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9 March 2024 Scaling up phase change material-based devices: expanding dimensions for adaptive optics
Kiumars Aryana, Hyun Jung Kim, Cosmin-Constantin Popescu, Steven A. Vitale, Hyung Bin Bae, Taewoo Lee, Tian Gu, Juejun Hu
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Proceedings Volume PC12890, Smart Photonic and Optoelectronic Integrated Circuits 2024; PC128900W (2024) https://doi.org/10.1117/12.2692982
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
Phase change materials (PCMs) are commonly used in rewritable optical disks and memory devices. Recently, there have been efforts to incorporate PCMs into optical components and photonic circuits for developing reconfigurable optics, which necessitates the use of larger-scale PCMs. However, enlarging PCM-based devices has proven challenging due to difficulties in the switching mechanism, which demands significant thermal energy density. In this study, through computational models and experimental observations, we explore the effective parameters in phase transformation of Ge2Sb2Te5 and Ge2Sb2Se4Te, with areal length scale on the order of tens of micrometers. Our findings offer insight regarding the development of next-generation adaptive optics such as filters, zoom lenses, and beam steering devices.
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Kiumars Aryana, Hyun Jung Kim, Cosmin-Constantin Popescu, Steven A. Vitale, Hyung Bin Bae, Taewoo Lee, Tian Gu, and Juejun Hu "Scaling up phase change material-based devices: expanding dimensions for adaptive optics", Proc. SPIE PC12890, Smart Photonic and Optoelectronic Integrated Circuits 2024, PC128900W (9 March 2024); https://doi.org/10.1117/12.2692982
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KEYWORDS
Adaptive optics
Circuit switching
Glasses
Instrument modeling
Optical components
Optical discs
Photonic integrated circuits
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