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https://hdl.handle.net/11000/5113
Desarrollo de sistemas difractivos avanzados para la generación de vórtices ópticos y haces de polarización estructurada
Título : Desarrollo de sistemas difractivos avanzados para la generación de vórtices ópticos y haces de polarización estructurada |
Autor : Cofré Henríquez, Aarón Moisés |
Tutor: Moreno Soriano, Ignacio Vargas Vázquez, Asticio |
Departamento: Departamentos de la UMH::Ciencia de Materiales, Óptica y Tecnología Electrónica |
Fecha de publicación: 2018-07-10 |
URI : http://hdl.handle.net/11000/5113 |
Resumen :
Esta Tesis Doctoral presenta en la modalidad de compendio de artículos el desarrollo de
diferentes sistemas ópticos para la realización de óptica difractiva avanzada con control del estado
de polarización.
El primer sistema emplea un modulador espacial de luz nemático con giro (TN-SLM),
que es prev... Ver más
This Doctoral Thesis presents, in the form of a compendium of articles, the development
of different optical systems for the realization of advanced diffractive optics with polarization
control.
The first system uses a twisted nematic spatial light modulator (TN-SLM), which is
previously calibrated following a proposal based on the precise determination of its physical
parameters. This calibration allows identifying elliptical polarization states that provide two pure
phase modulation regimes, a binary regime and a continuous regime based on a triplicator phase
profile. The results allowed to generate diffraction gratings, diffractive lenses and optical vortices.
The second optical system is based on two liquid crystal in silicon spatial light modulators
(LCoS-SLM) arranged in a “Z” configuration. This system allows the independent control of
two orthogonal linear polarization components, and it is useful to generate diffractive elements
with spatial variation of state of polarization. The first application of this system is the
development of a complete, punctual and instantaneous polarimeter, based on polarization
diffraction gratings. These polarization diffraction gratings are generated by the combination of
two pure phase gratings implemented in each modulator. Their combination creates different
diffraction orders that act as different polarization analyzers. The second application of the "Z"
system is the generation of vector beams and elements of structured light. Using multifocalization
lenses implemented in the spatial light modulators and an analyzer it is possible to
choose different targeting patterns. In addition, by combining an annular focus with spiral
phases, different vector beams were obtained.
Finally, a third system was created based on a geometric phase lens and q-plates. These
novel optical elements were used to create a longitudinal circular polarization split system, useful
to analyze optical vortices and vector beams.
In summary, these four papers constitute an advance in the field of methods for the
generation or detection of light beams with structured polarization control.
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Palabras clave/Materias: polarización óptica luz Física instrumentos ópticos |
Área de conocimiento : CDU: Ciencias puras y naturales: Física: Óptica |
Tipo de documento : info:eu-repo/semantics/doctoralThesis |
Derechos de acceso: info:eu-repo/semantics/openAccess |
Aparece en las colecciones: Tesis doctorales - Ciencias e Ingenierías
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La licencia se describe como: Atribución-NonComercial-NoDerivada 4.0 Internacional.