The international group of researchers from University of Rochestera in New York was able to improve efficiency of ordinary incandescent through sverkhkorotkikh of laser impulses lamps. About it reports Science Now, and work of scientists appeared in a magazine Physical Review Letters.v scopes of research of physics studied affecting of femtosekundnykh (10-15 seconds) of laser impulses metals. Before they already succeeded to prove that similar brings irradiations over to forming
difficult nanostruktur on-the-spot standards. In particular, physicists succeeded to obtain that without depending on a metal after an irradiation the surface of standards became black and well took in thermal energy.Researchers supposed that, if metal
well takes in energy, then, possibly, he must it it is good to radiate. For verification of hypothesis they exposed to rays the tungsten spiral of incandescence of ordinary bulb. After plugging of lamp it turned out in a wall outlet, that a 60-vatnaya lamp lighted brighter 100-vatnoy at a that energy consumption,
that efficiency of bulb grew almost in two times.Besides the increase of efficiency a scientist it was succeeded to obtain some other changes. In past researches through laser impulses they could do the surface of metals not only black, but,
for example, turn blue or red. Appeared, that, applying an alike technique to the spiral of lamp, it is possible to obtain the change of spectrum of light, will say aside more dark blue.Except for it scientists succeeded to obtain that a lamp radiated the polarized light. It was before considered that
the similar is impossible without the use of the special filters which diminish power of lamp notedly.Scientists mark that in spite of high cost of lasers, able to create impulses duration a few femtosekund, industrial production
treated metallic spirals can appear fully advantageous business. For example, presently in the developed countries companies go for introduction of new lamps which more "rationally" outlay electric power. This transition requires creation of new
production capacities, and treatment of incandescent lamps will allow to produce more economical lamps on those powers, passes Lenta.ru.
