A5005295436- Thermal Radiation and Cooling Technologies
- Photonic and Optical Devices
- Metamaterials and Metasurfaces Applications
- Transition Metal Oxide Nanomaterials
- Optical Network Technologies
- Phase-change materials and chalcogenides
- Neural Networks and Reservoir Computing
- Urban Heat Island Mitigation
- Photonic Crystals and Applications
- Chalcogenide Semiconductor Thin Films
- Semiconductor Lasers and Optical Devices
- Advanced Antenna and Metasurface Technologies
- Phytoplasmas and Hemiptera pathogens
- Magneto-Optical Properties and Applications
- Solar Thermal and Photovoltaic Systems
National University of Defense Technology
2022-2024
Guangxi University
2022-2024
Hong Kong Polytechnic University
2024
Infrared (IR) stealth with thermal management is highly desirable in military applications and astronomy. However, developing selective IR emitters properties suitable for challenging. In this study, we present the theoretical framework a emitter based on an inverse-designed metasurface management. The comprises gold grating, Ge2Sb2Te5 (GST) dielectric layer, reflective layer. hat-like function, which describes ideal emitter, involved inverse design algorithm. exhibits high performance...
Infrared camouflage is an effective technique to avoid many kinds of target detection by detectors in the infrared band. For a high-temperature environment, thermal management selective emission crucial dissipate heat mid-infrared non-atmospheric window (5-8 μm). However, it still remains challenges for balancing and management. Here, we experimentally demonstrate multilayer film structure (MFS) with Combining ideal spectrum genetic algorithm (GA), inverse-design MFS containing 7 layers five...
In this paper, we design a sandwich multilayer film structure based on phase-change material Ge 2 Sb Te 5 (GST). the visible band, amorphous and crystalline state of GST, light absorption color camouflage can be achieved. The transition between GST by temperature modulation achieve dynamic tuning without affecting absorption. infrared realize function in states, which means that it has higher reflection band. Therefore, simple mature preparation process, effectively compatible with...
Laser-guided detector and infrared detection have attracted increasing attention in a wide range of research fields, including multispectral detection, radiative cooling, thermal management. Previously reported absorbers presented shortcomings lacking either tunability or compatibility. In this study, metamaterial perfect absorber based on Helmholtz resonator fractal structure is proposed, which realizes tunable absorptivity ( α 1.06 μ m >0.99, 10.6 >0.99) guided-laser radar dual...
The nanostructure composed of nanomaterials and subwavelength units offers flexible design freedom outstanding advantages over conventional devices. In this paper, a multifunctional with phase-change material (PCM) is proposed to achieve tunable infrared detection, radiation cooling (IR)-laser compatible camouflage. structure very simple modified from the classic metal-dielectric-metal (MIM) multilayer film structure. We innovatively top layer metals slits, introduced non-volatile PCM...
Ultra-compact multifunctional integrated photonic modules have great practical significance to circuits (PICs). However, the design effect and efficiency of existing mainstream inverse algorithms are incompetent when designing these modules. We analyze their shortcomings in this task, propose a new, our knowledge, algorithm named polygon search (PS) address problems. utilize PS an dual-channel mode-conversion-crossing waveguide module. This module integrates three functions: interconversion...
Based on the novel concept of a fully-digitized module, we employ forward-designed-assisted inverse design method to nonvolatile reconfigurable mode generator and an optical circulator, assisted with phase change material. The can selectively output different modes. fundamental transverse electric (TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> ) or TE xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> modes be generated when is...
<sec>Compared with traditional communication technologies such as electrical interconnection, optical interconnection technology has the advantages of large bandwidth, low energy consumption, anti-interference, etc. Therefore, is becoming an important approach and development trend short distance very data terminal communication. As chip level implemented, silicon on insulator (SOI) based on-chip been widely utilized support a series multiplexing technologies. In recent decades, many...
In this paper, a dynamic color-variable solar absorber is designed based on the phase change material Sb
Multi-mode multiplexing optical interconnection (MMOI) has been widely used as a new technology that can significantly expand communication bandwidth. However, the constant-on state of each channel in existing MMOI systems leads to serious interference for receivers when extracting and processing information, necessitating introducing real-time selective-on function systems. To achieve this goal, combining several practical requirements, we propose selective mode switch based on phase-change...
Infrared camouflage is an effective technique to avoid many kinds of target detection by detectors in the infrared band. For a high-temperature environment, thermal management selective emission crucial dissipate heat non-atmospheric window (5–8 μm). However, it still remains challenges for balancing and management. Here, we theoretically demonstrate inverse design multilayers with Combining ideal spectrum genetic algorithm (GA), multilayer film structure (MFS) containing 9 layers four...
The all-optical half-adder is an important module in integrated photonics, which can be used to realize optical computing and communication. At present, the implemented by traditional methods cannot easily further compressed size, also limits development of its integration. In this paper, four devices, power beam splitter, waveguide cross, XOR gate, AND are designed inverse design method. Their footprint only 2µm×2µm, they have extremely low insertion loss high contrast ratio. These devices...