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24 October 2017 The effects of pulsed laser parameters on the photoacoustic detection of glucose aqueous solution
Zhong Ren, Guodong Liu, Zhen Huang, Lvming Zeng
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Proceedings Volume 10457, AOPC 2017: Laser Components, Systems, and Applications; 1045702 (2017) https://doi.org/10.1117/12.2281313
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
In this study, the photoacoustic detection system was established based on the Q switched Nd: YAG 532nm pumped optical parametric oscillator pulsed laser and the ultrasonic detector. Based on the established photoacoustic detection system, the effects of pulsed laser on the photoacoustic detection of glucose aqueous solutions were experimentally studied. The photoacoustic peak-to-peak values of glucose and pure water were obtained at different output energy of pulsed laser and at the wavelengths from 1300nm to 2200nm. Experimental results show that the photoacoustic peak-to-peak values of glucose linearly increase with the increasing of the output energy of pulsed laser. The photoacoustic peak-to-peak values were compensated because the output energy of pulsed laser exponentially decreased with the increasing of the wavelengths of pulsed laser. The characteristic wavelengths of glucose were determined according to the difference spectral between the compensated photoacoustic peak-to-peak values of glucose aqueous solution and pure water.
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Zhong Ren, Guodong Liu, Zhen Huang, and Lvming Zeng "The effects of pulsed laser parameters on the photoacoustic detection of glucose aqueous solution", Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 1045702 (24 October 2017); https://doi.org/10.1117/12.2281313
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KEYWORDS
Glucose
Photoacoustic spectroscopy
Pulsed laser operation
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