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- ARIS-RP1: Design and Characterization of Ultra-Large-Scale Intelligent Electromagnetic Surfaces Using Deep Learning
- ARIS-RP2: Reprogrammable Meta-optics for Information Multiplexing
- ARIS-RP3: Making Wireless Communication Environment Smart via Reconfigurable Intelligent Surfaces (RIS): A New Network Optimization Perspective
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- FCT-RP1: Practical Data Storage and Computation in DNA Molecules
- FCT-RP2: Amorphous-Oxide-Semiconductor Thin Film Transistors and DRAM Cross-bar to Enable 3D Monolithically Integrated Architecture for Near/In-memory Computing
- FCT-RP3: Neural-like Computing System based on Superparamagnetic Tunnel Junctions
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- HFM-RP1: Wearable Microneedle Patch for the Minimally Invasive Wireless Continuous Glucose Monitoring
- HFM-RP2: On-body computing for Next-generation Wearable Systems
- HFM-RP3: A Novel Optical Biometer to Monitor Myopia Progression in Children.
- HFM-RP4: Magnetoplethysmograph for Continuous Heart Rate and Blood Pressure Monitoring
- HFM-RP5: Manufacturing of Artificial SKin Integrated Network (SKIN) for Healthcare and Fitness Monitoring
- HFM-RP6: Radio-frequency Textile Sensors for Wearable and Ambient Health Monitoring
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- ADT-RP1: Development of High Precision Additive Manufacturing for Integrated Complex Molding Applications
- ADT-RP2: Low Loss and Tunable Ferroelectrics for Sub-6G Applications
- ADT-RP3: Redox-mediated Flow Battery for Household Energy Storage
- ADT-RP4: Development of Nature-inspired Multiscale Composite Materials for High Strength and Low Loss Applications
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- WDSS-RP1: Enabling Continuous and Realtime Monitoring of Human Vitals through Battery-free Tunnel Diode based Sensors
- WDSS-RP2: Wireless Communication and Radar Sensing Fusion Based Indoor Localization
- WDSS-RP3: Multi-parameter Sensing Platform for Proactive Hypertension Diagnostics Using Artificial Intelligence
- WDSS-RP4: LightChips: Light-Based Integrated Cloud-to-Edge Communications, Sensor Node Wake-Up and Indoor Positioning for mm-Scale Purely-Harvested Systems
ARIS-RP2: Reprogrammable Meta-optics for Information Multiplexing
Principal Investigator: Associate Professor Qiu Chengwei, ECE

Metasurface is a structured interface composed of an array of nanostructures, which is able to arbitrarily manipulate light wave at the subwavelength scale. The development of metasurfaces has inspired a revolution in photonic research with potential applications in compact optical elements, information storage, optical communications and advanced biosensing. However, for most metasurface-based devices, the achievable functionalities are limited, and thus the multiplexed usage of a single metasurface for different functionalities has attracted growing attentions. On the other hand, the functionalities of a metasurface are usually fixed once the device is designed and fabricated. It is a challenging yet important issue to actively modulate the optical properties of a metasurface to realize different functionalities.
In this project, we are dedicated to deal with these two problems and develop reprogrammable metasurfaces for information multiplexing. Perovskite material is adopted to construct the unit nanostructures of metasurfaces, whose optical parameters (dielectric index) can be repeatedly and reversibly changed by laser irradiation through the optomagnetization effects. Meanwhile, instead of a plane wave, the incident light onto a metasurface will have a predefined phase distribution, so that different performances can be demonstrated through the tuning of predefined phase. Besides, the wavelength, polarization and orbital angular momentum of the incident light can function as additional degrees of freedom to enable further information multiplexing. This project is strongly related the second scheme of adaptive and reconfigurable intelligent surfaces.