THE OPTICAL AND EPR SPECTRA OF THE HYDROGEN ANNEALED KTiOPO₄ CRYSTALS

Abstract

In this work, the results of the hydrogen treatment and following that, the annealing in air of flux-grown KTiOPO 4 (KTP) crystals are represented. We have tried to correlate our optical and EPR results. The main conclusion is that the Ti 3+ A, B, C, D centers are not associated with optical absorption in the visible light region.

Site selective substitution Pt for Ti in KTiOPO4:Ga crystals revealed by electron paramagnetic resonance

“…KTP crystals were extensively studied by various methods, 22,23 including Electron Paramagnetic Resonance (EPR) of impurities [24][25][26][27][28][29][30][31] and radiation defects. 32 one Pt 3þ center, Pt(A), and two Pt þ centers, Pt(B) and Pt(C), were described in details.…”

Gallium hole traps in irradiated KTiOPO4:Ga crystals

“…KTP crystals were extensively studied by various methods, 9,[19][20][21] including Electron Paramagnetic Resonance (EPR) of impurities [22][23][24][25][26][27][28][29][30][31] and radiation defects. 32 found that EPR signal depends on kind of irradiation (light, x-and c-rays), as well as on growth technique.…”