Unravelling and circumventing failure mechanisms in chalcogenide optical phase change materials
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916400161882112 |
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| author | Popescu, Cosmin Constantin Aryana, Kiumars Mills, Brian Lee, Tae Woo Martin-Monier, Louis Ranno, Luigi Sia, Jia Xu Brian Dao, Khoi Phuong Bae, Hyung-Bin Liberman, Vladimir Vitale, Steven Kang, Myungkoo Richardson, Kathleen A. Ocampo, Carlos A. Ríos Calahan, Dennis Zhang, Yifei Humphreys, William M. Kim, Hyun Jung Gu, Tian Hu, Juejun |
| author_facet | Popescu, Cosmin Constantin Aryana, Kiumars Mills, Brian Lee, Tae Woo Martin-Monier, Louis Ranno, Luigi Sia, Jia Xu Brian Dao, Khoi Phuong Bae, Hyung-Bin Liberman, Vladimir Vitale, Steven Kang, Myungkoo Richardson, Kathleen A. Ocampo, Carlos A. Ríos Calahan, Dennis Zhang, Yifei Humphreys, William M. Kim, Hyun Jung Gu, Tian Hu, Juejun |
| contents | Chalcogenide optical phase change materials (PCMs) have garnered significant interest for their growing applications in programmable photonics, optical analog computing, active metasurfaces, and beyond. Limited endurance or cycling lifetime is however increasingly becoming a bottleneck toward their practical deployment for these applications. To address this issue, we performed a systematic study elucidating the cycling failure mechanisms of Ge$_2$Sb$_2$Se$_4$Te (GSST), a common optical PCM tailored for infrared photonic applications, in an electrothermal switching configuration commensurate with their applications in on-chip photonic devices. We further propose a set of design rules building on insights into the failure mechanisms, and successfully implemented them to boost the endurance of the GSST device to over 67,000 cycles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_12313 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Unravelling and circumventing failure mechanisms in chalcogenide optical phase change materials Popescu, Cosmin Constantin Aryana, Kiumars Mills, Brian Lee, Tae Woo Martin-Monier, Louis Ranno, Luigi Sia, Jia Xu Brian Dao, Khoi Phuong Bae, Hyung-Bin Liberman, Vladimir Vitale, Steven Kang, Myungkoo Richardson, Kathleen A. Ocampo, Carlos A. Ríos Calahan, Dennis Zhang, Yifei Humphreys, William M. Kim, Hyun Jung Gu, Tian Hu, Juejun Optics Materials Science Chalcogenide optical phase change materials (PCMs) have garnered significant interest for their growing applications in programmable photonics, optical analog computing, active metasurfaces, and beyond. Limited endurance or cycling lifetime is however increasingly becoming a bottleneck toward their practical deployment for these applications. To address this issue, we performed a systematic study elucidating the cycling failure mechanisms of Ge$_2$Sb$_2$Se$_4$Te (GSST), a common optical PCM tailored for infrared photonic applications, in an electrothermal switching configuration commensurate with their applications in on-chip photonic devices. We further propose a set of design rules building on insights into the failure mechanisms, and successfully implemented them to boost the endurance of the GSST device to over 67,000 cycles. |
| title | Unravelling and circumventing failure mechanisms in chalcogenide optical phase change materials |
| topic | Optics Materials Science |
| url | https://arxiv.org/abs/2409.12313 |