A5050752960- Photonic and Optical Devices
- Quantum Information and Cryptography
- Semiconductor Quantum Structures and Devices
- Quantum optics and atomic interactions
- Mechanical and Optical Resonators
- 2D Materials and Applications
- Advanced Fiber Laser Technologies
- MXene and MAX Phase Materials
- Semiconductor Lasers and Optical Devices
- Quantum and electron transport phenomena
- Advanced Semiconductor Detectors and Materials
- Quantum Computing Algorithms and Architecture
- Solid State Laser Technologies
- Neural Networks and Reservoir Computing
- Quantum Mechanics and Applications
- Graphene research and applications
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Laser-Matter Interactions and Applications
- Optical Network Technologies
- Luminescence Properties of Advanced Materials
- Laser Material Processing Techniques
- Plasmonic and Surface Plasmon Research
- Force Microscopy Techniques and Applications
- Atomic and Subatomic Physics Research
University of Electronic Science and Technology of China
2017-2025
Changchun University of Science and Technology
2023-2025
Southwestern Institute of Physics
2020-2024
Southwest University of Science and Technology
2021
Fujitsu (Japan)
2003-2011
Japan Science and Technology Agency
2006
NTT (United States)
2005
University of Tsukuba
1999-2004
An integrated quantum light source is increasingly desirable in large-scale information processing. Despite recent remarkable advances, a new material platform constantly being explored for the fully on-chip integration of generation, active and passive manipulation, detection. Here, first time, we demonstrate gallium nitride (GaN) microring based generation telecom C-band, which has potential toward monolithic source. In our demonstration, GaN free spectral range 330 GHz near-zero anomalous...
In this paper, we demonstrate the generation of high-performance entangled photon-pairs in different degrees freedom from a single piece fiber pigtailed periodically poled LiNbO$_3$ (PPLN) waveguide. We utilize cascaded second-order nonlinear optical processes, i.e. second-harmonic (SHG) and spontaneous parametric down conversion (SPDC), to generate photon-pairs. Previously, performance photon pairs is contaminated by Raman noise photons pigtails. Here integrating PPLN waveguide with...
Quantum teleportation can transfer an unknown quantum state between distant nodes, which holds great promise in enabling large-scale networks. To advance the full potential of teleportation, states must be faithfully transferred at a high rate over long distance. Despite recent impressive advances, high-rate system across metropolitan fiber networks is extremely desired. Here, we demonstrate transfers carried by independent photons 7.1 ± 0.4 Hz 64-km-long channel. An average single-photon...
Abstract Multi‐wavelength quantum light sources are extremely desired in establishing communication links among multiple users for realizing networks. Despite recent impressive advances, developing such a source with high quality remains challenging. Here multi‐wavelength using silicon nitride micro‐ring free spectral range of 200 GHz is demonstrated. The generation eight‐wavelength‐paired photon pairs ensured wavelength 25.6 nm. With device optimization and noise‐rejecting filters, this...
Abstract To advance the full potential of quantum networks one should be able to distribute resources over long distances at appreciable rates. As a consequence, all components in such need have large multimode capacity manipulate photonic states. Towards this end, memory with capacity, especially operating telecom wavelength, remains an important challenge. Here we optimize preparation atomic frequency combs and demonstrate spectro-temporally multiplexed 10-m-long cryogenically cooled...
Telecom-band-integrated quantum memory is an elementary building block for developing networks compatible with fiber communication infrastructures. Toward such a network large capacity, integrated multimode photonic at telecom band has yet been demonstrated. Here, we report fiber-integrated storage of single photon on laser-written chip. The device fiber-pigtailed Er3+:LiNbO3 waveguide and allows up to 330 temporal modes heralded 4-GHz-wide bandwidth 1532 nm 167-fold increasing coincidence...
Recently, two-dimensional (2D) metal halides have triggered an enormous interest for their tunable mechanical, electronic, magnetic, and topological properties, greatly enriching the family of 2D materials. Here, based on first-principles calculations, we report a systematic study group 11 transition-metal halide MX (M = Cu, Ag, Au; X Cl, Br, I) monolayers. Among them, CuBr, CuI, AgBr, AgI monolayers exhibit high thermodynamic, dynamic, mechanic stability. The four stable direct band gap...
The number of semiconducting MXenes with direct band gaps is extremely low; thus, it highly desirable to broaden the MXene family beyond carbides and nitrides expand palette desired chemical physical properties. Here, we theoretically report existence single-layer (SL) dititanium oxide 2H-Ti2O MOene (MXene-like 2D transition oxides), showing an Ising superconducting feature. Moreover, SL halogenated 2H- 1T-Ti2O monolayers display tunable features strong light-harvesting ability. In addition,...
We experimentally demonstrate a real-time quantum random number generator by using room-temperature single-photon emitter from the defect in commercial gallium nitride wafer. Due to brightness of our emitter, raw bit generation rate is about 1.8 MHz, and unbiased 420 kHz after von Neumann's randomness extraction procedure. Our results show that wafer has great potential for development integrated high-speed devices.
Abstract Mode interactions have recently become the focus of intense research in micro/nanoelectromechanical systems (M/NEMS) due to their ability improve device performance and explore frontiers fundamental physics. Understanding controlling coupling between vibrational modes are critical for development advanced M/NEMS devices. This review summarizes recent advances studies multiple resonators, focusing especially on experimental developments practical applications. First, depending...
Wide-temperature-range 10.3 Gbit/s operations of 1.3 µm distributed feedback (DFB) lasers using high-density quantum dots are presented. Clearly opened eye diagrams obtained from −40 to 80°C with extinction ratios more than 5.2 dB.
The two-dimensional (2D) Z-scheme system is an effective design for producing hydrogen via photocatalytic water splitting (PWS). This study established a 2D van der Waals (vdW) SnC/Sc 2 CCl heterojunction PWS....
Silicon carbide (SiC), a wide-bandgap semiconductor, is gaining importance in quantum technologies due to its promising color centers. Among SiC polytypes, 4H-SiC stands out with wide bandgap and low impurities, making it ideal for center research. Femtosecond laser direct writing enables precise creation of centers, offering nanoscale accuracy. This study explores the optical properties structural changes induced by writing. Techniques such as Raman spectroscopy, atomic force microscopy,...
Abstract A fully connected quantum network with a wavelength division multiplexing architecture plays an increasingly pivotal role in information technology. With such architecture, entanglement-based has been demonstrated which entangled photon-pair source distributes entanglement resources to many users. Despite these remarkable advances, the scalability of could be constrained by finite spectrum resource, where $${\mathscr{O}}\left({N}^{2}\right)$$ <mml:math...
SnO2 nanobelts (NBs) have unique structural and functional properties which attract great attention in gas detecting. In this work, Eu doping is adopted to improve the sensitivity of pure SnO2, especially enhance response one single gas. The Eu-doped NBs, pure-SnO2 their NB devices are fabricated by simple techniques. sensing two sensors been experimentally investigated. It found that possess long-term stability with rapid performance, improves electronic performance gas-sensing response,...
In photonic quantum information processing, spectrally uncorrelated biphoton states generated from nonlinear crystals are a fundamental resource, but rare one, and researchers have only used few kinds of to produce such states, over limited wavelength range. This study reveals that family phosphate arsenate salts similar potassium dihydrogen (KDP) can be generate pure (as high as 98%) near-infrared telecommunication wavelengths. The key is engineer group-velocity matching.