Case studies of electrical characterisation of graphene by terahertz time-domain spectroscopy

PR Whelan, B Zhou, O Bezencenet… - 2D …, 2021 - iopscience.iop.org
Graphene metrology needs to keep up with the fast pace of developments in graphene
growth and transfer. Terahertz time-domain spectroscopy (THz-TDS) is a non-contact, fast …

Artificial neural networks for material parameter extraction in terahertz time-domain spectroscopy

N Klokkou, J Gorecki, JS Wilkinson… - Optics …, 2022 - opg.optica.org
Terahertz time-domain spectroscopy (THz-TDS) is a proven technique whereby the complex
refractive indices of materials can be obtained without requiring the use of the Kramers …

Reference-free THz-TDS conductivity analysis of thin conducting films

PR Whelan, Q Shen, D Luo, M Wang, RS Ruoff… - Optics …, 2020 - opg.optica.org
We present a reference-free method to determine electrical parameters of thin conducting
films by steady state transmission-mode terahertz time-domain spectroscopy (THz-TDS). We …

Optically Defined Reconfigurable THz Metasurfaces using Graphene on Iron‐Doped Lithium Niobate

J Gorecki, A Noual, S Mailis… - Advanced Photonics …, 2022 - Wiley Online Library
Graphene plasmonic devices have been demonstrated to show great potential for
reconfigurable metasurfaces due to the tuneable electronic charge transport properties of …

Deep neural network ensembles for THz-TDS refractive index extraction exhibiting resilience to experimental and analytical errors

N Klokkou, J Gorecki, B Beddoes, V Apostolopoulos - Optics Express, 2023 - opg.optica.org
Terahertz time-domain spectroscopy (THz-TDS) achieves excellent signal-to-noise ratios by
measuring the amplitude of the electric field in the time-domain, resulting in the full, complex …

THz-TDS parameter extraction: Empirical correction terms for the analytical transfer function solution

J Gorecki, V Apostolopoulos - Applied Optics, 2021 - opg.optica.org
Terahertz time-domain spectroscopy (TDS) is capable of determining both real and
imaginary refractive indices of a wide range of material samples; however, converting the …

Integrating Terahertz Time-Domain Spectroscopy with microfluidic platforms and machine learning for protein hydration studies

N Klokkou - 2023 - eprints.soton.ac.uk
Terahertz Time-Domain Spectroscopy (THz-TDS) has been widely adopted as a technique
of choice for sub-millimetre research over the last three decades, thanks to its high signal-to …

Field-resolved, far-field characterization of air bubbles in liquid water

A Srivastava, A Herbst, H Fattahi - 2024 IEEE Photonics …, 2024 - ieeexplore.ieee.org
Field-resolved spectroscopy at near-petahertz frequency, femtosecond fieldoscopy, is
emerging as a powerful technique for investigating resonance constituents of samples in …

Simulation of THz-TDS echo filtering algorithm based on deep learning

H Zhang, Y Zhao, C Zhang - Infrared, Millimeter-Wave, and …, 2020 - spiedigitallibrary.org
We analyzed the reasons why ZnTe generates terahertz echo. Based on the Gaussian
beam, the terahertz signal with echo is produced by simulation. In this paper, the …