CONTACTED CRYSTAL SURFACE PROTECTOR AND METHOD

摘要

Disclosed is a method of protecting optically polished surfaces of a hygroscopic nonlinear optical crystal (100) comprising the steps of optically bonding an inert material (120, 130) to each optically polished surface of the nonlinear crystal (100) and thereby protecting the optically polished surfaces for contact by water vapor. A harmonic generator made by this method is also disclosed.