Figure 1
Ultra-precisely processd plane-parallel BNA crystals for Maker fringe measurments. (a) As-grown bulk BNA single crystal grown from solution. To make two plane-parallel BNA slab samples, certain region (surrounded by red dot-line) was roughly cutout from the bulk crystal using wire-saw firstly. Then it was devided into two pieces (BNA-1 and BNA-2) further as shown in the picture. (b) Photograph of processed (100)-BNA slab made from the BNA-1. In this case, both sides of (100)-plane of the BNA-1 sample were processed. (c) Example of measured surface profile of ceratin region of surface of the (100)-BNA slab.
