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Topologically Protected All-Optical Memory
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Seou | - |
dc.contributor.author | Kim, Jungmin | - |
dc.contributor.author | Kwak, Jeonghun | - |
dc.contributor.author | Park, Namkyoo | - |
dc.contributor.author | Yu, Sunkyu | - |
dc.date.accessioned | 2024-05-16T01:07:53Z | - |
dc.date.available | 2024-05-16T01:07:53Z | - |
dc.date.created | 2022-08-26 | - |
dc.date.created | 2022-08-26 | - |
dc.date.issued | 2022-10 | - |
dc.identifier.citation | Advanced Electronic Materials, Vol.8 No.10, p. 2200579 | - |
dc.identifier.issn | 2199-160X | - |
dc.identifier.uri | https://hdl.handle.net/10371/202187 | - |
dc.description.abstract | The in-memory processor has played an essential role in overcoming the von Neumann bottleneck, which arises from the partition of memory and a processing unit. Although photonic technologies have recently attracted attention for ultrafast and power-efficient in-memory computing, the realization of an all-optical in-memory processor remains a challenge. This difficulty originates from the contradiction between robustness and sensitivity in wave dynamics, requiring both noise-immune memory states and modulation-sensitive transitions between these states. Here, a building block that provides an all-optical transition between topologically protected memory states is proposed. A nonlinear photonic molecule that satisfies parity-time (PT) symmetry, revealing multiple oscillation quenching states with different degeneracies determined by PT-symmetric phases is investigated. In terms of topology for dynamical systems, these quenching states support topologically protected dynamical trajectories suitable for stable memory states. An all-optical bidirectional transition between these states, which allows incoherent memory switching is demonstrated. The result provides design criteria for all-optical in-memory processors with multilevel operations, enabling the classical-wave counterpart of electronic memristors. | - |
dc.language | 영어 | - |
dc.publisher | Wiley-VCH Verlag | - |
dc.title | Topologically Protected All-Optical Memory | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/aelm.202200579 | - |
dc.citation.journaltitle | Advanced Electronic Materials | - |
dc.identifier.wosid | 000819199800001 | - |
dc.identifier.scopusid | 2-s2.0-85133122316 | - |
dc.citation.number | 10 | - |
dc.citation.startpage | 2200579 | - |
dc.citation.volume | 8 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Kwak, Jeonghun | - |
dc.contributor.affiliatedAuthor | Park, Namkyoo | - |
dc.contributor.affiliatedAuthor | Yu, Sunkyu | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | PARITY-TIME SYMMETRY | - |
dc.subject.keywordPlus | SATURABLE ABSORBER | - |
dc.subject.keywordPlus | PHOTONICS | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordAuthor | all-optical memory | - |
dc.subject.keywordAuthor | dynamical systems | - |
dc.subject.keywordAuthor | parity-time symmetry | - |
dc.subject.keywordAuthor | topological protection | - |
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- College of Engineering
- Department of Electrical and Computer Engineering
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