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 |
|---|---|
| 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
Publisher Copyright:© 2014 Elsevier Ltd.
Funding
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 ).
| Funders | Funder number |
|---|---|
| National Natural Science Foundation of China | RFDP 20102302120034, 61008004 |
| Fundamental Research Funds for the Central Universities | 2010035 |
Keywords
- Centroid position measurement
- Charge coupled device (CCD)
- Small-scale laser focal spot