Excimer laser and electron beam irradiation effects in iron-doped lithium niobate

• Published in: Journal of materials science 1995-12, Vol.30 (23), p.5944-5952
• Main Authors: SORESCU, M, KNOBBE, E. T, MARTIN, J. J, BARRIE, J. D, BARB, D
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Electrons and positron radiation effects; Exact sciences and technology; Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity); Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Physical radiation effects, radiation damage; Physics; Structure of solids and liquids; crystallography; Ultraviolet, visible, and infrared radiation effects (including laser radiation)
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/BF01151510

Excimer laser (lambda = 308 nm, tau = 10 ns) and electron beam (W = 7 MeV) irradiation effects in 57Fe:LiNbO3 were studied on samples of two crystallographic orientations. Complementary information regarding radiation induced changes to the optical absorbance of the crystal, valence states of Fe, phase composition and morphology of the irradiated regions was obtained by optical absorption measurements, Mossbauer spectroscopy, SEM, EDX spectroscopy, microRaman and Read thin film camera analysis. The relationship between irradiation treatment conditions and induced property modifications in iron-doped lithium niobate is reported within the framework of available defect models. 31 refs.