METHOD OF PRODUCING A LITHIUM-DEPLETED PATTERNED SURFACE ON A LITHIUM NIOBATE CRYSTAL

A lithium-depleted surface on a lithium niobate crystal is produced by bombarding the surface with ions, exposing the surface to an atmosphere containing water vapor, repeatedly washing the surface after decoration of the surface occurs and heating the crystal to about 320 DEG C. Depletion of lithiu...

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Bibliographic Details
Main Author PRIMAK; WILLIAM L
Format Patent
LanguageEnglish
Published 18.02.1975
Subjects
AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE
APPARATUS THEREFOR
CHEMISTRY
CRYSTAL GROWTH
METALLURGY
PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE
REFINING BY ZONE-MELTING OF MATERIAL
SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE
SINGLE-CRYSTAL-GROWTH
UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Summary:A lithium-depleted surface on a lithium niobate crystal is produced by bombarding the surface with ions, exposing the surface to an atmosphere containing water vapor, repeatedly washing the surface after decoration of the surface occurs and heating the crystal to about 320 DEG C. Depletion of lithium in a surface layer may be accomplished in a pattern. The crystal is useful in optical second harmonic generation.
Bibliography:Application Number: US19730398266