Infrared Properties of Yttrium Oxide

概要

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By using a large solar furnace, yttrium oxide crystals were made by a fusion process, and their reflectivity was measured in the spectral region 700 to 10 cm^<-1>, Several reststrahlen bands extending from 600 to 240 cm^<-1> were found. From the reflectivity curve, the parameters of seven lattice vibrations were analysed, and the optical constants in a wide spectral region were deduced. The transmittance measurement was made by using crystalline powder embedded in a polyethylene film and several weak bands were found in the far-infrared region. By measuring the transmittance of a thin plate of fused crystal, a number of summation bands were observed in the nearinfrared region. In summarizing the bands, some considerations were given on the vibrational behaviour of yittrium oxide crystals.
社団法人日本物理学会の論文
1971-02-05