Volatile broadband switchable thermo-optic properties of phase change chalcogenide semiconductors

Kwanghyun Kim; Joshua Perkins; Avik Mandal; Behrad Gholipour

doi:10.1117/12.2677104

4 October 2023 Volatile broadband switchable thermo-optic properties of phase change chalcogenide semiconductors

Kwanghyun Kim, Joshua Perkins, Avik Mandal, Behrad Gholipour

Proceedings Volume PC12647, Active Photonic Platforms (APP) 2023; PC126471U (2023) https://doi.org/10.1117/12.2677104
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Conference Poster

Abstract

Phase-change materials (PCMs), capable of non-volatile electrically or optically induced transitions, are being actively explored as a promising option for use in silicon photonic neuromorphic integrated circuits and compact modulators in telecom networks to overcome the limitations in footprint and power consumption imposed by the utilization of weak and volatile thermo-optic effects in current architectures. We present the first-ever broadband measurement of the thermo-optic effect in a number of widely explored chalcogenide PCMs across visible to telecom frequencies. Our measurements show that beyond their non-volatile phase change properties, PCMs also possess giant switchable broadband thermo-optic coefficients.

Citation Download Citation

Kwanghyun Kim, Joshua Perkins, Avik Mandal, and Behrad Gholipour "Volatile broadband switchable thermo-optic properties of phase change chalcogenide semiconductors", Proc. SPIE PC12647, Active Photonic Platforms (APP) 2023, PC126471U (4 October 2023); https://doi.org/10.1117/12.2677104

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