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Your search keyword '"Mushegh Rafayelyan"' showing total 2 results
Start Over Author "Mushegh Rafayelyan" Publisher american physical society (aps)
2 results on '"Mushegh Rafayelyan"'

1. Erratum: Spin-to-Orbital Angular Momentum Mapping of Polychromatic Light [Phys. Rev. Lett. 120 , 213903 (2018)]

Author

Mushegh Rafayelyan and Etienne Brasselet

Subjects
Physics, Angular momentum, 020210 optoelectronics & photonics, Quantum mechanics, 0202 electrical engineering, electronic engineering, information engineering, General Physics and Astronomy, 02 engineering and technology, Spin (physics)
Abstract

This corrects the article DOI: 10.1103/PhysRevLett.120.213903.

Published
2018
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2. Ultrabroadband gradient-pitch Bragg-Berry mirrors

Author

Mushegh Rafayelyan, Etienne Brasselet, Gonzague Agez, Laboratoire Ondes et Matière d'Aquitaine (LOMA), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Centre d'élaboration de matériaux et d'études structurales (CEMES), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie de Toulouse (ICT-FR 2599), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), ANR-15-CE30-0018,HYPERPHORB,Traitement hyperspectral du moment angulaire orbital de la lumière(2015), ANR-11-IDEX-0002,UNITI,Université Fédérale de Toulouse(2011), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), and Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Range (particle radiation), business.industry, FOS: Physical sciences, Physics::Optics, Bragg's law, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Optics, Geometric phase, Liquid crystal, 0103 physical sciences, Helix, Orbital angular momentum of light, 010306 general physics, 0210 nano-technology, business, Optical vortex, Realization (systems), Physics - Optics, Optics (physics.optics)
Abstract

The realization of geometric phase optical device operating over a broad spectral range is usually confronted with intrinsic limitations depending of the physical process at play. Here we propose to use chiral nematic liquid crystal slabs with helical ordering that varies in three dimensions. Namely, gradient-pitch cholesterics endowed with in-plane space-variant angular positioning of the supramolecular helix. By doing so, we show that the recently introduced Bragg-Berry mirrors [Opt. Lett. {\bf 41}, 3972-3975 (2016)] can be endowed with ultra-broadband spectral range. Experimental demonstration is made in the case of ultra-broadband optical vortex generation in the visible domain. These results offer practical solution to the polychromatic management of the orbital angular momentum of light combining the circular Bragg reflection of chiral media with the Berry phase., Comment: 11 pages, 13 figures

Published
2017
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