High-charge and multiple-star vortex coronagraphy from stacked vector vortex phase masks
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | ALEKSANYAN, Artur | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | BRASSELET, Etienne | |
| dc.date.created | 2017-10-12 | |
| dc.date.issued | 2018 | |
| dc.identifier.issn | 0146-9592 | |
| dc.description.abstractEn | Optical vortex phase masks are now installed at many ground-based large telescopes for high-contrast astronomical imaging. To date, such instrumental advances have been restricted to the use of helical phase masks of the lowest even order, while future giant telescopes will require high-order masks. Here we propose a single-stage on-axis scheme to create high-order vortex coronagraphs based on second-order vortex phase masks. By extending our approach to an off-axis design, we also explore the implementation of multiple-star vortex coronagraphy. An experimental laboratory demonstration is reported and supported by numerical simulations. These results offer a practical roadmap to the development of future coronagraphic tools with enhanced performances. | |
| dc.description.sponsorship | Traitement hyperspectral du moment angulaire orbital de la lumière - ANR-15-CE30-0018 | |
| dc.language.iso | en | |
| dc.publisher | Optical Society of America - OSA Publishing | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/ | |
| dc.subject.en | Spatial filtering | |
| dc.subject.en | Optical vortices | |
| dc.subject.en | Astronomical optics | |
| dc.title.en | High-charge and multiple-star vortex coronagraphy from stacked vector vortex phase masks | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1364/OL.43.000383 | |
| dc.subject.hal | Physique [physics]/Physique [physics]/Optique [physics.optics] | |
| bordeaux.journal | Optics Letters | |
| bordeaux.page | 383-386 | |
| bordeaux.volume | 43 | |
| bordeaux.issue | 3 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01721471 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01721471v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Optics%20Letters&rft.date=2018&rft.volume=43&rft.issue=3&rft.spage=383-386&rft.epage=383-386&rft.eissn=0146-9592&rft.issn=0146-9592&rft.au=ALEKSANYAN,%20Artur&BRASSELET,%20Etienne&rft.genre=article |
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