Terahertz imaging of pharmaceutical materials with a widely frequency-tunable nonlinear quantum cascade laser

被引：0

作者：

Nakanishi, Atsushi ^{[1
]}

Hayashi, Shohei ^{[1
]}

Fujita, Kazuue ^{[1
]}

机构：

[1] Hamamatsu Photon KK, Cent Res Lab, Hamamatsu, Shizuoka, Japan

来源：

2024 49TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES, IRMMW-THZ 2024 | 2024年

关键词：

Terahertz; spectroscopy; imaging; quantum cascade laser;

D O I：

10.1109/IRMMW-THz60956.2024.10697911

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：

We demonstrate imaging using a widely frequency-tunable terahertz semiconductor source. In this system, frequency of terahertz wave was tuned using an extra cavity diffraction grating. We obtained terahertz images of pharmaceutical materials at different frequencies using the frequency-tunable source. By acquiring images at a frequency corresponding to the absorption peak of the pharmaceutical material, we detected noticeable differences in the concentration of the pharmaceutical material.

引用

页数：2

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