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Journal Article

Unraveling beam self-healing

MPS-Authors
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Aiello,  Andrea
Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201115

Leuchs,  Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201174

Sanchez-Soto,  Luis L.
Quantumness, Tomography, Entanglement, and Codes, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;
Univ Complutense, Fac Fis, Dept Opt, Complutense University of Madrid;

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Fulltext (public)

oe-25-16-19147.pdf
(Any fulltext), 4MB

Supplementary Material (public)

Unraveling beam self-healing.png
(Supplementary material), 38KB

Citation

Aiello, A., Agarwal, G. S., Paur, M., Stoklasa, B., Hradil, Z., Rehacek, J., et al. (2017). Unraveling beam self-healing. OPTICS EXPRESS, 25(16), 19147-19157. doi:10.1364/OE.25.019147.


Cite as: http://hdl.handle.net/21.11116/0000-0000-8336-F
Abstract
We show that, contrary to popular belief, diffraction-free beams not only may reconstruct themselves after hitting an opaque obstacle but also, for example, Gaussian beams. We unravel the mathematics and the physics underlying the self-reconstruction mechanism and we provide for a novel definition for the minimum reconstruction distance beyond geometric optics, which is in principle applicable to any optical beam that admits an angular spectrum representation. Moreover, we propose to quantify the self-reconstruction ability of a beam via a newly established degree of self-healing. This is defined via a comparison between the amplitudes, as opposite to intensities, of the original beam and the obstructed one. Such comparison is experimentally accomplished by tailoring an innovative experimental technique based upon Shack-Hartmann wave front reconstruction. We believe that these results can open new avenues in this field. (C) 2017 Optical Society of America