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Cagigal MP, Valle PJ. Wavefront sensing using diffractive elements. Opt Lett. 2012;37(18):3813-5doi: 10.1364/ol.37.003813.
Cagigal, M. P., & Valle, P. J. (2012). Wavefront sensing using diffractive elements. Optics letters, 37(18), 3813-5. https://doi.org/10.1364/ol.37.003813
Cagigal, Manuel P, and Valle, Pedro J. "Wavefront sensing using diffractive elements." Optics letters vol. 37,18 (2012): 3813-5. doi: https://doi.org/10.1364/ol.37.003813
Cagigal MP, Valle PJ. Wavefront sensing using diffractive elements. Opt Lett. 2012 Sep 15;37(18):3813-5. doi: 10.1364/ol.37.003813. PMID: 23041868.
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Opt Lett. 2012 Sep 15;37(18):3813-5. doi: 10.1364/ol.37.003813.

Wavefront sensing using diffractive elements.

Optics letters

Manuel P Cagigal, Pedro J Valle

Affiliations

  1. Departamento de Física Aplicada, Universidad de Cantabria, Santander, Spain.

PMID: 23041868 DOI: 10.1364/ol.37.003813

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.

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