Decoupling substrate thickness and refractive index measurement in THz time-domain spectroscopy

F Vandrevala, E Einarsson - Optics express, 2018 - opg.optica.org
Terahertz time-domain spectroscopy (THz–TDS) relies heavily on knowing precisely the
thickness or refractive index of a material. In practice, one of these values is assumed to be …

Material parameter estimation with terahertz time-domain spectroscopy

TD Dorney, RG Baraniuk, DM Mittleman - JOSA A, 2001 - opg.optica.org
Imaging systems based on terahertz (THz) time-domain spectroscopy offer a range of
unique modalities owing to the broad bandwidth, subpicosecond duration, and phase …

High-precision THz-TDS via self-referenced transmission echo method

J Gorecki, N Klokkou, L Piper, S Mailis… - Applied Optics, 2020 - opg.optica.org
Terahertz time-domain spectroscopy (TDS) is a powerful characterization technique which
allows for the frequency-dependent complex refractive index of a sample to be determined …

1.5 port vector Spectrometer for terahertz time Domain spectroscopy

FR Faridi, U Nandi, S Preu - 2018 43rd International …, 2018 - ieeexplore.ieee.org
We demonstrate a spectrometer capable of measuring terahertz time domain transmission
and reflection spectroscopy simultaneously in a single setup. This facilitates highly accurate …

Phase retrieval in terahertz time-domain measurements: a “how to” tutorial

PU Jepsen - Journal of Infrared, Millimeter, and Terahertz Waves, 2019 - Springer
Terahertz time-domain spectroscopy (THz-TDS) is in many ways a well-established, proven,
and versatile spectroscopic technique that is frequently and routinely used in many …

Highly precise determination of optical constants and sample thickness in terahertz time-domain spectroscopy

L Duvillaret, F Garet, JL Coutaz - Applied optics, 1999 - opg.optica.org
Time-domain spectroscopy allows fast and broadband measurement of the optical constants
of materials in the terahertz domain. We present a method that improves the determination of …

Compact, low-cost, and broadband terahertz time-domain spectrometer

N Couture, J Schlosser, A Ahmed, M Wahbeh… - Applied Optics, 2023 - opg.optica.org
Terahertz time-domain spectroscopy (THz-TDS) is a powerful technique that enables the
characterization of a large range of bulk materials, devices, and products. Although this …

Numerical phase correction method for terahertz time-domain reflection spectroscopy

EM Vartiainen, Y Ino, R Shimano… - Journal of Applied …, 2004 - pubs.aip.org
The terahertz time-domain spectroscopy 1 (THz-TDS) has recently emerged as a powerful
tool in investigation of dielectrics, semiconductors, and superconductors in the far infrared …

Sample thickness measurement with THz-TDS: Resolution and implications

CY Jen, C Richter - Journal of Infrared, Millimeter, and Terahertz Waves, 2014 - Springer
The accuracy of any measurement with terahertz time-domain spectroscopy (THz-TDS)
depends strongly on knowing and supplying the precise sample thickness when processing …

A review on numerical methods for thickness determination in terahertz time-domain spectroscopy

S Mukherjee, NMA Kumar, PC Upadhya… - The European Physical …, 2021 - Springer
The use of numerical methods for thickness extraction in terahertz time-domain
spectroscopy (THz-TDS) is highly deterministic in improving the accuracy of optical …