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Metal-wire terahertz time-domain spectroscopy
Applied Physics Letters, 2005Terahertz (THz) pulses propagating on a metal-wire waveguide are used to perform terahertz time-domain spectroscopy of lactose powder dispersed on top of the wire. The THz pulses are generated by a photoconductive switch at one end of the metal wire and are detected at the other end by electro-optic sampling in a ZnTe crystal that can be moved parallel
Walther, Markus +2 more
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Terahertz Hyper-Raman Time-Domain Spectroscopy
ACS Photonics, 2019A new spectroscopic method has been demonstrated on the benchmark crystal α-SiO2. The new technique makes use of femtosecond optical pulses and intense, sub-ps, broadband terahertz (THz) pulses to ...
Rubano A. +3 more
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Pressure-dependent terahertz time-domain spectroscopy
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016We implemented pressure-dependent terahertz time-domain spectroscopy. Compared with traditional far-IR spectroscopy with a diamond anvil cell, we can measure at much lower frequencies, down to 0.1 THz, giving us access to many interesting dynamics. The pressure tuning range is from room pressure to 5 kpsi, while the temperature tuning range is from 77 ...
W. Zhang, D. V. Nickel, D. M. Mittleman
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Terahertz time-domain spectroscopy
Nature Reviews Methods Primers, 2023Martin Koch +3 more
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Tera Tool [terahertz time-domain spectroscopy]
IEEE Circuits and Devices Magazine, 2002The terahertz differential time-domain spectroscopic method is applied to characterize the dielectric and optical properties of a variety of thin films at terahertz frequency. The results of several samples including silicon dioxide, parylene-n polymer film, tantalum oxide film, and protein thin layer samples were presented.
null Kwang-Su Lee +2 more
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Terahertz time-domain spectroscopy: advanced techniques
2020International ...
Coutaz, Jean-Louis, Shkurinov, Alexander
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Time-Domain Terahertz Spectroscopy and Sensing
2001Spectroscopy in the terahertz (THz) region of the electromagnetic spectrum is an important and growing field of research with a broad range of applications. The characteristic properties of THz radiation (1 THz = 1012 Hz), localised between the infrared and the microwave frequencies, suggest many applications in the spectroscopy of gases, liquids and ...
P. Haring Bolivar +4 more
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On-Chip Terahertz Time-Domain Spectroscopy
2021Terahertz time-domain spectroscopy (THz-TDS) allows the direct measurement of optical and charge carrier properties of materials in a region of the electromagnetic spectrum inaccessible to most other spectroscopic techniques. We have adapted the technique to an on-chip arrangement that allows us to measure these properties in nanoscale materials with ...
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Material parameter estimation with terahertz time-domain spectroscopy
Journal of the Optical Society of America A, 2001Imaging systems based on terahertz (THz) time-domain spectroscopy offer a range of unique modalities owing to the broad bandwidth, subpicosecond duration, and phase-sensitive detection of the THz pulses. Furthermore, the possibility exists for combining spectroscopic characterization or identification with imaging because the radiation is broadband in ...
T D, Dorney +2 more
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Far-infrared terahertz time-domain spectroscopy of flames
Optics Letters, 1995We present what is to our knowledge the first comprehensive far-infrared absorption measurement of flames. These measurements, covering the region of 7-88 wave numbers (0.2-2.65 THz) are only now made possible by the technique of terahertz time-domain spectroscopy. We observe a large number of absorption lines-including those of water, CH, and NH(3)-in
R A, Cheville, D, Grischkowsky
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