Imaging conoscope for investigation of optical inhomogeneity in large boules of uniaxial crystals

摘要: The name “conoscope” in Greek suggests that this tool should be used for observing interference patterns of birefringent crystals the convergent beam light. As such, conoscope has been frequently laboratories quick and usually qualitative estimation optical inhomogeneity crystals. In paper we have described details computer-controlled imaging quantitative investigation uniaxial To best our knowledge, is first an automated arrangement. Its working based on equations derived a plane–parallel crystal plate cut out obliquely to axis, which next applied two specific orientations practically investigated, i.e. plates perpendicularly parallelly axis. It was found these are more accurate than those published by other investigators. A practical LiNbO3 pulled Czochralski met...