Chinese Optics Letters, 2020, 18 (11): 111402, Published Online: Sep. 21, 2020
Design and analysis of a range-extended acidity detector based on a Nile red laser with tandem cuvette system Download: 532次
Abstract
A range-extended acidity detector based on Nile red was designed and analyzed in this work. In light of the good lasing property and solvatochromism characteristic of Nile red/ethanol solution, we have obtained laser spectra of sulfuric acid in different concentrations doped in this substrate. Moreover, to expand the acidity detection range, we proposed a tandem cuvette system containing rhodamine 6G/ethanol and Nile red/ethanol. Consequently, the detection range could be enlarged from 26 nm to 40 nm, by changing not only the wavelength peak but also by the intensity ratio of dual-wavelength laser output. In addition, by changing the detection and substrate materials, the whole detection range could be expanded, and therefore a wide range of applications in polarity and acidity detection could be implemented via this method.
Yuwei Fang, Junjie Cheng, Shengbo Wang, Chun Gu, Gang Zou, Hai Ming, Lixin Xu. Design and analysis of a range-extended acidity detector based on a Nile red laser with tandem cuvette system[J]. Chinese Optics Letters, 2020, 18(11): 111402.