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Supplementary Material for Thermally Tunable Microring Resonators based on Germanium-on-Insulator for Mid-Infrared Spectrometer

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posted on 2024-10-11, 12:02 authored by Jinha Lim, Joonsup Shim, Inki Kim, Seong Kwang Kim, Dae-Myeong Geum, SangHyeon Kim
A. Group Index of Heater-Integrated Ge-OI Figure. S. 1. Effective indices of our Ge-OI waveguide and group index ng (inset; ng as a function of the width of the Ge-OI waveguide, Wring). Figure. S. 2. Analytically extracted refractive indices of the Y2O3 from the FTIR measurement [1]. Figure. S. 3. Calculated group index ng of air-cladding silicon waveguides [2] that has dimension with strong light confinement in the core at 1,550 nm wavelength.

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