Title :
Positioning sensing with a Shack-Hartmann wavefront sensor
Author :
Ares, J. ; Arines, J. ; Bara, Samir
Author_Institution :
Area de Opt., Santiago de Compostela Univ., Spain
Abstract :
Summary form only. The Shack-Hartmann wavefront sensor is becoming nowadays a popular optical laboratory tool. Its inherent mechanical properties and conceptual simplicity and the possibility of working even with non monochromatic light sources, are its main advantages in the field of wavefront sensors. In this work we introduce the use of a Shack-Hartmann (SH) sensor as a positioning device. As the lateral shearing interferometer the Shack-Hartmann sensor can achieve a multiple range superresolution compared to the Rayleigh depth of focus. It belongs to a class of optical devices which estimate the shape of an incoming wavefront from a set of measurements of its local slopes.
Keywords :
light interferometry; optical focusing; position control; position measurement; wavefront sensors; Rayleigh depth of focus; Shack-Hartmann wavefront sensor; incoming wavefront; inherent mechanical properties; lateral shearing interferometer; local slope measurement; multiple range superresolution; non monochromatic light sources; optical laboratory tool; positioning device; positioning sensing; wavefront sensors; Adaptive optics; Laboratories; Light sources; Mechanical factors; Mechanical sensors; Optical devices; Optical interferometry; Optical sensors; Shape measurement; Shearing;
Conference_Titel :
Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on
Conference_Location :
Nice
Print_ISBN :
0-7803-6319-1
DOI :
10.1109/CLEOE.2000.910146
