A team of physicists at the University of Sussex are developing the science to create a safe and efficient 'paint' that can reveal, with terahertz (THz) radiation, the contents of luggage or objects hidden in clothing.
Optics & Photonics
Apr 10, 2018
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91
Uppsala physicists have in an international collaboration developed a new method for creating laser pulses which are shorter, have much higher intensity and cover the THz frequency range better than current sources. The study ...
Optics & Photonics
May 24, 2016
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25
(Phys.org)—In living organisms, biomolecules such as proteins are constantly in complex motion, bending and flexing in different ways at different points. Each molecule has its own vibrational dynamics which affects its ...
General Physics
Sep 28, 2012
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0
(Phys.org) -- A team of researchers at Boston University (BU), Massachusetts Institute of Technology (MIT) and a number of other institutions recently observed that certain materials undergo an insulator-to-metal transition ...
Condensed Matter
Jul 25, 2012
5
0
Perfect absorption arises from the strong interaction of valence electrons with light in a conducting material. Optical metamaterial is an effective approach to exploit the superior photon capture capability. Thus, the perfect ...
Optics & Photonics
Apr 1, 2024
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24
The terahertz (THz) gap, a frequency band lying between the microwave and infrared regions of the electromagnetic spectrum where conventional technologies are inefficient in generating and detecting the radiation, is being ...
Optics & Photonics
Feb 7, 2023
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19
Terahertz (THz, 1,011~1,013 Hz) related technology, with its superior spectral performance, has wide application potential in fields like communication, security, sensing, etc.
Condensed Matter
Nov 10, 2021
0
15
Radiation at terahertz frequencies (wavelengths between 0.03 and 0.3 mm) can be used successfully to analyze the structural dynamics of water and biomolecules. But applying the technique to aqueous solutions and tissues remains ...
Optics & Photonics
Apr 20, 2021
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6
Terahertz (THz) waves, located between the millimeter and far-infrared frequency ranges, are an electromagnetic frequency band that is as-yet incompletely recognized and understood. Xiaojun Wu of Beihang University leads ...
Optics & Photonics
Nov 2, 2020
0
22
Laser-induced ionization in matter—gas, cluster, liquid, and solid—occurs when a laser pulse with sufficient intensity is focused into a target material, creating electrons and ions through nonlinear processes of laser-matter ...
Optics & Photonics
Apr 27, 2020
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