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Phase gratings with tunable diffraction efficiency

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 03 Oct 2016 Germany English Publisher:Optica Publishing GroupJournal:Optics Express, volume 24, page 23,765 (eissn: 1094-4087,

Authors: Moritz Stürmer; Matthias C. Wapler; Jana Schmitt; Ulrike Wallrabe; Friedemann Völklein;

doi: 10.1364/oe.24.023765

pmid: 27828213

Phase gratings with tunable diffraction efficiency

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Abstract

We present a new principle for tuning the diffraction efficiency of an optical grating and its implementation in a micro-optical device. The overlap of two phase gratings is used to vary the effective phase shift and hence the diffraction efficiency. We study the working principle using Fourier Optics to simulate the diffraction pattern in the far field and design and realize a device based on integrated piezo actuation. We find good agreement between simulation and experiment and observe a suppression of the first diffraction order intensity by more than 97% and response times of less than 3 ms.

Country

Germany

Related Organizations

University of Freiburg
Germany
RheinMain University of Applied Sciences
Germany

Keywords

542

Impact byBIP!

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