Conical refraction as a tool for polarization metrology
Peinado Capdevila, Alba (Universitat Autònoma de Barcelona. Departament de Física)
Turpin Avilés, Alejandro (Universitat Autònoma de Barcelona. Departament de Física)
Lizana Tutusaus, Ángel (Universitat Autònoma de Barcelona. Departament de Física)
Fernandez Moreno, Estefania (Universitat Autònoma de Barcelona. Departament de Física)
Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Campos Coloma, Juan (Universitat Autònoma de Barcelona. Departament de Física)

Data:	2013
Resum:	A method for polarization metrology based on the conical refraction (CR) phenomenon, occurring in biaxial crystals, is reported. CR transforms an input Gaussian beam into a light ring whose intensity distribution is linked to the incoming polarization. We present the design of a division-of-amplitude complete polarimeter composed of two biaxial crystals, whose measurement principle is based on the CR phenomenon. This design corresponds to a static polarimeter, that is, without mechanical movements or electrical signal addressing. Only one division-of-amplitude device is required, besides the two biaxial crystals, to completely characterize any state of polarization, including partially polarized and unpolarized states. In addition, a mathematical model describing the system is included. Experimental images of the intensity distribution related to different input polarization states are provided. These intensity patterns are compared with simulated values, proving the potential of polarimeters based on biaxial crystals.
Ajuts:	Ministerio de Economía y Competitividad AP2010-2310 Ministerio de Economía y Competitividad BES-2010-031696 Ministerio de Economía y Competitividad FIS2011-23719 Ministerio de Economía y Competitividad FIS2012-39158-C02-01 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-00347
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Òptica
Publicat a:	Optics letters, Vol. 38, No. 20 (15 October 2013) , p. 4100-4103, ISSN 0146-9592

DOI: 10.1364/OL.38.004100

4 p, 361.0 KB

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