Police report six casualties in UK's NewcastleWorld June 25, 13:14
Putin offers condolences to Pakistan’s president over fire victimsRussian Politics & Diplomacy June 25, 12:39
Fire of fuel tank kills 123 people in Pakistan - TVWorld June 25, 7:58
Muslims worldwide celebrate Eid al-FitrSociety & Culture June 25, 5:18
Mexico knocks out Russia from FIFA Confederations Cup with 2-1 win in KazanSport June 24, 19:59
Putin visits Crimean youth camp ArtekSociety & Culture June 24, 19:42
Conflict around Qatar should be settled by diplomatic means - source at Foreign MinistryRussian Politics & Diplomacy June 24, 16:44
More than 237,000 fans attend Confederations Cup matches already - Deputy PM MutkoSport June 24, 15:03
Sistema's president hopes for dialogue with Rosneft on settlement agreementBusiness & Economy June 24, 14:56
MOSCOW, July 19. /TASS/ Scientists from the Moscow Institute of Physics and Technology (MIPT) have developed a ceramic-based laser, according to the institute’s press service. It will be used as a laser scalpel, and also for cutting and engraving composite materials. The results of the study have been published in Optics Letters.
"Ceramics are a promising medium for lasers. They are cheaper and easier to manufacture than single crystals, extremely important for industrial applications. In addition, the chemical composition of ceramics can be easily varied, which in turn alters the laser’s properties," said Ivan Obronov, one of the co-authors of the study and a MIPT researcher.
Laser beams are formed from the effect of stimulated emission in an active medium, which could be a gas, liquid, crystal, or glass. The Russian physicists have used ceramics as an active medium. The groundbreaking laser converts energy into radiation with an over 50% rate of efficiency, while other types of solid-state lasers have an average efficiency of approximately 20%. The ceramic-based laser generates infra-red radiation with a wavelength of about 2 microns.
It is the wavelength which makes this laser extremely beneficial for medical purposes, as the 2-micron laser allows operations to be conducted at a small depth of around 0.5 mm and does not damage any underlying tissues located below and near the incision. According to developers, surgeons usually apply 2-micron flashlamp-pumped holmium lasers, but these devices are very expensive, relatively bulky, and are not very reliable. "The ceramic-based lasers are cheaper to manufacture, simpler and more reliable, and approximately four times more compact than holmium lasers," - Obronov noted.
Additionally, the new 2-micron ceramic laser can effectively cut polymers in contrast to the widely used 1-micron lasers for which the polymers are almost transparent. Composites are increasingly being used to produce technological equipment such as aircraft. Ceramic lasers could also be a useful tool for production industries," concludes Obronov.