| 摘要 |
PROBLEM TO BE SOLVED: To provide a detection method which can quickly detect a CVD synthetic diamond in a large number of diamonds with high detection efficiency and accuracy.SOLUTION: The detection method includes: (1) a step of clearly wiping a diamond to be detected and placing the diamond at a fixing position; (2) a step of irradiating the diamond with light of different wavelengths within a certain wave length range; (3) a step of collecting light of different wavelengths reflected by the diamond to be detected;(4) a step of calculating a reflectance for the diamond to be detected having light of different wavelengths and obtaining a wavelength-reflectivity curve by intensity of the reflected light; (5) a step of detecting whether a peak appears on the wavelength-reflectivity curve, removing the diamond to be detected in which the peak does not appear, and retaining the diamond to be detected in which the peak appears; and (6) a step of detecting the diamond to be detected in which the peak in (5) appears and judging the diamond in which the peak appears in the wavelength range of 227 nm to 233 nm as a CVD synthetic diamond. |
