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题名:
Calibration optimization of laser-induced deflection signal for measuring absorptance of laser components
作者: Zhang, Xiaorong1,2; Li, Bincheng1
刊名: Applied Optics
出版日期: 2015
卷号: 54, 期号:8, 页码:1861-1869
学科分类: Calibration - Coatings - Finite element method - Irradiation - Laser beams - Probes - Surface resistance
DOI: 10.1364/AO.54.00186
通讯作者: Li, Bincheng
文章类型: 期刊论文
中文摘要: Different configurations of the laser-induced deflection (LID) technique have been developed recently to measure the absolute bulk and coating absorption of laser components directly. In order to obtain the absolute absorptance value of the surface or coating of a laser component, a reference sample with the same geometry and material as the test sample and with resist heating mounted on the surface of the reference sample was employed to calibrate LID signals. Due to the difference in the excitation approaches in measuring LID signals of the test and reference samples (laser beam irradiation versus surface resist heating), this calibration procedure may bring significant errors in the determination of the absorptance of the test sample. In this paper, theoretical models describing the temperature rise distributions within a test sample excited with flat-top beam irradiation and within a reference sample excited with surface resist heating are developed. Based on these temperature models and the finite-element analysis method, the LID signals used to determine the absorptance of the surface or coating of a laser component and the corresponding calibration error are analyzed. The computation results show that the calibration error depends largely on the probe beam position for normal or transverse LID signals and may be minimized by optimizing the probe beam geometry. © 2015 Optical Society of America.
英文摘要: Different configurations of the laser-induced deflection (LID) technique have been developed recently to measure the absolute bulk and coating absorption of laser components directly. In order to obtain the absolute absorptance value of the surface or coating of a laser component, a reference sample with the same geometry and material as the test sample and with resist heating mounted on the surface of the reference sample was employed to calibrate LID signals. Due to the difference in the excitation approaches in measuring LID signals of the test and reference samples (laser beam irradiation versus surface resist heating), this calibration procedure may bring significant errors in the determination of the absorptance of the test sample. In this paper, theoretical models describing the temperature rise distributions within a test sample excited with flat-top beam irradiation and within a reference sample excited with surface resist heating are developed. Based on these temperature models and the finite-element analysis method, the LID signals used to determine the absorptance of the surface or coating of a laser component and the corresponding calibration error are analyzed. The computation results show that the calibration error depends largely on the probe beam position for normal or transverse LID signals and may be minimized by optimizing the probe beam geometry. © 2015 Optical Society of America.
收录类别: SCI ; Ei
语种: 英语
WOS记录号: WOS:000350658900006
ISSN号: 1559-128X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/4172
Appears in Collections:光电工程总体研究室(一室)_期刊论文

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作者单位: 1. Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Institute of Optics and Electronics, P.O. Box 350, Shuangliu, Chengdu, China
2. University of Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Zhang, Xiaorong,Li, Bincheng. Calibration optimization of laser-induced deflection signal for measuring absorptance of laser components[J]. Applied Optics,2015,54(8):1861-1869.
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