High-resolution light spot localization with photodiode arrays
Year: 1984
Authors: Bertani D., Cetica M., Ciliberto S., Francini F.
Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy
Abstract: We describe two analog electronic techniques to determine the position of a light spot on a linear photodiode array by detecting its intensity peak or its centroid. The position was detected with an accuracy of 1 and 3.5 µm by the two methods, respectively, using a 16-µm center-to-center array. As an example, the displacement of a mirror was measured with a sensitivity of 0.05 µm.
Journal/Review: REVIEW OF SCIENTIFIC INSTRUMENTS
Volume: 55 (8) Pages from: 1270 to: 1272
KeyWords: Semiconductor diodes, photodiode; PhotodetectorsDOI: 10.1063/1.1137914Citations: 8data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-27References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here