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In physics, terahertz time-domain spectroscopy (THz-TDS) is a spectroscopic technique in which the properties of matter are probed with short pulses of terahertz radiation. The generation and detection scheme is sensitive to the sample's effect on both the amplitude and the phase of the terahertz radiation. Fourier transform of the above pulse.
Terahertz spectroscopy detects and controls properties of matter with electromagnetic fields that are in the frequency range between a few hundred gigahertz and several terahertz (abbreviated as THz).
Recently developed methods of THz time-domain spectroscopy (THz TDS) and THz tomography have been shown to be able to image samples that are opaque in the visible and near-infrared regions of the spectrum.
Terahertz tomography is a class of tomography where sectional imaging is done by terahertz radiation. Terahertz radiation is electromagnetic radiation with a frequency between 0.1 and 10 THz; it falls between radio waves and light waves on the spectrum; it encompasses portions of the millimeter waves and infrared wavelengths.
Time-resolved spectroscopy. In physics and physical chemistry, time-resolved spectroscopy is the study of dynamic processes in materials or chemical compounds by means of spectroscopic techniques. Most often, processes are studied after the illumination of a material occurs, but in principle, the technique can be applied to any process that ...
Terahertz imaging is an emerging and significant nondestructive evaluation (NDE) technique used for dielectric (nonconducting, i.e., an insulator) materials analysis and quality control in the pharmaceutical, biomedical, security, materials characterization, and aerospace industries. [3][4] It has proved to be effective in the inspection of layers in paints and coatings, [5] detecting ...
Anisotropic terahertz microspectroscopy measures the spatial orientation-dependence of molecular vibrations in anisotropic materials using a rotated polarized THz electric field. Anisotropic terahertz microspectroscopy ( ATM) is a spectroscopic technique in which molecular vibrations in an anisotropic material are probed with short pulses of ...
Advantest's new terahertz wave spectroscopy and imaging analysis platform meets these requirements, and is positioned to help researchers make gains in accuracy and R&D efficiency.
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