pp. 413-423
S&M1080 Research Paper of Special Issue https://doi.org/10.18494/SAM.2015.1139 Published: June 8, 2015 Broadband Light Source and Its Application to Near-Infrared Spectroscopy [PDF] Jun Ono, Tatsuro Endo, Kazuya Ohta, Hirotaka Ono, Yukina Maeda, Kousuke Senda, Osanori Koyama and Makoto Yamada (Received January 20, 2015; Accepted March 11, 2015) Keywords: 1.8 µm broadband light source, near-infrared spectroscopy, organic solute concentration, alcohol concentration
A new 1.8 µm broadband light source for measuring concentrations of organic solutes is developed by combining an amplified sponteneous emission (ASE) light source that uses a Tm3+-Tb3+-doped fiber and commercially available light sources. The ASE intensity exceeded −50 dBm/nm for a bandwidth of ~1520 to ~1850 nm. We constructed a near-IR spectroscopy system with the developed broadband light source and confirmed its effectiveness for evaluating concentrations of organic solutes. The system can measure several organic solutes at low volumetric concentrations of around 0.3%. Furthermore, we used the system to evaluate the alcohol concentration of sake. We found that we could accurately determine an ethanol concentration within 1.5% of the accepted value in sake.
Corresponding author: Makoto YamadaCite this article Jun Ono, Tatsuro Endo, Kazuya Ohta, Hirotaka Ono, Yukina Maeda, Kousuke Senda, Osanori Koyama and Makoto Yamada, Broadband Light Source and Its Application to Near-Infrared Spectroscopy, Sens. Mater., Vol. 27, No. 5, 2015, p. 413-423. |