Ultrabroadband gradient-pitch Bragg-Berry mirrors
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | RAFAYELYAN, Mushegh | |
| hal.structure.identifier | Centre d'élaboration de matériaux et d'études structurales [CEMES] | |
| dc.contributor.author | AGEZ, Gonzague | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | BRASSELET, Etienne | |
| dc.date.created | 2017-09-11 | |
| dc.date.issued | 2017 | |
| dc.identifier.issn | 1050-2947 | |
| dc.description.abstractEn | The realization of a geometric phase optical device operating over a broad spectral range is usually confronted with intrinsic limitations depending on 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 [M. Rafayelyan and E. Brasselet, Opt. Lett. 41, 3972 (2016).] can be endowed with an ultrabroadband spectral range. Experimental demonstration is made in the case of ultrabroadband optical vortex generation in the visible domain. These results offer a 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. | |
| dc.description.sponsorship | Traitement hyperspectral du moment angulaire orbital de la lumière | |
| dc.description.sponsorship | Université Fédérale de Toulouse | |
| dc.language.iso | en | |
| dc.publisher | American Physical Society | |
| dc.rights.uri | http://creativecommons.org/licenses/by-sa/ | |
| dc.title.en | Ultrabroadband gradient-pitch Bragg-Berry mirrors | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1103/PhysRevA.96.043862 | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Optique [physics.optics] | |
| bordeaux.journal | Physical Review A : Atomic, molecular, and optical physics [1990-2015] | |
| bordeaux.page | 043862 | |
| bordeaux.volume | 96 | |
| bordeaux.issue | 4 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01635088 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01635088v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20A%20:%20Atomic,%20molecular,%20and%20optical%20physics%20%5B1990-2015%5D&rft.date=2017&rft.volume=96&rft.issue=4&rft.spage=043862&rft.epage=043862&rft.eissn=1050-2947&rft.issn=1050-2947&rft.au=RAFAYELYAN,%20Mushegh&AGEZ,%20Gonzague&BRASSELET,%20Etienne&rft.genre=article |
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