光谱学与光谱分析 |
|
|
|
|
|
The Auto-Focusing Remote Laser-Induced Breakdown Spectroscopy System |
HAN Zhen-yu1, PAN Cong-yuan1, AN Ning1, DU Xue-wei1, YU Yun-si1, DU Liang-liang2, WANG Sheng-bo3, WANG Qiu-ping1* |
1. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China 2. Department of Precision Machinery & Precision Instrumentation, University of Science and Technology of China, Hefei 230027, China 3. Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026, China |
|
|
Abstract The present paper presents an auto-focus laser-induced breakdown spectroscopy (LIBS) remote measuring system. This system contains a Schwarzschild telescope, which consists of a convex mirror and a concave mirror. The two spherical mirrors are coaxially placed. The convex mirror is mounted on a motorized linear translation stage. With this motorized linear translation stage, the convex mirror can move along the optical axis to change the spacing between the convex mirror and the concave mirror. Therefore the focal length can be adjusted to focus the laser on samples at different distances and collect the plasma spectra. The advantages of the telescope system include, firstly, the light path of laser focusing and spectra signal collection is the same, which make it easier for mounting and collimation; secondly, the light path of the telescope uses total reflection type, which is fit for the detection in ultra-violate region; finally, the telescope consists of only two spherical mirrors which are relatively easier to manufacture. Within the translation range of the motorized linear translation stage, the focal length of the telescope in this paper can be adjusted from 1.5 to 3.6 m. The diameter of the focusing spot varies from 0.5 to 1.0 mm. Utilizing this telescope system, LIBS experiments were conducted using copper sample. And the characteristic lines of Cu element (Cu Ⅰ 223.01 nm, Cu Ⅰ 224.43 nm) obtained are used for the auto focusing. By investigating the relation of the area of spectral lines covered and the spacing between the mirrors, the optimal laser focusing location was obtained .The LIBS experiment results show that the system functions well, fulfilling the demand of remote ablation of sample and LIBS spectral measuring, and the telescope is able to auto-focus the laser on samples at different position to perform remote LIBS experiment.
|
Received: 2014-01-07
Accepted: 2014-03-25
|
|
Corresponding Authors:
WANG Qiu-ping
E-mail: qiuping@ustc.edu.cn
|
|
[1] Bol’shakov A A, Yoo J H, Liu C Y, et al. Applied Optics, 2010, 49(13): C132. [2] Pandhija S, Rai N K, Rai A K, et al. Applied Physics B-Lasers and Optics, 2010, 98(1): 231. [3] Dyar M D, Tucker J M, Humphries S, et al. Spectrochimica Acta Part B Atomic Spectroscopy, 2011, 66(1): 39. [4] Gruber J, Heitz J, Arnold N, et al. Applied Spectroscopy, 2004, 58(4): 457. [5] Khater M A. Spectrochimica Acta Part B Atomic Spectroscopy, 2013, 81: 1. [6] Kumar R, Rai A K, Alamelu D, et al. Environmentral Monitoring and Assessment, 2013, 185(1): 171. [7] Moros J, Lorenzo J A, Lucena P, et al. Analytical Chemistry, 2010, 82(4): 1389. [8] Handke J U R, Duschek F, Gruenewald K, et al. Standoff Detection Applying Laser-Induced Breakdown Spectroscopy at the DLR Laser Test Range, 2011. 80180T. [9] Wiens R C, Maurice S, Barraclough B, et al. Space Science Reviews, 2012, 170(1-4): 167. [10] Gruber J, Heitz J, Strasser H, et al. Spectrochimica Acta Part B Atomic Spectroscopoy, 2001, 56(6): 685. [11] Artioukov I A, Krymski K M. Optical Engineering, 2000, 39(8): 2163. [12] Horikawa Y, Mochimaru S, Iketaki Y, et al. Proc. SPIE, 1992, 1720: 217. [13] http://www.duma.co.il/beamon.html. [14] www.nist.gov/pml/data/asd. cfm. |
[1] |
LIU Jia1, 2, GUO Fei-fei2, YU Lei2, CUI Fei-peng2, ZHAO Ying2, HAN Bing2, SHEN Xue-jing1, 2, WANG Hai-zhou1, 2*. Quantitative Characterization of Components in Neodymium Iron Boron Permanent Magnets by Laser Induced Breakdown Spectroscopy (LIBS)[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 141-147. |
