3D microoptical elements formed in a photostructurable germanium silicate by direct laser writing |
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| Authors: | M Malinauskas A Žukauskas V Purlys A Gaidukevičiu¯tė Z Balevičius A Piskarskas C Fotakis S Pissadakis D Gray R Gadonas M Vamvakaki M Farsari |
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| Institution: | 1. Department of Quantum Electronics, Physics Faculty, Vilnius University, Saul?tekio ave. 9, LT-10222 Vilnius, Lithuania;2. Institute of Electronic Structure and Laser, Foundation of Research and Technology Hellas, N. Plastira 100, 70013 Heraklion, Greece;3. Institute of Physics, Center for Physical Sciences and Technology, Savanoriu ave. 231, LT-02300 Vilnius, Lithuania;4. Department of Materials Science and Technology, University of Crete, P.O. Box 2208, 710 03 Heraklion, Greece |
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| Abstract: | We present our investigations into the fabrication of three-dimensional microoptical elements by the direct femtosecond laser writing of a germanium–silicon photosensitive hybrid material. Germanium glass composites are very interesting for optical applications as they are photosensitive, and maintain high optical transparency in the visible and near-infrared bands of the spectrum. Here, we have used a germanium containing hybrid material to make nanophotonic structures and microoptical elements such as photonic crystal templates, prisms and spatial polarization plates, both on flat surfaces and fiber tips. Our results show that this germanium silicate composite is an excellent material for microoptics fabrication. |
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