Haoyi Cheng
A5056625085- Metamaterials and Metasurfaces Applications
- Acoustic Wave Phenomena Research
- Underwater Acoustics Research
- Astrophysical Phenomena and Observations
- Animal Vocal Communication and Behavior
- Gamma-ray bursts and supernovae
- Adaptive optics and wavefront sensing
- Particle Detector Development and Performance
- Advanced X-ray and CT Imaging
University of Hong Kong
2023-2024
Hong Kong University of Science and Technology
2023-2024
Passive metasurfaces are known for their fixed and usually single-wave manipulation functionality, which limits potential applications diverse scenarios. To expand the functionality of passive metasurfaces, frequency-multiplexed technology has been proposed to encode multiple operation frequencies in a single metasurface function selection switching. Although this extensively utilized electromagnetic waves, there have few studies on designing acoustic-wave manipulation. This work applies...
Considering the extraordinary wavefront modulation properties, acoustic metasurfaces have been extensively utilized to achieve powerful wave-manipulation functionalities. The next-generation are urgently required encode more information capacity and process an increasing number of signal channels in a compact device, which needs degrees freedom for multifunctional modulation. In this study, subwavelength monolayer transmission–reflection-integrated (TRIMs) systemically designed through...
The Lobster Eye Imager for Astronomy (LEIA), a pathfinder of the Wide-field X-ray Telescope Einstein Probe (EP) mission, was successfully launched onboard SATech-01 satellite Chinese Academy Sciences on 27 July 2022. In this paper, we introduce design and on-ground test results LEIA instrument. Using state-of-the-art Micro-Pore Optics (MPO), wide field-of-view (FoV) 346 square degrees (18.6 * 18.6 degrees) imager is realized. An optical assembly composed 36 MPO chips used to focus incident...
As a novel X-ray focusing technology, lobster eye micro-pore optics (MPO) feature both wide observing field of view and true imaging capability, promising sky monitoring with significantly improved sensitivity spatial resolution in soft X-rays. Since first proposed by Angel (1979), the have been extensively studied, developed trialed over past decades. In this Letter, we report on first-light results from flight experiment Lobster Eye Imager for Astronomy ($LEIA$), pathfinder wide-field...