OPTICAL-PROPERTIES OF CUBIC BORON-NITRIDE
OPTICAL-PROPERTIES OF CUBIC BORON-NITRIDE
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DOI：
10.1103/physrevb.52.8854
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发表时间：
1995-09-15
影响因子：
3.7
通讯作者：
SEMENOVA, YY
中科院分区：
文献类型：
--
作者：
EREMETS, MI;GAUTHIER, M;SEMENOVA, YY
研究了立方氮化硼在400~5万cm(-1)光谱范围内的光学性质，测量了拉曼散射光谱、吸收光谱和反射光谱。详细研究了单声子和多声子吸收的区域，确定了声子的能量。通过对片状样品干涉光谱的测量，得到了400-28000 cm(-1)范围内的折射率色散。用一个包含单声子和Sellmeier电子振子的模型来拟合折射率的色散。测得其静态介电常数为6.80，高频介电常数为4.46。用声子振荡器的参数模拟了传输和反射中的干涉谱。描述了制备尺寸为150×150微米量级、厚度可达0.2微米的独立样品的技术以及测量其厚度的方法。
Optical properties of cubic boron nitride were studied in the spectral range from 400 to 50 000 cm(-1) Raman-scattering, absorption, and reflection spectra were measured. The regions of the one-phonon and multiphonon absorption were studied in detail and the energies of the phonons were determined. The dispersion of the refractive index in the range 400-28 000 cm(-1) was obtained from measurements of interference spectra on plateletlike samples. A model including one-phonon and Sellmeier electron oscillators was used to fit the dispersion of the refractive index. Both the static and high-frequency dielectric constants epsilon(0) and epsilon(infinity), were obtained and found to be 6.80 and 4.46, respectively. The parameters of the phonon oscillators were used for simulation of the interference spectra in transmission and reflection. Techniques for preparing free-standing samples of dimensions of the order of 150X150 mu m and of thickness down to 0.2 mu m are described as well as methods to measure their thickness.