Twisted light waves sent across Vienna
A group of researchers from Austria have sent twisted beams of light across the rooftops of Vienna.
A group of researchers from Austria have sent twisted beams of light across the rooftops of Vienna.
Quantum Physics
Nov 11, 2014
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(Phys.org) —Scientists have used selective breeding to create purple wings on the normally brown-winged butterfly Bicyclus anynana. Antonia Monteiro and her colleagues selected butterflies with wing scales that reflected ...
(Phys.org) —Streaking across the sky at more than 50 kilometers per second at atmospheric heights of more than a 90 kilometers high, researchers using the first station of University of New Mexico's Long Wavelength Array ...
Astronomy
Jul 8, 2014
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Flexible, layered materials textured with nanoscale wrinkles could provide a new way of controlling the wavelengths and distribution of waves, whether of sound or light. The new method, developed by researchers at MIT, could ...
Condensed Matter
Jan 23, 2014
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A new approach to harvesting solar energy, developed by MIT researchers, could improve efficiency by using sunlight to heat a high-temperature material whose infrared radiation would then be collected by a conventional photovoltaic ...
Nanophysics
Jan 19, 2014
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Applications in imaging and sensing typically involve the emission of light at a different wavelength than the excitation, or "secondary light emission." The interpretation of resonant secondary light emission in terms of ...
Nanophysics
Jan 13, 2014
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Researchers have created tiny holograms using a "metasurface" capable of the ultra-efficient control of light, representing a potential new technology for advanced sensors, high-resolution displays and information processing. ...
Optics & Photonics
Nov 15, 2013
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Researchers from the FOM Institute AMOLF and the University of Pennsylvania have fabricated a material which gives visible light a nearly infinite wavelength. The new metamaterial is made by stacking silver and silicon nitride ...
Optics & Photonics
Oct 13, 2013
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(Phys.org) —Scientists at SLAC have found a new method to create coherent beams of twisted light – light that spirals around a central axis as it travels. It has the potential to generate twisted light in shorter pulses, ...
General Physics
Sep 19, 2013
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A team of researchers led by San Francisco State University's Weining Man is the first to build and demonstrate the ability of two-dimensional disordered photonic band gap material, designed to be a platform to control light ...
Optics & Photonics
Sep 16, 2013
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