A5100327006- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Semiconductor Quantum Structures and Devices
- Quantum Information and Cryptography
- Mechanical and Optical Resonators
- Photonic Crystals and Applications
- Plasmonic and Surface Plasmon Research
- Semiconductor Lasers and Optical Devices
- Metamaterials and Metasurfaces Applications
- Neural Networks and Reservoir Computing
- Orbital Angular Momentum in Optics
- Optical Network Technologies
- Advanced Antenna and Metasurface Technologies
- Strong Light-Matter Interactions
- 2D Materials and Applications
- Perovskite Materials and Applications
- Photorefractive and Nonlinear Optics
- Geological and Geochemical Analysis
- Silicon Nanostructures and Photoluminescence
- Near-Field Optical Microscopy
- Quantum Dots Synthesis And Properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanowire Synthesis and Applications
- Advanced Measurement and Detection Methods
- Solid State Laser Technologies
Sun Yat-sen University
2013-2025
Nagoya City University
2024
China Three Gorges University
2024
Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area
2024
University of Electronic Science and Technology of China
2021-2024
Shaanxi Normal University
2024
Anhui University of Science and Technology
2024
Shanghai University of Engineering Science
2012-2023
Hainan University
2023
Jilin University
2017-2022
Sharp electromagnetic resonances play an essential role in physics general and optics particular. The last decades have witnessed the successful developments of high-quality (Q) microcavities operating below light line, which however is fundamentally challenging to access from free space. Alternatively, metasurface-based bound states continuum (BICs) offer a complementary solution creating high-Q devices above yet experimentally demonstrated Q factors under normal excitations are still...
Photonic integration is an enabling technology for photonic quantum science, offering greater scalability, stability, and functionality than traditional bulk optics. Here, we describe a scalable, heterogeneous III-V/silicon platform to produce Si$_3$N$_4$ circuits incorporating GaAs-based nanophotonic devices containing self-assembled InAs/GaAs dots. We demonstrate pure singlephoton emission from individual dots in GaAs waveguides cavities - where strong control of spontaneous rate observed...
Atomically thin layered two-dimensional (2D) materials have provided a rich library for both fundamental research and device applications. Bandgap engineering controlled material response can be achieved from artificial heterostructures. Recently, excitonic lasers been reported using transition metal dichalcogenides; however, the emission is still intrinsic energy bandgap of monolayers. Here, we report room temperature interlayer exciton laser with MoS2/WSe2 The onset lasing was identified...
Two-dimensional (2D) layered materials such as GaSe recently have emerged novel nonlinear optical with exceptional properties. Although exhibiting large susceptibilities, the responses of 2D are generally limited by short interaction lengths light, thus further enhancement via resonant photonic nanostructures is highly desired for building high-efficiency devices. Here, we demonstrate a giant second-harmonic generation (SHG) coupling flakes to silicon metasurfaces supporting quasi-bound...
Bound states in the continuum (BICs) with infinite quality factor (Q-factor) and significant field enhancement pave way for realizing highly sensitive optical sensors enhanced light-matter interactions on nanoscale. However, current sensing methods are difficult to discriminate between isotropic anisotropic media from resonance spectral lines, resulting still being limited media. In this work, we demonstrate that BICs can be realized by modulating period of structural units convert QBICs...
Dielectric metasurfaces require high refractive index contrast materials for optimum performance. This requirement imposes a severe restraint; either devices have been demonstrated at wavelengths of 700 nm and above using high-index semiconductors such as silicon, or they use lower dielectric TiO2 Si3N4 operate in the visible wavelength regime. Here, we show that silicon can be exploited short 532 by demonstrating crystalline metasurface with transmission efficiency 71% this diffraction 95%...
As one of the most important semiconductors, silicon has been used to fabricate electronic devices, waveguides, detectors, solar cells, etc. However, indirect bandgap and low quantum efficiency (10-7) hinder use for making good emitters. For integrated photonic circuits, silicon-based emitters with sizes in range 100-300 nm are highly desirable. Here, we show electric magnetic resonances nanoparticles enhance demonstrate white-light emission from feature ~200 nm. The dipole employed...
