Size effect of the Ge2Sb2Te5 cell atop the silicon nitride O-ring resonator on the attenuation coefficient
Year: 2021
Type: article
Abstract: We have studied transmission spectra of a silicon nitride O-ring resonator with a Ge2Sb2Te5 (GST) thin-film cover. We have performed numerical simulations of the transmission, absorption, reflection, and scattering for the GST cells of various thicknesses and lengths and have also measured transmission spectra O-ring resonators for GST cells of various length and phase states. An analysis of the changes in the Q-factors has enabled us to identify the region of the GST cells where light scattering and absorption dominate and find the size dependence of amorphous and crystalline GST attenuation coefficients. The demonstrated results pave the way to high energy-efficient on-chip devices of a small footprint that can be switched either optically or electrically.
Source: APL Materials
DOI: 10.1063/5.0066387
Institutions: National Research University of Electronic Technology, Moscow State Pedagogical University, Russian Quantum Center, National Research University Higher School of Economics, National Research Tomsk State University, NS Kurnakova Institute of General and Inorganic Chemistry, Skolkovo Institute of Science and Technology, Moscow Institute of Physics and Technology, National University of Science and Technology
Language: English
Topic: Photonic and Optical Devices
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,200
Funder: Russian Science Foundation
Award: G487805806
OpenAlex ID: W4200292013