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Wavefront sensing using diffractive elements

Abstract: In this Letter, we introduce a wavefront slope sensor based on a diffractive element. The diffractive element wavefront sensor (DEWS) produces four double overlapping copies of the incoming wavefront acting like a combination of shearing and pyramidal sensors. The DEWS allows a simple and fast slope estimate. The wavefront sampling can be as high as the number of pixel assigned to cover a wavefront copy, and it can be modified with only binning the CCD pixels. The theory for designing the sensor, its application to extract local slope information, and a simple noise analysis are presented. An application example for atmosphere aberrated wavefronts is demonstrated.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Cagigal M.P., Valle P.J.,

 Fuente: Optics Letters Vol. 37, Issue 18, pp. 3813-3815 (2012)

Editorial: Optical Society of America

 Año de publicación: 2012

Nº de páginas: 3

Tipo de publicación: Artículo de Revista

 DOI: 10.1364/OL.37.003813

ISSN: 0146-9592,1539-4794,1071-2763

 Proyecto español: AYA2010-19506

Url de la publicación: https://doi.org/10.1364/OL.37.003813