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Proceedings Paper

Advanced design of UV waveplates based on nano-structured thin films
Author(s): Lina Grinevičiūtė; Rytis Buzelis; Mindaugas Andrulevičius; Algirdas Lazauskas; Algirdas Selskis; Ramutis Drazdys; Tomas Tolenis
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Paper Abstract

Optical elements for polarization control are one of the main parts in advanced laser systems. The state and intensity of polarized light is typically controlled by optical elements, namely waveplates. Polymers, solid or liquid crystals and other materials with anisotropic refractive index can be used for production of waveplates. Unfortunately, most of aforementioned materials are fragile, unstable when environmental conditions changes, difficult to apply in microsystems and has low resistance to laser radiation. Retarders, fabricated by evaporation process, do not consist any of these drawbacks. In order to manufacture such optical components with high quality, characterisation of deposition parameters are essential. A serial bi-deposition method was employed to coat anisotropic layers for polarisation control. Such waveplate can be deposited on micro optics or other optical elements, essentially improving compact optical systems. The range of available materials is limited by absorption losses for waveplates in UV spectral region. Therefore, the investigation was accomplished with four eligible candidates – TiO2, LaF3, Al2O3 and SiO2. Structural (XPS, XRD) and optical (spectrophotometry, ellipsometry) analysis have shown Al2O3 and SiO2 as the most applicable materials for UV spectral region.

Paper Details

Date Published: 30 August 2017
PDF: 7 pages
Proc. SPIE 10356, Nanostructured Thin Films X, 103560Q (30 August 2017); doi: 10.1117/12.2273787
Show Author Affiliations
Lina Grinevičiūtė, Ctr. for Physical Sciences and Technology (Lithuania)
Rytis Buzelis, Ctr. for Physical Sciences and Technology (Lithuania)
Mindaugas Andrulevičius, Kaunas Univ. of Technology (Lithuania)
Algirdas Lazauskas, Kaunas Univ. of Technology (Lithuania)
Algirdas Selskis, Ctr. for Physical Sciences and Technology (Lithuania)
Ramutis Drazdys, Ctr. for Physical Sciences and Technology (Lithuania)
Tomas Tolenis, Ctr. for Physical Sciences and Technology (Lithuania)

Published in SPIE Proceedings Vol. 10356:
Nanostructured Thin Films X
Yi-Jun Jen; Akhlesh Lakhtakia; Tom G. Mackay, Editor(s)

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