Results 51 to 60 of about 48,397 (306)
Interferometry-aided terahertz time-domain spectroscopy
Optics Express, 2017 Terahertz time-domain spectroscopy as well as all optical pump-probe techniques with ultrashort pulses relies on the exact knowledge of an optical delay between related laser pulses. Classical realizations of the measurement principle vary the optical path length for one of the pulses by mechanical translation of optical components. Most commonly, only
Daniel, Molter +4 more
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Application of terahertz spectroscopy to the characterization of biological samples using birefringence silicon grating [PDF]
, 2012 We present a device and method for performing vector transmission spectroscopy on biological specimens at terahertz (THz) frequencies. The device consists of artificial dielectric birefringence obtained from silicon microfluidic grating structures. The
Born, Nagai, Rytov, Saha, Shimul C. Saha
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Insights into a Mineral Resource Chlorite Mica Carbonate Schist by Terahertz Spectroscopy Technology
Energies, 2022 Nowadays, the mineral resources formed by geological processes have been effectively utilized with the boom exploration of novel technologies. Traditional analytical methods, such as X-ray Fluorescence, X-ray diffraction, and Scanning electron microscopy,
Meihui Yang +6 more
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IEEE Access, 2020 The optical properties of polymers and glasses useful for terahertz applications are experimentally characterized using terahertz time-domain spectroscopy (THz-TDS). A standard system setup utilizing transmission spectroscopy is used to measure different
Md Saiful Islam +9 more
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Step-scan time-domain terahertz magneto-spectroscopy
Optics Express, 2012 We present a novel approach for terahertz time-domain spectroscopy of magneto-optic phenomena. The setup used in this work combines a tabletop pulsed magnet and a standard terahertz time-domain spectroscopy system. The approach is based on repetitive operation of the pulsed magnet and step-wise increment of the delay time of the time-domain ...
Molter, D. +5 more
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Dual terahertz comb spectroscopy with a single free-running fibre laser [PDF]
, 2018 Dual THz comb spectroscopy has the potential to be used as universal THz spectroscopy with high spectral resolution, high spectral accuracy, and broad spectral coverage; however, the requirement for dual stabilized femtosecond lasers hampers its ...
Hu, Guoqing +8 more
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Electromechanically Tunable Metasurface Transmission Waveplate at Terahertz Frequencies
, 2017 Dynamic polarization control of light is essential for numerous applications ranging from enhanced imaging to materials characterization and identification.
Averitt, Richard D. +6 more
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Observation of coherent delocalized phonon-like modes in DNA under physiological conditions [PDF]
, 2016 Underdamped terahertz-frequency delocalized phonon-like modes have long been suggested to play a role in the biological function of DNA. Such phonon modes involve the collective motion of many atoms and are prerequisite to understanding the molecular ...
Ellis, Elizabeth M. +6 more
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Terahertz time-domain spectroscopy of chondroitin sulfate
Biomedical Optics Express, 2018 Chondroitin sulfate (CS), derived from cartilage tissues, is an important type of biomacromolecule. In this paper, the terahertz time-domain spectroscopy (THz-TDS) was investigated as a potential method for content detection of CS. With the increase of the CS content, the THz absorption coefficients of the CS/polyethylene mixed samples linearly ...
Changcheng, Shi +10 more
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Terahertz Magneto Optical Polarization Modulation Spectroscopy
, 2012 We report the development of new terahertz techniques for rapidly measuring the complex Faraday angle in systems with broken time-reversal symmetry using the cyclotron resonance of a GaAs two-dimensional electron gas in a magnetic field as a system for ...
Aguilar +30 more
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