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\bibitem{Demirtas_etal2018} {\textquotedblleft}\textit{Low Loss Atomic Layer Deposited Al2O3 Waveguides for Applications in On-Chip Optical Amplifiers}{\textquotedblright}. Demirtas M, Odaci C, Perkgoz NK, Sevik C, Ay F, IEEE journal of selected topics in quantum electronics \textbf{24}, 3100508 (2018).   http://doi.org/10.1109/JSTQE.2018.2825880

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