Human preference for red low-light may have developed long ago, when we experienced "daily rhythm of sunlight".

Ultrafast photomodulation spectroscopy uses UV femtosecond pulses to change refractive index of silicon.

French firm says that it will shortly release results on a four-junction concentrator PV device.

600 kilowatt production facility for heterojunction silicon cells built in Neuchâtel.

Consortium developing flexible OLEDs involves Osram, Audi, Diehl Aerospace, Hella and Novaled.

Eindhoven-led team develop new fiber that allows 21 times more bandwidth than is currently available.

Ben Gurion University and Soreq Nuclear Research Center establishing photonics and electro-optics facility with NIS175m (€37m) funding.

Novel optical effect observed promising new hyper-sensitive devices.

£35 million boost for Northern Ireland facility aided by European regional development funding.

Among nine new key research projects winning total of €16m funding.

Laser processing step means that cells can be produced without need for expensive high-temperature furnace.

SPIE, AIP and OSA make papers published by 2014 physics and chemistry laureates available on digital platforms.