Many photonic quantum information processing applications would benefit from a high brightness, fiber-coupled source of triggered single photons.Here, we present photonic-crystal waveguide (PCWG) singlephoton relying on evanescent coupling the light field tapered outcoupler to an optical fiber.A two-step approach is taken where performance recorded first independent device containing on-chip reflector.Reflection measurements establish that chip-to-fiber efficiency exceeds 80%.The detailed...
Single self-assembled InAs/GaAs quantum dots are a promising solid-state technology, with which vacuum Rabi splitting, single-photon-level nonlinearities, and bright, pure, indistinguishable single-photon generation having been demonstrated. For such achievements, nanofabrication is used to create structures in the dot preferentially interacts strongly-confined optical modes. An open question extent may also have an adverse influence, through creation of traps surface states that could...
High-index dielectric metasurfaces can support sharp optical resonances enabled by the physics of bound states in continuum (BICs) often manifested experiments as quasi-BIC resonances. They provide a way to enhance light-matter interaction at subwavelength scale bringing novel opportunities for nonlinear nanophotonics. Strong narrow-band field enhancement leads an extreme sensitivity change refractive index that may limit functionalities pump intensities beyond perturbative regime. Here we...
Abstract Integrated photonics provides unprecedented opportunities to pursue advanced nonlinear light sources with low-power consumptions and small footprints in a scalable manner, such as microcombs, chip-scale optical parametric oscillators integrated quantum sources. Among variety of processes, high-efficiency second harmonic generation (SHG) on-chip is particularly appealing yet challenging. In this work, we present efficient SHG highly engineerable semi-nonlinear waveguides consisting...
The pursuit of compact lasers with low thresholds has imposed strict requirements on tight light confinements minimized radiation losses. Bound states in the continuum (BICs) have been recently demonstrated as an effective mechanism to trap light. However, most reported BIC are still bulky due absence in-plane confinement. Here, we combine BICs and photonic bandgaps realize three-dimensional confinements, referred miniaturized (mini-BICs). We demonstrate highly active mini-BIC resonators a...
A single quantum dot (QD) strongly coupled with a plasmonic nanoparticle yields promising qubit for scalable solid-state information processing at room temperature. However, realizing such strong coupling remains challenging due to the difficulty of spatial overlap QD excitons electric fields (EFs). Here, by using transmission electron microscope we demonstrate first time that this can be realized integrating deterministic Au nanorod. When wedge nanogap cavity consisting them and substrate...
The emerging hybrid integrated quantum photonics combines the advantages of different functional components into a single chip to meet stringent requirements for information processing. Despite tremendous progress in integrations III-V emitters with silicon-based photonic circuits and superconducting single-photon detectors, on-chip optical excitations via miniaturized lasers towards sources (SPSs) low power consumptions, small device footprints, excellent coherence properties is highly...
Deterministic techniques enabling the implementation and engineering of bright coherent solid-state quantum light sources are key for reliable realization a next generation devices. Such technology, at best, should allow one to significantly scale up number implemented devices within given processing time. In this work, we discuss possible technology platform such scaling procedure, relying on application nanoscale dot imaging pillar microcavity architecture, which promises combine very high...
Single self-assembled InAs/GaAs quantum dots are promising bright sources of indistinguishable photons for information science.However, their distribution in emission wavelength, due to inhomogeneous broadening inherent growth, has limited the ability create multiple identical sources.Quantum frequency conversion can overcome this issue, particularly if implemented using scalable chip-integrated technologies.Here, we report first demonstration our knowledge a dot single-photon source on...
Magnesium-ion batteries (MIBs) have emerged as an attractive candidate for high-performance energy storage devices because of the low-cost and dendrite-free Mg metal anodes. However, passivation layers formed on anodes result in sluggish kinetics Mg2+ ion diffusion. Herein, we report insertion materials based arsenene alternative to metal. Our first-principles calculations reveal following findings: (1) can be adsorbed monolayer (bilayer) arsenene/graphene heterostructure with adsorption...