
Proceedings Paper
Discrimination of the glucose and the white sugar based on the pulsed laser-induced photoacoustic techniqueFormat | Member Price | Non-Member Price |
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Paper Abstract
In this study, to discriminate the glucose and the white sugar gradient in the food, a noninvasive optical detection system
based on pulsed laser-induced photoacoustic technique was developed. Meanwhile, the Nd: YAG 532nm pumped OPO
pulsed laser was used as the excitation light source to generate of the photoacoustic signals of the glucose and white
sugar. The focused ultrasonic transducer with central detection frequency of 1MHz was used to capture the photoacoustic
signals. In experiments, the real-time photoacoustic signals of the glucose and the white sugar aqueous solutions were
gotten and compared with each other. In addition, to discriminate the difference of the characteristic photoacoustic
signals between both of them, the difference spectrum and the first order derivative technique between the peak-to-peak
photoacoustic signals of the water and that of the glucose and white sugar were employed. The difference characteristic
photoacoustic wavelengths between the glucose and the white sugar were found based on the established photoacoustic
detection system. This study provides the potential possibility for the discrimination of the glucose and the white sugar
by using the photoacoustic detection method.
Paper Details
Date Published: 1 August 2017
PDF: 7 pages
Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 103391K (1 August 2017); doi: 10.1117/12.2269390
Published in SPIE Proceedings Vol. 10339:
Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Jianda Shao; Takahisa Jitsuno; Wolfgang Rudolph, Editor(s)
PDF: 7 pages
Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 103391K (1 August 2017); doi: 10.1117/12.2269390
Show Author Affiliations
Guodong Liu, Jiangxi Science and Technology Normal Univ. (China)
Published in SPIE Proceedings Vol. 10339:
Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Jianda Shao; Takahisa Jitsuno; Wolfgang Rudolph, Editor(s)
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