Doctoral student Bayram Butun from Bilkent University invented a laser using nanotechnology, and made a revolution in electronics.
"We report a compact light source that incorporates a semiconductor light-emitting diode, nanostructured distributed feedback (DFB) Bragg grating and spin-coated thin conjugated polymer film. With this hybrid structure, we transferred electrically generated 390 nm ultraviolet light to an organic polymer via optical pumping and out-couple green luminescence to air through a second-order DFB grating. We demonstrate the feasibility of electrically driven, hybrid, compact light-emitting devices and lasers in the visible range."
This will reduce costs in LED and laser using.
http://www.sabah.com.tr/haber,FAE5CB5548E340788857772BFD21A679.html