric sensors by the introduction of etched trenches into their inductive …

Terahertz dielectric property characterization of photopolymers for additive manufacturing

N Duangrit, B Hong, AD Burnett, P Akkaraekthalin… - IEEE …, 2019 - ieeexplore.ieee.org
In this paper, resin-based photocurable polymer materials for stereolithography, digital-light-
processing (DLP), and polymer-jetting additive manufacturing techniques were …

Towards intense THz spectroscopy on water: Characterization of optical rectification by GaP, OH1, and DSTMS at OPA wavelengths

F Novelli, B Guchhait, M Havenith - Materials, 2020 - mdpi.com
Water is the most prominent solvent. The unique properties of water are rooted in the
dynamical hydrogen-bonded network. While TeraHertz (THz) radiation can probe directly …

[HTML][HTML] Coherent terahertz microscopy of modal field distributions in micro-resonators

N Sulollari, J Keeley, SJ Park, P Rubino, AD Burnett… - APL Photonics, 2021 - pubs.aip.org
Near-field microscopy techniques operating in the terahertz (THz) frequency band offer the
tantalizing possibility of visualizing with nanometric resolution the localized THz fields …

Wideband dielectric properties of silicon and glass substrates for terahertz integrated circuits and microsystems

N Chudpooti, N Duangrit, AD Burnett… - Materials Research …, 2021 - iopscience.iop.org
This paper presents a comprehensive study of the optical and electrical dielectric material
properties of six commonly-used silicon and glass substrates at terahertz (THz) frequencies …

Tunable broadband terahertz polarizer using graphene-metal hybrid metasurface

K Meng, SJ Park, LH Li, DR Bacon, L Chen, K Chae… - Optics …, 2019 - opg.optica.org
We demonstrate an electrically tunable polarizer for terahertz (THz) frequency
electromagnetic waves formed from a hybrid graphene-metal metasurface. Broadband (> 3 …

Effects of structural ordering on infrared active vibrations within

CS Knox, MT Vaughan, AD Burnett, M Ali, S Sasaki… - Physical Review B, 2022 - APS
We performed a materials investigation into the properties of the THz conductivity spectra in
the ternary alloy Bi 2 (Te (1− x) Se x) 3 as a function of selenium fraction, x, and temperature …

Photoconductive arrays on insulating substrates for high-field terahertz generation

DR Bacon, TB Gill, M Rosamond, AD Burnett… - Optics …, 2020 - opg.optica.org
We report on the design, fabrication and characterisation of large-area photoconductive THz
array structures, consisting of a thin LT-GaAs active region transferred to an insulating …

Optical conductivity of a Bi2Se3 topological insulator with a THz transparent top gate

CS Knox, MT Vaughan, NR Fox, A Yagmur… - …, 2024 - degruyter.com
We have performed an investigation into the optical conductivity and magnetotransport
properties of top-gated devices patterned on the topological insulator Bi2Se3 in order to …