Repozytorium
Wyszukaj
Kolekcje
Inne
Towards facile fabrication of photonics components from inorganic and hybrid sol-gel films. Preparation and optical properties characterization
Autorzy
Rok wydania
2022
Czasopismo
Numer woluminu
48
Strony
29676-29685
DOI
10.1016/j.ceramint.2022.06.225
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
New trends towards development of integrated optics and miniaturization of photonic devices require fabrication of miniaturized photonic components. Fabrication of waveguiding films with designed optical properties is a fundamental process for production of planar integrated devices.
We report here preparation of thin layers based on TiO2 precursor (TET – titanium(IV) ethoxide) and SiO2 precursors, namely inorganic (TEOS – tetraethyl orthosilicate) or organically modified (GLYMO − 3-glycidoxypropyltrimethoxysilane) as candidates for potential application in the planar integrated circuits.
The thin layers were deposited on soda-lime glass substrates using the sol-gel method and dip-coating technique and processed at relatively low temperature (up to 300 °C). Several parameters e.g. a) the type of SiO2 precursor, b) the presence of complexing agent for TET and c) heat treatment temperature were tested for their influence on thickness and refractive index of the obtained films.
Furthermore, a few series of sol-gel films activated with luminescent dye (Rhodamine B) was fabricated. The influence of the above-listed parameters on luminescent properties of the films was characterized because of lack of systematic study in the literature in this aspect. Moreover, a spectrum of the light at the output of a chosen luminescent dye-doped waveguiding film excited by laser source was investigated.
In addition, the subject of our investigations were films prepared at 200 °C with various amounts of TET and organically modified SiO2 precursor in concentration range not presented before. Their optical properties such as homogeneity and values of optical band gap of TiO2 clusters were explored. For selected samples the waveguide properties including the optical losses were evaluated. For the first time, hybrid films with presented composition and refractive index in range of 1.59–1.71 were used for patterning by nanoimprint technique allowing for reproduction of periodic structures, which may serve for example as grating couplers or DFB (distributed feedback) resonators.
Słowa kluczowe
Sol-gel method, Silica-titania films, Organically modified GLYMO precursor, Optical properties, Waveguides
Adres publiczny
http://dx.doi.org/10.1016/j.ceramint.2022.06.225
Strona internetowa wydawcy
Podobne publikacje
Optical properties of Pr3+ doped silica gel glasses obtained by sol-gel method.
Stręk Wiesław, Legendziewicz Janina, Łukowiak E., Maruszewski K., Sokolnicki Jerzy, Boiko A. A., Borzechowska Małgorzata
Photo- and cathodoluminescence properties of Lu2O3:Tb3+ nanocrystallites embedded in TiO2 films on silicon and quartz substrates.
Nyk Marcin, Hreniak Dariusz, Stręk Wiesław, Misiewicz Jan, Zych Eugeniusz
Optical thin films fabrication techniques—towards a low-cost solution for the integrated photonic platform: a review of the current status.
Butt Muhammad A., Tyszkiewicz Cuma, Karasiński Paweł, Zięba Magdalena, Kaźmierczak Andrzej, Zdończyk Maria, Duda Łukasz, Guzik Małgorzata, Olszewski Jacek, Martynkien Tadeusz, Bachmatiuk Alicja, Piramidowicz Ryszard