Multilayer YAG/Nd3+:YAG/YAG composite laser ceramics with a high concentration of active additive outclassed the commercial glass and single crystals used in laser technologies by it’s physical and mechanical characteristics. The slope efficiency of the new one is at least twice as the existed materials have got.
The new type of optical ceramics was designed by young scientists’ team of the Far Eastern Federal University (FEFU) under Denis Yu. Kosyanov, Ph.D., senior researcher of the School of Natural Sciences (FEFU). The scientific and technical results of the work presented for publishing in the Ceramics International. Patent application was filed to RosPatent (reg.number 2018119380).
Ceramics created is one of the numbers of other results of the work to design transparent polycrystalline materials with specified properties. The results of previous research have already been published in high-ranking scientific journals Journal of Alloys and Compounds, Journal of the European Ceramic Society, Ceramics International, Optical Materials, etc.
‘The new so-called ‘fine-grained’ ceramics YAG: Nd contains up to 4 at.% active additive of neodymium ions. So far, that is unattainable with modern technologies of laser crystals production. The applying of the innovative method of reaction spark plasma sintering (RSPS) made it possible to carry out the synthesis 10-20 times faster comparing to the known approaches, and to obtain a monophase polycrystal with an average grain size of 500 nm’, senior researcher Denis Kasyanov comments on. ‘An important result of the invention is the simplificatio