Light: Science & Applications (LSA) publishes high quality optics and photonics research from around the world. The Journal covers fundamental research as well as the important issues in engineering and applied sciences that are related to optics and photonics.
Sticky tape & phosphorus the key to ultrathin solar cells
Scientists studying thin layers of phosphorus have found surprising properties that could open the door to ultrathin and ultralight solar cells and LEDs.
Microsecond Raman imaging might probe cells, organs for disease
A vibrational spectroscopic imaging technology that can take images of living cells could represent an advanced medical diagnostic tool for the early detection of cancer and other diseases.
Getting two for one: 'Bonus' electrons in germanium nanocrystals can lead to better solar cells
Researchers from FOM, the University of Amsterdam, the Delft University of Technology and the University of the Algarve have discovered that when light hits germanium nanocrystals, the crystals produce 'bonus electrons'. ...
Pyramid scheme for brighter organic LEDs
The most common kind of light bulb in the United States—the incandescent—is only about 5 percent efficient. The phosphorescent organic light-emitting diode, on the other hand, makes light out of 100 percent of the electricity ...
XMM-Newton reveals cosmic collision in the Bullet Group
(Phys.org) —Despite the large distances between them, galaxies rarely exist in isolation. They are mostly found in large assemblies known as groups and clusters. Groups are the smallest gatherings, containing 50 or so galaxies ...
A complete medical check-up on a chip
(Phys.org) —About the size of a stapler, this new handheld device developed at EFPL is able to test a large number of proteins in our body all at once-a subtle combination of optical science and engineering.
Quantum dots provide complete control of photons
By emitting photons from a quantum dot at the top of a micropyramid, researchers at Linköping University are creating a polarized light source for such things as energy-saving computer screens and wiretap-proof communications.
Twisting the light away using ultrasmall holes
A new study shows that light transmitted through apertures smaller than the wavelength of light go through a radical change, splitting into two symmetrical counter-rotating polarisations.
A micro-optical method for thwarting counterfeiting
In order to thwart forgeries, EPFL researchers propose a new miniaturized authentication system. By combining both, moire patterns and microlithography techniques, it can be easily recognized by the naked eye and impossible ...