Optical properties of Dy3+ doped epoxy novolak resin

Vaclav Prajzler; Vitezslav Jerabek; Ivan Huttel; Oleksei Lyutakov; Jarmila Spirkova; Vladimir Machovic; Jiri Oswald; Jiri Zavadil

doi:10.1117/12.793788

9 September 2008 Optical properties of Dy³⁺ doped epoxy novolak resin

Vaclav Prajzler, Vitezslav Jerabek, Ivan Huttel, Oleksei Lyutakov, Jarmila Spirkova, Vladimir Machovic, Jiri Oswald, Jiri Zavadil

Author Affiliations +

Proceedings Volume 7061, Novel Optical Systems Design and Optimization XI; 706119 (2008) https://doi.org/10.1117/12.793788
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

We report about properties of epoxy novolak resin polymer doped with dysprosium ions. The polymer layers were fabricated by spin-coating onto silicon substrates, or pouring epoxy novolak resin solution into bottomless molds placed on a quartz substrate and leaving them to dry. Rather strong bands around 3366 cm^-1 in the infrared spectra indicated presence of the O-H groups. Absorption measurements were done in the spectral range from 300 nm to 3000 nm and showed six strong bands at 758 nm (⁶F_3/2), 807 nm (⁶F_5/2), 906 nm (⁶F_7/2), 1100 nm (⁶F_9/2), 1280 nm (⁶F_11/2) and 1685 nm (⁶H_11/2) corresponding to Dy³⁺ ions. Optical band gap E_g was determined from the absorption coefficient values using Tauc's procedure, i.e., from the relationship αhv = A(hv - E_g)² and the obtained values varied from 3.489 eV to 3.539 eV depending on the amount of dysprosium ions involved in the samples. Photoluminescence spectra around 1300 nm were investigated by using excitation of He-Ne laser (632.8 nm) and two semiconductor lasers (980 nm and 827 nm).

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Vaclav Prajzler, Vitezslav Jerabek, Ivan Huttel, Oleksei Lyutakov, Jarmila Spirkova, Vladimir Machovic, Jiri Oswald, and Jiri Zavadil "Optical properties of Dy³⁺ doped epoxy novolak resin", Proc. SPIE 7061, Novel Optical Systems Design and Optimization XI, 706119 (9 September 2008); https://doi.org/10.1117/12.793788

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