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Researchers Create Effective and Economical Sound-Absorbing Nanofoam
18 Jul | AZO NanoFull Text External Link Indicator
“A new breakthrough material capable of reducing the noise level by 100% has been developed by a young scientist from the Far Eastern Federal University (FEFU) along with others. The new foam material is more efficient compared to standard analogs, minimizing the level of noise transmission by 20-22 dB.” by AZoNano
A Rainbow of Colors from Two IR Beams
16 Jul | Optics and Photonics NewsFull Text External Link Indicator
"Researchers at Sandia National Laboratories, USA, and Friedrich Schiller University Jena, Germany, have demonstrated an optical frequency “metamixer” that can convert two input laser pulses into output light waves in eleven separate colors, from the UV to the near-IR (Nat. Commun., doi: 10.1038/s41467-018-04944-9). The business end of the device is a gallium arsenide metasurface, carefully designed to press into service seven separate nonlinear processes, ranging from second-harmonic generation to six-wave mixing, at the same time." by Stewart Wills
A Step Toward Quantum Repeaters
16 Jul | Optics and Photonics NewsFull Text External Link Indicator
"A key enabler of future quantum communications networks would be some sort of quantum repeater, a device that can briefly store and re-transmit a quantum state to keep it alive along lengthy expanses of optical fiber. But voicing the need for quantum repeaters has proved considerably easier than finding a physical system that can do the job." by Stewart Wills
A Step Toward Broadband Spectral Cloaking
16 Jul | Optics and Photonics NewsFull Text External Link Indicator
"Despite many advances over the past decade, realizing the dream of a true “invisibility cloak” keeps hitting a roadblock: broadband illumination. Researchers at a Canadian laboratory have proposed a new concept that reversibly transforms the energy spectrum of the broadband illumination to conceal an object from detection (Optica, doi: 10.1364/OPTICA.5.000779)." by Patricia Daukantas
Carbon-nanotube optics poised to provide path to optical quantum cryptography and computing
13 Jul | LaserFocusWorldFull Text External Link Indicator
"Researchers at Los Alamos National Laboratory (LANL; Los Alamos, NM) and partners in France and Germany are exploring the enhanced potential of carbon nanotubes as single-photon emitters for quantum information processing, and have analyzed progress in the field.1" by John Wallace
High-Resolution Microscopy Confirms Nanoscale Magnetic Properties
06 Jul | AZO MaterialsFull Text External Link Indicator
“A research team from the Lawrence Berkeley National Laboratory (Berkeley Lab) have confirmed the presence of chirality in nanometer-thick samples of multilayer materials with a chaotic structure. The information could be used for the transmission and storage of data.” by AZoM
Plasmonic antennas create femtosecond pulses in the terahertz gap
03 Jul | LaserFocusWorldFull Text External Link Indicator
"A team headed by Technical University of Munich (TUM; Munich, Germany) physicists Alexander Holleitner and Reinhard Kienberger has succeeded for the first time in generating ultrashort electrical pulses on a chip using metal antennas only a few nanometers in size, then running the signals a few millimeters above the surface and reading them again in a controlled manner. The technology enables the development of new, powerful terahertz components and is detailed in Nature Communications." by Gail Overton
A Nemesis for Night-Vision Cameras
02 Jul | Optics and Photonics NewsFull Text External Link Indicator
"In recent years, research in metamaterials and other technologies has spurred progress in so-called invisibility cloaks and adaptive coloration for camouflage. But those technologies have tended to focus on the visible and UV bands, and on hiding electromagnetic energy reflected from surfaces. Concealing infrared (IR) radiation spontaneously emitted by warm bodies—the kind picked up, for example, by night-vision cameras—offers distinct and, in some ways, equally tough challenges." by Stewart Wills
Perovskite photovoltaic technology is scalable, but questions remain about how best to make the devices
27 Jun | LaserFocusWorldFull Text External Link Indicator
"As perovskite solar cells set efficiency records and the nascent technology becomes more stable, another major challenge remains: the issue of scalability, according to researchers at the Department of Energy's National Renewable Energy Laboratory (NREL; Golden, CO)." by John Wallace
A Quantum Simulator for Molecular Motion
15 Jun | Optics and Photonics NewsFull Text External Link Indicator
“Modeling how molecules vibrate requires massive computational power. Now, an international team led by researchers at the University of Bristol, U.K., has demonstrated a quantum approach that uses a photonic chip to simulate molecular dynamics and provide frame-by-frame virtual movies of the atomic motions (Nature, doi: 10.1038/s41586-018-0152-9). The development could, the researchers suggest, spark new, more efficient molecular modeling methods helpful in the creation of new pharmaceutical chemicals and other substances.” by Alison Taylor

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