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题名:
Sensitivity enhancement of surface thermal lens technique with a short-wavelength probe beam: Experiment
作者: Zhang, Xiaorong1,2; Li, Bincheng1
刊名: Review of Scientific Instruments
出版日期: 2015
卷号: 86, 期号:2, 页码:024902
学科分类: Gaussian beams - Probes - Reflective coatings - Signal detection
DOI: 10.1063/1.4907544
文章类型: 期刊论文
中文摘要: Surface thermal lens is a highly sensitive photothermal technique to measure low absorption losses of various solid materials. In such applications, the sensitivity of surface thermal lens is a key parameter for measuring extremely low absorption. In this paper, we experimentally investigated the influence of probe beam wavelength on the sensitivity of surface thermal lens for measuring the low absorptance of optical laser components. Three probe lasers with wavelength 375 nm, 633 nm, and 1570 nm were used, respectively, to detect the surface thermal lens amplitude of a highly reflective coating sample excited by a cw modulated Gaussian beam at 1064 nm. The experimental results showed that the maximum amplitude of surface thermal lens signal obtained at corresponding optimized detection distance was inversely proportional to the wavelength of the probe beam, as predicted by previous theoretical model. The sensitivity of surface thermal lens could, therefore, be improved by detecting surface thermal lens signal with a short-wavelength probe beam. © 2015 AIP Publishing LLC.
英文摘要: Surface thermal lens is a highly sensitive photothermal technique to measure low absorption losses of various solid materials. In such applications, the sensitivity of surface thermal lens is a key parameter for measuring extremely low absorption. In this paper, we experimentally investigated the influence of probe beam wavelength on the sensitivity of surface thermal lens for measuring the low absorptance of optical laser components. Three probe lasers with wavelength 375 nm, 633 nm, and 1570 nm were used, respectively, to detect the surface thermal lens amplitude of a highly reflective coating sample excited by a cw modulated Gaussian beam at 1064 nm. The experimental results showed that the maximum amplitude of surface thermal lens signal obtained at corresponding optimized detection distance was inversely proportional to the wavelength of the probe beam, as predicted by previous theoretical model. The sensitivity of surface thermal lens could, therefore, be improved by detecting surface thermal lens signal with a short-wavelength probe beam. © 2015 AIP Publishing LLC.
收录类别: SCI ; Ei
语种: 英语
WOS记录号: WOS:000350552700056
ISSN号: 0034-6748
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6644
Appears in Collections:薄膜光学技术研究室(十一室)_期刊论文

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作者单位: 1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
2. University of Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Zhang, Xiaorong,Li, Bincheng. Sensitivity enhancement of surface thermal lens technique with a short-wavelength probe beam: Experiment[J]. Review of Scientific Instruments,2015,86(2):024902.
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