3D imaging: Wave front sensing utilizing a birefringent crystal

Autor(en): Buse, K
Luennemann, M
Stichwörter: Physics; Physics, Multidisciplinary
Erscheinungsdatum: 2000
Herausgeber: AMERICAN PHYSICAL SOC
Journal: PHYSICAL REVIEW LETTERS
Volumen: 85
Ausgabe: 16
Startseite: 3385
Seitenende: 3387
Zusammenfassung: 
Utilizing a rotatable thin birefringent crystal and two polarizers, the three-dimensional (3D) wave front of any light wave can be measured conveniently. In first experiments phase-front distortions as small as 15 mu m are detected with a dynamic range of 3 mm and a spatial resolution of 50 mu m. Such a dynamic range and spatial resolution exceed the performance of conventional wave front sensors of, e.g., the Shack-Haltmann type, significantly. Furthermore, the new system is rather insensitive against mechanical instabilities in opposition to interferometric and holographic techniques.
ISSN: 00319007
DOI: 10.1103/PhysRevLett.85.3385

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