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  Unraveling beam self-healing

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.

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 Creators:
Aiello, Andrea1, Author           
Agarwal, Girish S.2, Author
Paur, Martin2, Author
Stoklasa, Bohumil2, Author
Hradil, Zdenek2, Author
Rehacek, Jaroslav2, Author
de la Hoz, Pablo2, Author
Leuchs, Gerd3, Author           
Sanchez-Soto, Luis L.4, 5, Author           
Affiliations:
1Marquardt Division, Max Planck Institute for the Science of Light, Max Planck Society, Staudtstraße 2, 91058 Erlangen, DE, ou_2421700              
2external, ou_persistent22              
3Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364698              
4Quantumness, Tomography, Entanglement, and Codes, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society, Staudtstraße 2, 91058 Erlangen, DE, ou_2364709              
5Univ Complutense, Fac Fis, Dept Opt, Complutense University of Madrid, E-28040 Madrid, Spain, ou_persistent22              

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Free keywords: BESSEL BEAMS; LIGHT-BEAM; RECONSTRUCTION; PHASE; MICROMANIPULATION; DIFFRACTION; OBSTACLES; AMPLITUDE; PROPERTY; OPTICSOptics;
 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

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Language(s): eng - English
 Dates: 2017-08-07
 Publication Status: Issued
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000409326900074
DOI: 10.1364/OE.25.019147
 Degree: -

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Title: Optics Express
  Abbreviation : Opt. Express
Source Genre: Journal
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Publ. Info: Washington, DC : Optical Society of America
Pages: - Volume / Issue: 25 (16) Sequence Number: - Start / End Page: 19147 - 19157 Identifier: ISSN: 1094-4087
CoNE: https://pure.mpg.de/cone/journals/resource/954925609918