Synergistic effect discovered in layered quantum dot solar cells
Researchers glimpse the inside of a photonic crystal
New way to store light could prove useful for optical communication
New way to funnel light could have infrared applications
No need for color correction: Perfect colors, captured with one ultra-thin lens
Most lenses are, by definition, curved. After all, they are named for their resemblance to lentils, and a glass lens made flat is just a window with no special powers. But a new type of lens created at the ...
Plasmonic device converts light into electricity
New material gives visible light an infinite wavelength
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 ...
Engineers create chameleon-like artificial 'skin' that shifts color on demand
Borrowing a trick from nature, engineers from the University of California at Berkeley have created an incredibly thin, chameleon-like material that can be made to change color—on demand—by simply applying ...
African fruit 'brightest' thing in nature but does not use pigment to create its extraordinary colour
(Phys.org)—The 'brightest' thing in nature, the Pollia condensata fruit, does not get its blue colour from pigment but instead uses structural colour – a method of reflecting light of particular wavelengths- ...
Twisted light waves sent across Vienna
A group of researchers from Austria have sent twisted beams of light across the rooftops of Vienna.
How to tap the sun's energy through heat as well as light
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 ...
Scientists create purple-winged butterflies in six generations
New hologram technology created with tiny nanoantennas
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 ...
New approach using nanoparticle alloys allows heat to be focused or reflected just like electromagnetic waves
An MIT researcher has developed a technique that provides a new way of manipulating heat, allowing it to be controlled much as light waves can be manipulated by lenses and mirrors.