Results 291 to 300 of about 48,397 (306)

Distinguishing pericarpium citri reticulatae of different origins using terahertz time-domain spectroscopy combined with convolutional neural networks.

Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, 2023
Hongbin Pu, Jingxiao Yu, Da‐Wen Sun, Qingyi Wei, Qian Li   +4 more
semanticscholar   +1 more source

Terahertz Time-Domain Spectroscopy of Selected Layered Silicates

Clays and Clay Minerals, 2009
AbstractMicaceous layer silicate clay minerals are attractive materials for applications involving non-linear optics because of their low cost and ability to form well ordered, platy aggregates, but such applications require precise knowledge of the dielectric behavior of the clay.
Janek, Marián, Bugár, Ignác, Lorenc, Dusan, Szöcs, Vojtech, Velic, Dusan, Chorvát, Dusan   +5 more
openaire   +2 more sources

Determination of Cellulose Crystallinity by Terahertz-Time Domain Spectroscopy

Analytical Chemistry, 2014
Terahertz-time domain spectroscopy (THz-TDS) has the ability to probe the crystallinity of several materials, due to the interaction of THz radiation with optical phonons in crystal lattices. In this work, THz-TDS has been used to quantify the degree of crystallinity of microcrystalline cellulose (MCC) samples.
Vieira, Francisco Senna, Pasquini, Celio
openaire   +2 more sources

Polarization-Resolved Terahertz Time-Domain Spectroscopy

Journal of Infrared, Millimeter, and Terahertz Waves, 2011
Measuring the full polarization state of radiation in terahertz time-domain spectroscopy has allowed scientists to study a number of complex dielectric anisotropic properties of materials that could not be easily measured before. Novel polarization sensitive photoconductive detectors have simplified this task and their development has been a ...
openaire   +1 more source

Terahertz time-domain spectroscopy of thin and flexible CNT-modified MXene/polymer composites

Applied Physics A, 2021
K. Hussain, Shoaib Mehboob, Izhar Ahmad, Muhammad Mumtaz, A. R. Khan, Syed Mujtaba-ul-Hassan, M. Mehran, Z. Iqbal, J. Ahmad, M. Mehmood, Faisal Shahzad   +10 more
semanticscholar   +1 more source

Principles of Terahertz Time-Domain Spectroscopy

2018
International ...
Coutaz, Jean-Louis, Garet, Frédéric, Vincent, Wallace   +2 more
openaire   +1 more source

Recent Advances in Terahertz Time-Domain Spectroscopy and Imaging Techniques for Automation in Agriculture and Food Sector

Food Analytical Methods, 2021
Khushbu S, Yashini M, Ashish Rawson, S. C. K.   +3 more
semanticscholar   +1 more source

Terahertz Time-Domain Spectroscopy of Glasses

2019
Terahertz-time domain spectroscopy () uses the real and imaginary parts of the dielectric and optical constants for glass characterization over a wide frequency range in the electromagnetic spectrum. This chapter provides an overview and analysis of various THz spectrometers and typical data sets over \(0.1{-}10\,{\mathrm{THz}}\).
openaire   +1 more source

Time-Domain and Ultrafast Terahertz Spectroscopy

2016
Many basic condensed matter properties and phenomena are governed by the spectrum of electronic and vibrational degrees of freedom at low energies, comparable to the Boltzmann thermal energy (kBT). They determine both the material’s ground state at finite temperature and its dynamical response to electromagnetic or electronic perturbations.
openaire   +1 more source

Advances in terahertz time-domain spectroscopy of pharmaceutical solids: A review

, 2021
P. Bawuah, J. Zeitler
semanticscholar   +1 more source