| 主頁 > Position-Sensitive Measurements of a Single-Mode Laser Beam Spot Using the Dividing Plate Method |
| Article | |
| Title | Position-Sensitive Measurements of a Single-Mode Laser Beam Spot Using the Dividing Plate Method |
| Author(s) | Budagov, Yu A (Dubna, JINR) ; Glagolev, V V (Dubna, JINR) ; Lyablin, M V (Dubna, JINR) ; Pishchalnikova, E V (Dubna, JINR) ; Kuzkin, A M (Dubna, JINR) ; Trubnikov, G V (Dubna, JINR) ; Di Girolamo, B (CERN) |
| Publication | 2022 |
| Number of pages | 19 |
| In: | Phys. Part. Nucl. Lett. 19 (2022) 765-783 |
| DOI | 10.1134/S1547477122060061 |
| Subject category | Detectors and Experimental Techniques |
| Abstract | New position-sensitive experimental results have been obtained using the Dividing Plates method to detect the displacement of a single-mode laser beam spot of various diameters. Measurements show that with this method it is possible to attain sensitivities down to 0.18 µm$^{–1}$ for a laser beam spot diameter of 8.8 µm displaced over 2.4 µm diameter zone, defined as the area where measurements non-linearities are within 1%. The achievable measurement accuracy is limited by ADC noise and corresponds to ±0.030 nm. Application of the Dividing Plates method for position-sensitive measurements allows to build a compact version of the Precision Laser Inclinometer, the Compact PLI, with reduced overall dimensions of 20 × 20 × 20 cm$^{3}$ and weight of approximatively 10 kg. |
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