CIOMP OpenIR
Design and experiment of light field shaping system for three-dimensional extended light source used in photoacoustic spectrometer
Y. G. Qiu; Y. Y. Fan; B. X. Yan; Y. W. Wang; Y. H. Wu; Z. Han; Y. Qi and P. Lu
2021
发表期刊Acta Physica Sinica
ISSN1000-3290
卷号70期号:20页码:8
摘要Compared with infrared laser sources, the three-dimensional incoherent extended light source has the advantages of high power, wide spectral range, and low cost. It has extremely wide applications in high-precision and multi-component photoacoustic spectrometers. However, it encounters some problems about poor directivity, low energy density, irregular shape, light field shaping needed in the design of optical system. The photoacoustic spectrometer is required to collect and optimize the radiation of the centimeter-level three-dimensional extended light source to the whole space in a small volume. Through using a series of wavelength and frequency modulation elements, the final cylindrical light field distribution with millimeter-level radius and centimeter-level length is realized. According to the concept of optical expansion and the principle of edge light, this paper breaks through the traditional design mode based on point light source in the process of optical system design and optimization. The concept of extended light source is used throughout the design process. The luminous characteristics of the three-dimensional extended light source are directly acquired by the self-designed measurement method and device which is accurately reflected in the three-dimensional extended light source model in the form of micro-element. The design of the light field shaping system of the three-dimensional extended light source for the photoacoustic spectrometer is realized by the aspheric surface, and the relevant experimental verification is carried out. Taking the Hawkeye IR-Si272 light source for example, the experimental value of the light power at the entrance of the photoacoustic cell and the sidewall noise rate of the photoacoustic spectrometer have a small deviation from their corresponding simulation values. Compared with the original condenser system, the self-designed photoacoustic spectrometer light source system increases the value of the light power at the entrance of the photoacoustic cell from 0.86W to 1.32W, and reduces the value of the sidewall noise rate from 50.3% to 19.7%. The lower limit of detection of the concentration of trace gas in the order of ppm (parts per million) is also achieved.
DOI10.7498/aps.70.20210691
URL查看原文
收录类别SCI
引用统计
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/65140
专题中国科学院长春光学精密机械与物理研究所
推荐引用方式
GB/T 7714
Y. G. Qiu,Y. Y. Fan,B. X. Yan,et al. Design and experiment of light field shaping system for three-dimensional extended light source used in photoacoustic spectrometer[J]. Acta Physica Sinica,2021,70(20):8.
APA Y. G. Qiu.,Y. Y. Fan.,B. X. Yan.,Y. W. Wang.,Y. H. Wu.,...&Y. Qi and P. Lu.(2021).Design and experiment of light field shaping system for three-dimensional extended light source used in photoacoustic spectrometer.Acta Physica Sinica,70(20),8.
MLA Y. G. Qiu,et al."Design and experiment of light field shaping system for three-dimensional extended light source used in photoacoustic spectrometer".Acta Physica Sinica 70.20(2021):8.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Design and experimen(1082KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Y. G. Qiu]的文章
[Y. Y. Fan]的文章
[B. X. Yan]的文章
百度学术
百度学术中相似的文章
[Y. G. Qiu]的文章
[Y. Y. Fan]的文章
[B. X. Yan]的文章
必应学术
必应学术中相似的文章
[Y. G. Qiu]的文章
[Y. Y. Fan]的文章
[B. X. Yan]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Design and experiment of light field shaping s.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。