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https://scholarbank.nus.edu.sg/handle/10635/186368
DC Field | Value | |
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dc.title | NON-HERMITIAN ELECTRONICS FOR WIRELESS BIOMEDICAL SENSING | |
dc.contributor.author | DONG ZHENYA | |
dc.date.accessioned | 2021-02-14T18:00:31Z | |
dc.date.available | 2021-02-14T18:00:31Z | |
dc.date.issued | 2020-07-27 | |
dc.identifier.citation | DONG ZHENYA (2020-07-27). NON-HERMITIAN ELECTRONICS FOR WIRELESS BIOMEDICAL SENSING. ScholarBank@NUS Repository. | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/186368 | |
dc.description.abstract | Wireless technologies for continuous physiological sensing are essential for health monitoring. In particular, resonant electronic circuits represent an important class of sensors capable of wireless, passive, and battery-free operation. However, their applications are significantly limited by low sensitivity and bulky size in existing interrogation systems. In this thesis, I demonstrate techniques to solve these challenges by engineering the response of non-Hermitian systems that incorporate both gain and loss. Firstly, I show the interrogation sensitivity to a weakly coupled sensor can be greatly enhanced by configuring an exceptional point. Such a system can increase the sensitivity at least 3.2 times over existing methods in experiments. Next, I show the non-Hermitian system can self-track the sensor’s frequency by exploiting the Fano resonance in steady state. It significantly miniaturizes the readout to a scale of 3 cm. These results provide powerful tools for applying wireless sensors to modern medicine. | |
dc.language.iso | en | |
dc.subject | Health monitoring, non-Hermitian physics, wireless interrogation, biomedical sensing, exceptional point, Fano resonance | |
dc.type | Thesis | |
dc.contributor.department | ELECTRICAL & COMPUTER ENGINEERING | |
dc.contributor.supervisor | Ho S Y, John | |
dc.description.degree | Ph.D | |
dc.description.degreeconferred | DOCTOR OF PHILOSOPHY (FOE) | |
dc.identifier.orcid | 0000-0001-6687-3005 | |
Appears in Collections: | Ph.D Theses (Open) |
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File | Description | Size | Format | Access Settings | Version | |
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DongZY.pdf | 9.41 MB | Adobe PDF | OPEN | None | View/Download |
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