THE OPTICAL CONTRAST OF DISLOCATION IN SYNTHETIC QUARTZ WITH BIREFRINGENCE TOPOGRAPHY
人造石英单晶中位错双折射像的反衬

The contrast of birefringence images of dislocation in synthetic quartz crystal have been calculated with anisotropic elasto-optical coeffficients. Using reflection polarizing microscopy to compensate the natural optical activity, along the optical axis, we obtained the images of edge dislocations and compared it with the calculation.