Abstract
The measurement of the centroid of small-scale laser focal spot is one of the most promising technologies for small-scale laser focal spot precise positioning. A method of two-dimensional scanning with CCD has been conducted to precisely measure the centroid of the small-scale laser focal spot (diameter in microns) by obtaining the change curve for gray value. The theoretical analysis is consistent with the experimental results.
Original language | English |
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Pages (from-to) | 58-62 |
Number of pages | 5 |
Journal | Optics and Laser Technology |
Volume | 66 |
DOIs | |
State | Published - Mar 2015 |
Externally published | Yes |
Bibliographical note
Funding Information:This work is supported by the National Natural Science Foundation of China (Grant no. 61008004 ), RFDP 20102302120034 , and the Fundamental Research Funds for the Central Universities (Grant no. HIT. KLOF. 2010035 ).
Publisher Copyright:
© 2014 Elsevier Ltd.
Keywords
- Centroid position measurement
- Charge coupled device (CCD)
- Small-scale laser focal spot