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Prof. Bongsik SONG realize ultra-low loss and high performing silicon carbide nano photoelectric element 2019.08.22
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Professor Bongsik SONG announced that he has developed an ultra-low loss silicon carbide in cooperation with foreign researchers. This result has opened the opportunity for the application of core devices in ICT such as integrated optical circuit, quantum communication light source and minature IoT sensors.

 

This research was published in world renowned journal “Optica” on August 21st.

Thesis: Ultrahigh-Q photonic crystal nanocavities based on 4H silicon carbide

Main author: Prof. Bongsik SONG, Participant Author: Student (PhD) Heungjoon KIM


   



Silicon Carbide has not been widely used as the material for subminiature optical devices despite its excellent physical characteristics. Prof. SONG developed a low-loss silicon carbide thin film thatis appropriate for use in optical devices and produced a nano optical device much more efficient that the existing devices (FWHM 2.4 pm, 1900%/W).

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