Work

Investigation of smooth wave fronts using SLM-based phase retrieval and a phase diffuser

Year: 2012

Type: article

Abstract: A phase retrieval technique using a spatial light modulator (SLM) and a phase diffuser for a fast reconstruction of smooth wave fronts is demonstrated experimentally. Diffuse illumination of a smooth test object with the aid of a phase diffuser (maximum phase shift, Δø = 0.85 π ) results in a significant diversity in the intensity measurements which, in turn, is beneficial for a non-stagnating iterative phase reconstruction. The use of the SLM enables accurate and fast speckle intensity recording and active correction of misalignments in the setup. The effectiveness of the technique is demonstrated in the optical testing of lenses.

Source: Journal of the European Optical Society Rapid Publications

DOI: 10.2971/jeos.2012.12046

Authors: M. Agour, P. F. Almoro, C. Falldorf

Institutions: South Valley University, Bremen Institute for Applied Beam Technology, Aswan University, University of the Philippines Diliman

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: gold

Estimated APC paid: $1,921

Funders: Deutsche Forschungsgemeinschaft, University of the Philippines, National Research Council of the Philippines