Fundamental research on fields and waves motivated by practical challenges in biomedical technology. Areas of interest include metasurfaces, propagation in complex media, electromagnetic chirality, spoof plasmonics, and parity-time symmetry, with emphasis on their applications to wireless power transfer, communication, actuation, and sensing.
Selected publications: (Dong et al., 2019; Dong et al., 2017)
References
2019
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Sensitive readout of implantable microsensors using a wireless system locked to an exceptional point
Zhenya Dong, Zhipeng Li, Fengyuan Yang, and 2 more authors
Nature Electronics, Aug 2019
Nature Electronics, doi:10.1038/s41928-019-0284-4
2017
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Enhanced Electromagnetic Energy Harvesting with Subwavelength Chiral Structures
Zhenya Dong, Fengyuan Yang, and John S Ho
Physical Review Applied, Oct 2017
Efficient collection of energy from electromagnetic radiation is important to emerging technologies for wireless power transfer, but is challenging in dynamic environments, because performance generally depends on the light’s polarization direction. The authors show that engineering the chirality of a subwavelength structure can enable uniform collection of energy from all orientations of an incident polarization state. Such structures also enjoy enhanced performance when the chirality of the incident field matches that of the structure. This approach could enable miniaturization and more robust wireless powering of moving devices.