The High-Altitude Water Cherenkov (HAWC) Gamma Ray Observatory has begun formal operations at its site in Mexico. HAWC is designed to study the origin of very high-energy cosmic rays and observe the most energetic objects ...
Astronomy
Aug 21, 2013
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Recent advances in nanotechnology are providing new possibilities for medical imaging and sensing. Gold nanostructures, for example, can enhance the fluorescence of marker dyes that are commonly used to detect biomolecules ...
Nanophysics
Sep 25, 2013
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Light consists of a flow of photons. If two waveguides – cables for light – are side by side, they attract or repel each other. The interaction is due to the optical force, but the effect is usually extremely small. Physicists ...
Optics & Photonics
Oct 2, 2017
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NASA's new 'Black Marble' images of the nighttime Earth aren't so black. They reveal that our globe is heavily littered with excessive and wasteful lighting that produces light pollution – a bright glow over our cities ...
Space Exploration
Dec 7, 2012
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Sony today announced two new Cyber-shot cameras (DSC-TX1 and DSC-WX1 models) that provide unprecedented advances in low-light performance with approximately twice the sensitivity of cameras with traditional image sensors.
Consumer & Gadgets
Aug 6, 2009
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Researchers from Technische Universität München have developed a new generation of image sensors that are more sensitive to light than the conventional silicon versions, with the added bonus of being simple and cheap to ...
Engineering
Jan 22, 2013
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In conventional sensing methods, noise is always a problem, especially in systems that are meant to detect changes in their environment that are hardly bigger or even smaller than the noise in the system. Encountering this ...
Optics & Photonics
Feb 14, 2020
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Better known as the light sensor that sets the body's biological clock, melanopsin also plays an important role in vision: Via its messengers-so-called melanopsin-expressing retinal ganglion cells, or mRGCs-it forwards information ...
Cell & Microbiology
Dec 7, 2010
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Dartmouth researchers have developed a molecular switch that changes a liquid crystal's readout color based on a chemical input. This new development may open the way for using liquid crystals in detecting harmful gases, ...
Condensed Matter
Aug 26, 2013
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(Phys.org)—Digital cameras, medical scanners, and other imaging technologies have advanced considerably during the past decade. Continuing this pace of innovation, an Austrian research team has developed an entirely new ...
Optics & Photonics
Feb 20, 2013
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