Work

Simultaneous phase and amplitude aberration sensing with a liquid-crystal vector-Zernike phase mask

Year: 2018

Type: article

Abstract: /2 phase on the point spread function core through the achromatic geometric phase acting with the opposite sign on opposite circular polarizations. After splitting circular polarization, the ensuing pupil intensity images are used to reconstruct the phase and the amplitude of the incoming wavefront. We demonstrate reconstruction of the complex wavefront with monochromatic lab measurements and show in simulation the high accuracy and sensitivity over a bandwidth up to 100%.

Source: Optics Letters

DOI: 10.1364/ol.44.000017

Authors: David S. Doelman, Fedde Fagginger Auer, Michael J. Escuti, Frans Snik

Institutions: Leiden University, Leiden Observatory, North Carolina State University

Language: English

Topic: Adaptive optics and wavefront sensing

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: H2020 European Research Council

Award: Forging Advanced Liquid-Crystal Coronagraphs Optimized for Novel Exoplanet Research