Precise Determination of the Refractive Index of Samples Showing Low Transmission Bands by THz Time-Domain Spectroscopy

被引：36

作者：

Bernier, Maxime ^{[1
]}

Garet, Frederic ^{[1
]}

Coutaz, Jean-Louis ^{[1
]}

机构：

[1] Univ Savoie, CNRS, IMEP LAHC, UMR 5130, F-73376 Le Bourget Du Lac, France

来源：

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2013年 / 3卷 / 03期

关键词：

Material characterization; reflection spectroscopy; transmission spectroscopy; THz time-domain spectroscopy (THz-TDS);

D O I：

10.1109/TTHZ.2013.2247793

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we propose a method to determine the refractive index and the absorption coefficient of samples showing spectral bands of very low transmission. The method, takes advantages of both transmission and reflection terahertz time-domain spectroscopy (THz-TDS) to obtain more precise optical constants than when only reflection measurement is used. It has been then validated using pellets made of maltose, which exhibits resonant lines within the THz spectral range.

引用

页码：295 / 301

页数：7

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