INFLUENCE OF THE DEFECT STRUCTURE ON THE REFRACTIVE-INDEXES OF UNDOPED AND MG-DOPED LITHIUM-NIOBATE

Autor(en): SCHLARB, U
BETZLER, K
Stichwörter: COMPUTER-SIMULATION; CZOCHRALSKI METHOD; DEPENDENCE; INDEXES; LINBO3 CRYSTALS; Materials Science; Materials Science, Multidisciplinary; OPTICAL-DAMAGE RESISTANCE; PHASE-MATCHING TEMPERATURE; Physics; Physics, Applied; Physics, Condensed Matter; SINGLE-CRYSTAL GROWTH; TRANSPORT; WAVELENGTH
Erscheinungsdatum: 1994
Herausgeber: AMER PHYSICAL SOC
Journal: PHYSICAL REVIEW B
Volumen: 50
Ausgabe: 2
Startseite: 751
Seitenende: 757
Zusammenfassung: 
We measured the refractive indices of undoped and Mg-doped lithium niobate by an interferometric technique in a wavelength range from 400 to 1200 nm. The composition of the undoped samples varied between 47 and 50 mol% Li2O in the crystal whereas the Mg-doped samples were grown from congruent melt with up to 9 mol% Mg. Our results can be excellently described by a generalized Sellmeier equation which takes into account the defect structure of Li-deficient and Mg-doped lithium niobate. Calculations of the phase-matching conditions of several nonlinear effects in Mg-doped lithium niobate reveal good correspondence with the respective experimental results in a temperature range from -50 to 250-degrees-C.
ISSN: 24699950
DOI: 10.1103/PhysRevB.50.751

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