Continuous refractive index dispersion measurement based on derivative total reflection method.
作者信息
Deng Zhichao, Wang Jin, Ye Qing, Sun Tengqian, Zhou Wenyuan, Mei Jianchun, Zhang Chunping, Tian Jianguo
机构信息
The Key Laboratory of Weak-Light Nonlinear Photonics, MOE, School of Physics and TEDA Applied Physics School, Nankai University, Tianjin 300071, China.
Advanced Technology Institute, Nankai University, Tianjin 300071, China.
出版信息
Rev Sci Instrum. 2015 Apr;86(4):043101. doi: 10.1063/1.4916256.
Traditionally, continuous refractive index dispersion (CRID) measurement of materials with scattering is hard to realize. In this paper, CRID measurement based on the derivative total reflection method (CRIDM-DTRM) is proposed to measure the CRID of both absorption and scattering materials. It effectively determined the CRID of K9 glass, concentrated milk, and 0.5% methyl red solution in the 400-750 nm range with the spectral resolution of about 0.259 nm. For the first time, CRID of a scattering material is measured. CRIDM-DTRM is a useful technique in the field of RID measurement, especially for biotissues and anomalous dispersion materials.
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