Spectroscopic and photorefractive properties of molybdenum-doped barium titanate

Abstract

Molybdenum-doped barium titanate crystals have been grown and characterized. Electron paramagnetic resonance spectroscopy has confirmed the presence of Mo5+ centers in reduced crystals that correlate with a strong optical absorption band at ∼600 nm. Self-pumped phase-conjugation and electro-optic beam-coupling measurements indicate that the reduced crystals are photorefractive in the visible, as well as the near-infrared wavelength region.