| 摘要 |
<p>An infrared optical part, such as a prism consisting of synthetic diamond and capable of carrying out an ATR spectroscopic analysis of a sample to be measured, which is deposited on an object in a place in bad environment, a structure or clothes, by merely bringing the prism into pressure contact with these objects, and a sample holding slide plate, which consists of synthetic diamond and has a long useful life, for an infrared microscope; and a measuring instrument using this prism. Since a total reflection (ATR) prism (14) of synthetic diamond the crystals of which have a nitrogen content of not more than 3 ppm and a boron content of not more than 3 ppm, optical mirrors (12, 17), lenses (13, 16) or fibers are used, a total reflection (ATR) spectroscopic analysis of a sample is carried out by bringing the prism into direct pressure contact with the sample (15) without using a holder.</p> |
