TY - JOUR N2 - In this topic review the results of the X-band electron paramagnetic resonance (EPR) measurements of Mn, Co, Cr, Fe ions in YAlO3 (YAP) crystals and Fe ions in LiNbO3 (LNO) crystals and of chromium doped Bi12GeO20 (BGO) and Ca4GdO(BO3)3 single crystals, are presented. It is well known that the oxide crystals (for example:YAP, LNO, BGO) are one of the most widely used host materials for different optoelectronic applications. The nature of point defect of impurities and produced in the oxide crystal after irradiation by bismuth ions and after irradiation by the 235U ions with energy 9.47 MeV/u and fluency 5 × 1011 cm−1 is discussed. The latter is important for applications of these oxide crystal as laser materials. L1 - http://journals.pan.pl/Content/115297/PDF/main.pdf L2 - http://journals.pan.pl/Content/115297 PY - 2018 IS - No 2 EP - 91 KW - Electron paramagnetic resonance KW - Oxide crystals KW - Point defects KW - Mn2+ KW - Mn4+ KW - Co2+ KW - Fe3+ KW - Cr3+ KW - Nd3+ and Er3+ ions KW - Optical materials KW - Spin-Hamiltonian KW - Superposition model KW - Spin-lattice relaxation time A1 - Stefaniuk, I. PB - Polish Academy of Sciences (under the auspices of the Committee on Electronics and Telecommunication) and Association of Polish Electrical Engineers in cooperation with Military University of Technology VL - vol. 26 DA - 07.03.2018 T1 - Electron paramagnetic resonance study of impurities and point defects in oxide crystals SP - 81 UR - http://journals.pan.pl/dlibra/publication/edition/115297 T2 - Opto-Electronics Review ER -