Title :
Fabrication and characterization of 1–4 at.% Nd3+:Y3Al5O12 Laser Ceramics by solid-state reactive sintering
Author :
Baumer, V.N. ; Doroshenko, A.G. ; Kosyanov, D.Yu. ; Parkhomenko, S.V. ; Tolmachev, A.V. ; Voznyy, V.L. ; Yavetskiy, R.P.
Author_Institution :
Inst. for Single Crystals, SSI Inst. for Single Crystals, Kharkov, Ukraine
Abstract :
Peculiarities of phase formation and densification processes during reactive sintering of Nd3+:YAG laser ceramics prepared using particles with different size have been studied. It has been found that utilization of submicron powders can significantly reduce YAG formation temperature from 1700°C for coarse powder to 1200-1500°C for fine powders. Moreover, utilization of different-sized yttria and alumina particles provide a competitive advantage of shrinkage over expansion processes by changing the kinetics of YAG phase formation. Nd3+:YAG (1-4 at.%) laser ceramics with in-line optical transmission of about 81.5 % at λ=1064 nm has been produced by reactive sintering. Finally, we succeed in lasing of Nd3+:YAG (4 at.%) ceramics under pulsed laser diode pumping.
Keywords :
ceramics; densification; garnets; neodymium; sintering; solid lasers; yttrium compounds; Nd:YAG laser ceramics; YAG formation temperature; YAG phase formation kinetics; YAG:Nd; alumina particles; coarse powder; densification process; expansion processes; fine powders; in-line optical transmission; pulsed laser diode pumping; shrinkage; solid-state reactive sintering; submicron powders; temperature 1200 degC to 1700 degC; wavelength 1064 nm; yttria particles; Acceleration; Ear; Heating; Laser sintering; Microwave integrated circuits; Optical pumping; Photonics; densification; laser ceramics; particle size; solid-state reactive sintering; yttrium aluminum garnet;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on
Conference_Location :
Lviv
Print_ISBN :
978-1-4799-5960-0
DOI :
10.1109/OMEE.2014.6912374
