The discussion centers on determining the axis orientation of periodically poled lithium niobate (LiNbO3) crystals in X-cut without orientation flats. Non-destructive testing (NDT) methods such as X-ray diffraction (XRD) and Electron backscatter diffraction (EBSD) are recommended for this purpose. Additionally, polarized light can be utilized to identify the birefringent properties of the crystals. References to relevant literature on characterizing LiNbO3 crystals and thin films are provided for further study.
PREREQUISITESResearchers, material scientists, and optical engineers involved in the characterization and application of lithium niobate crystals, particularly in photonic and electro-optic devices.
What is the geometry of the crystals? Does the certification (or certificate of compliance) state a crystal orientation with respect to the geometry?abbasdalvi7 said:TL;DR Summary: Need help to determine axis orientation of lithium niobate.
So I have periodically poled lithium niobate crystals in X-cut but they didnt come with orientation flats.
I had wondered about that.DaveE said:It's birefringent, you should be able to tell with polarized light.