Phase change materials: the 'silicon' for analog photonic computing?

Carlos Ríos; Yifei Zhang; Qingyang Du; Cosmin-Constantin Popescu; Mikhail Shalaginov; Paul Miller; Christopher Roberts; Myungkoo Kang; Kathleen Richardson; Tian Gu; Steven A. Vitale; Juejun Hu

doi:10.1117/12.2613410

2 March 2022 Phase change materials: the 'silicon' for analog photonic computing?

Carlos Ríos, Yifei Zhang, Qingyang Du, Cosmin-Constantin Popescu, Mikhail Shalaginov, Paul Miller, Christopher Roberts, Myungkoo Kang, Kathleen Richardson, Tian Gu, Steven A. Vitale, Juejun Hu

Author Affiliations +

Proceedings Volume 12019, AI and Optical Data Sciences III; 1201909 (2022) https://doi.org/10.1117/12.2613410
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Chalcogenide phase change materials (PCMs) are a class of alloys exhibiting gigantic optical property contrast upon structural transition from an amorphous to a crystalline state. The structural transition is also nonvolatile and does not require constant power supply to maintain its optical state. These unique behaviors qualify PCMs as a novel functional material enabling various on-chip and free-space re-programmable optical computing network architectures. Here we present monolithic integration of PCMs with integrated photonics and metasurface optics leveraging standard silicon foundry facilities, and the demonstration of electrically programmable photonic devices for on-chip optical routing, memory, and computing functions

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Citation Download Citation

Carlos Ríos, Yifei Zhang, Qingyang Du, Cosmin-Constantin Popescu, Mikhail Shalaginov, Paul Miller, Christopher Roberts, Myungkoo Kang, Kathleen Richardson, Tian Gu, Steven A. Vitale, and Juejun Hu "Phase change materials: the 'silicon' for analog photonic computing?", Proc. SPIE 12019, AI and Optical Data Sciences III, 1201909 (2 March 2022); https://doi.org/10.1117/12.2613410

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