Article (Scientific journals)
Polarization holography for vortex retarders recording: laboratory demonstration
Piron, Pierre; Blain, Pascal; Décultot, Marc et al.
2015In Applied Optics, 54 (15), p. 4765-4770
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Keywords :
holography; polarization; liquid crystal
Abstract :
[en] This paper will present a prototype of the first set of vortex retarders made of liquid crystal polymers recorded by polarization holography. Vortex retarders are birefringent plates characterized by a rotation of their fast axis. Liquid crystals possess birefringent properties and they are locally orientable. Their orientation is defined by the perpendicular to the local orientation of the recording field. Polarization holography is a purely optical recording method. It is based on the superimposition of coherent and differently polarized beams. It is used to shape the electric field pattern to enable the recording of vortex retarders. The paper details the mathematical model of the superimposition process. The recording setup is exposed; it is characterized by a nearly common path interferometer. Two sets of measurements allowing the prediction of the retarder’s features are presented and compared. Finally, the experimentally recorded retarder is shown, its characteristics are investigated and compared to the predicted ones.
Research center :
Hololab
Disciplines :
Physics
Author, co-author :
Piron, Pierre ;  Université de Liège > Département de physique > Optique - Hololab
Blain, Pascal ;  Université de Liège > CSL (Centre Spatial de Liège)
Décultot, Marc ;  Université de Liège > Département de physique > Optique - Hololab
Mawet, Dimitri
Habraken, Serge ;  Université de Liège > Département de physique > Optique - Hololab
Language :
English
Title :
Polarization holography for vortex retarders recording: laboratory demonstration
Publication date :
15 May 2015
Journal title :
Applied Optics
ISSN :
1559-128X
eISSN :
2155-3165
Publisher :
Optical Society of America, Washington, United States - District of Columbia
Volume :
54
Issue :
15
Pages :
4765-4770
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 337569 - VORTEX - Taking extrasolar planet imaging to a new level with vector vortex coronagraphy
Name of the research project :
VORTEX
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
CE - Commission Européenne [BE]
Available on ORBi :
since 29 May 2015

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