RED DIAMOND AND PINK DIAMOND

摘要

PURPOSE: To provide a red diamond and a pink diamond which have heretofore been not obtained in a conventional method. ;CONSTITUTION: The red diamond is 0.1cm^-1 to 0.2cm^-1 in absorption coefficient in 500nm 1b type nitrogen, 0.05cm^-1 to 1cm^-1 in absorption coefficient in 570nm absorption peak of N-V center and 0.2cm^-1 in absorption coefficient in visible region of GRI center, H₂ center, H₃ center and H₄ center. The pink diamond is 0.1cm^-1 in absorption coefficient in 500nm of 1b type nitrogen and 0.005cm^-1 to 0.3cm^-1 in absorption coefficient in 570nm of N-V center.;COPYRIGHT: (C)1994,JPO&Japio