Please use this identifier to cite or link to this item: https://hdl.handle.net/11000/31236
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dc.contributor.authorSánchez López, María del Mar-
dc.contributor.authorAbella, Isaiah-
dc.contributor.authorPuerto García, Daniel-
dc.contributor.authorDavis, Jeffrey A.-
dc.contributor.authorMoreno Soriano, Ignacio-
dc.contributor.otherDepartamentos de la UMH::Física Aplicadaes_ES
dc.date.accessioned2024-02-07T16:23:43Z-
dc.date.available2024-02-07T16:23:43Z-
dc.date.created2018-
dc.identifier.citationOptics and Laser Technology 106 (2018) 168–176es_ES
dc.identifier.issn0030-3992-
dc.identifier.issn1879-2545-
dc.identifier.urihttps://hdl.handle.net/11000/31236-
dc.description.abstractLiquid-crystal polymer q-plates are commercial devices for generating vector beams at the design wavelength where the device exhibits half-wave (HW) retardance. Since they are not voltage addressable, the operational wavelength remains fixed. In this work we perform a broadband spectral characterization of the q-plate retardance as a function of wavelength, /(k), and identify the wavelengths with retardance values relevant for vector beam generation (p, p/2, and 3p/2). The wavelength is then used as a tuning parameter to change the device performance from a HW q-plate to a positive-QW or a negative-QW q-plate. These performances are analyzed using the Jones matrix formalism. We present a simple procedure to derive the polarization distribution of the vector beams expected at these QW wavelengths, as a superposition of the input polarization state and the output state of a HW q-plate. Experimental results using the red and blue lines of an Ar-Kr laser and an IR laser diode of 980 nm confirm the theoretical predictions. We show that for input linearly polarized light of 980 nm and 488 nm the device generates hybrid vector beams (where the ellipticity varies with the azimuthal angle), while for 647 nm pure radial vector beams with constant ellipticity are obtained. These results could extend the use of commercial q-plates for multicolour vector beam applications.es_ES
dc.formatapplication/pdfes_ES
dc.format.extent9es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectq-plateses_ES
dc.subjectvector beamses_ES
dc.subjectspectral retarderses_ES
dc.subjectorbital angular momentumes_ES
dc.subjectspace-variant phase retarderses_ES
dc.subject.classificationFísica Aplicadaes_ES
dc.subject.otherCDU::5 - Ciencias puras y naturales::53 - Físicaes_ES
dc.titleSpectral performance of a zero-order liquid-crystal polymer commercial q-plate for the generation of vector beams at different wavelengthses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.contributor.instituteInstitutos de la UMH::Instituto de Bioingenieríaes_ES
dc.relation.publisherversionhttps://doi.org/10.1016/j.optlastec.2018.04.008es_ES
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