[2] |
YANG Wen-feng1, LIN De-hui1, CAO Yu2, QIAN Zi-ran1, LI Shao-long1, ZHU De-hua2, LI Guo1, ZHANG Sai1. Study on LIBS Online Monitoring of Aircraft Skin Laser Layered Paint Removal Based on PCA-SVM[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3891-3898. |
[3] |
SUN Cheng-yu1, JIAO Long1*, YAN Na-ying1, YAN Chun-hua1, QU Le2, ZHANG Sheng-rui3, MA Ling1. Identification of Salvia Miltiorrhiza From Different Origins by Laser
Induced Breakdown Spectroscopy Combined with Artificial Neural
Network[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3098-3104. |
[4] |
LIU Shu1, JIN Yue1, 2, SU Piao1, 2, MIN Hong1, AN Ya-rui2, WU Xiao-hong1*. Determination of Calcium, Magnesium, Aluminium and Silicon Content in Iron Ore Using Laser-Induced Breakdown Spectroscopy Assisted by Variable Importance-Back Propagation Artificial Neural Networks[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3132-3142. |
[5] |
LI Chang-ming1, CHEN An-min2*, GAO Xun3*, JIN Ming-xing2. Spatially Resolved Laser-Induced Plasma Spectroscopy Under Different Sample Temperatures[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2032-2036. |
[6] |
ZHAO Yang1, ZHANG Lei2, 3*, CHENG Nian-kai4, YIN Wang-bao2, 3*, HOU Jia-jia5, BAI Cheng-hua1. Research on Space-Time Evolutionary Mechanisms of Species Distribution in Laser Induced Binary Plasma[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2067-2073. |
[7] |
WANG Bin1, 2, ZHENG Shao-feng2, GAN Jiu-lin1, LIU Shu3, LI Wei-cai2, YANG Zhong-min1, SONG Wu-yuan4*. Plastic Reference Material (PRM) Combined With Partial Least Square (PLS) in Laser-Induced Breakdown Spectroscopy (LIBS) in the Field of Quantitative Elemental Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2124-2131. |
[8] |
HU Meng-ying1, 2, ZHANG Peng-peng1, 2, LIU Bin1, 2, DU Xue-miao1, 2, ZHANG Ling-huo1, 2, XU Jin-li1, 2*, BAI Jin-feng1, 2. Determination of Si, Al, Fe, K in Soil by High Pressure Pelletised Sample and Laser-Induced Breakdown Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2174-2180. |
[9] |
LIU Gang1, LÜ Jia-ming1, NIU Wen-xing1, LI Qi-feng2, ZHANG Ying-hu2, YANG Yun-peng2, MA Xiang-yun2*. Detection of Sulfur Content in Vessel Fuel Based on Hyperspectral
Imaging Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(06): 1697-1702. |
[10] |
WU Shu-jia1, 2, YAO Ming-yin2, 3, ZENG Jian-hui2, HE Liang2, FU Gang-rong2, ZENG Yu-qi2, XUE Long2, 3, LIU Mu-hua2, 3, LI Jing2, 3*. Laser-Induced Breakdown Spectroscopy Detection of Cu Element in Pig Fodder by Combining Cavity-Confinement[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(06): 1770-1775. |
[11] |
YUAN Shu, WU Ding*, WU Hua-ce, LIU Jia-min, LÜ Yan, HAI Ran, LI Cong, FENG Chun-lei, DING Hong-bin. Study on the Temporal and Spatial Evolution of Optical Emission From the Laser Induced Multi-Component Plasma of Tungsten Carbide Copper Alloy in Vacuum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1394-1400. |
[12] |
WANG Qiu, LI Bin, HAN Zhao-yang, ZHAN Chao-hui, LIAO Jun, LIU Yan-de*. Research on Anthracnose Grade of Camellia Oleifera Based on the Combined LIBS and Fourier Transform NIR Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1450-1458. |
[13] |
CHAI Shu1, PENG Hai-meng1, WU Wen-dong1, 2*. Acoustic-Based Spectral Correction Method for Laser-Induced Breakdown Spectroscopy in High Temperature Environment[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1401-1407. |
[14] |
NING Qian-qian, YANG Jia-hao, LIU Xiao-lin, HE Yu-han, HUANGFU Zhi-chao, YU Wen-jing, WANG Zhao-hui*. Design and Study of Time-Resolved Femtosecond Laser-Induced
Breakdown Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1083-1087. |
[15] |
SUN Wei-min1, CHEN Xu-dong1, YAN Qi1, 2*, GENG Tao1, YAN Yun-xiang1, 3, WANG Sheng-jia1, WANG An-zhi1, WANG Jia-bin1, JIN Xi-ren1, JIANG Hang1, WANG Xiu1, ZHAO Chuang1, ZHONG Yue4, LIANG Yu4, SONG Zhi-ming4, WANG Peng-fei1. Fiber Integral Field Unit System for Measurement of Solar Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1168-1174. |
|
|
|
|