A5101917962- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Photonic and Optical Devices
- Orbital Angular Momentum in Optics
- Advanced Antenna and Metasurface Technologies
- Cloud Computing and Resource Management
- Power Systems and Renewable Energy
- Service-Oriented Architecture and Web Services
- 2D Materials and Applications
- Advanced Sensor and Control Systems
- Metamaterials and Metasurfaces Applications
- Photovoltaic Systems and Sustainability
- Superconducting Materials and Applications
- Spectroscopy and Laser Applications
- Distributed and Parallel Computing Systems
- Magnetic confinement fusion research
- IoT and Edge/Fog Computing
- Advanced Fiber Laser Technologies
- Smart Grid and Power Systems
- Random lasers and scattering media
- Liquid Crystal Research Advancements
- Integrated Energy Systems Optimization
- Power Systems and Technologies
- Photonic Crystals and Applications
- Antenna Design and Analysis
University of Electronic Science and Technology of China
2021-2024
Shanghai Maritime University
2023-2024
China Telecom
2024
China Telecom (China)
2024
Sun Yat-sen Memorial Hospital
2022
Sun Yat-sen University
2018-2022
Shanghai University of Engineering Science
2007-2019
North China Electric Power University
2019
Wuhan University
2012-2017
Fujian Jiangxia University
2017
We report in this communication the two-photon absorption (TPA)-induced room-temperature lasing performance of ZnO nanowires.Under femtosecond pulse-excitation at λ = 700 nm infrared regime, a remarkably low threshold 160µJ/cm 2 was observed for TPA-induced action, which is same order magnitude as that measured linear process.Time-resolved photoluminescence characterization pumped nanowires reveals presence fast decay (3-4 ps) stimulated emission compared to slow (50-70 spontaneous...
Two-dimensional transition-metal dichalcogenides (TMDC) are of great interest for on-chip nanophotonics due to their unique optoelectronic properties. Here, we propose and realize coupling tungsten diselenide (WSe2) monolayers circular Bragg grating structures achieve enhanced emission. The interaction between WSe2 the resonant mode structure results in Purcell-enhanced emission, symmetric geometrical improves directionality out-coupling stream emitted photons. Furthermore, this hybrid...
On-chip channelless diffraction-free beam guiding enables dense integration of optical circuits in a reconfigurable manner, where total internal reflection, which is considered the cornerstone guided-wave optics, utilized to confine light out-of-plane direction. Here, we theoretically propose physical mechanism achieve on-chip beyond cone, utilizing physics bound states continuum. A state continuum with tailored spatial dispersion plays an important role cancelling both in-plane diffraction...
We demonstrated the creation of large volume three-dimensional optical matter by optically trapping polystyrene spheres in a capillary and resulting switching operation. The formation was confirmed examining diffraction pattern trap region. Optical with an extinction ratio as ∼20dB realized. From dynamics matter, it found that transition from disordered state to ordered one appeared be quite fast while recovery system took much longer time.
On-time completion is an important QoS (Quality of Service) dimension for business cloud workflow systems. Due to the dynamic and uncertain system performance, failures on-time completion, namely temporal violations, often take place during runtime thus verification violation handling are required. Currently, throughput employed by a large number parallel instances as detector violations in collective way. However, based on throughput, it impossible locate exact activities services where...
FaaS enables users to focus on developing function codes rather than managing complex infrastructure, as the serverless computing platform takes responsibility for resource management and dynamically scales resources functions. While provides efficient hardware provisioning, they suffer from weaker performance due latency associated with startup. Startup refers time required prepare execution environments user To alleviate this latency, paper proposes a container scheduling policy aimed at...
We demonstrated a transition from disordered to an ordered state in colloidal liquid by utilizing Z-scan-based optical trapping. The Z-scan process plays role of gradually and continuously narrowing deepening the potential well. When trapping power was increased above certain level, self-induced transparency occurs, leading significant enhancement transmission. dynamic confirmed monitoring diffraction pattern region.
Success of cloud computing service depends on an acceptable pricing model, especially in the PaaS. As a dynamic platform, PaaS layer infrastructure and extends to application layer. How find optimal policy is problem for providers face stochastic demand. In this paper, we present approach model order get max profits. We analyze by multi-condition hybrid system. But also use theory revenue maximization cost minimization. When at current state, system content minimization build maximization, will most
Business process that facilitates the organization cooperation and resource sharing plays an important role in Community cloud (Comc). The nature of applications decentralized infrastructure Comc make it a big challenge ensuring execution efficiency business process, especially when requests are high concurrency. We present two-stage service replica strategy to improve by shortening response time request single reducing interaction among distributed services. initially utilize social network...
In this paper, evaluation index system of green building energy-saving technology was established on the basis comprehensive analysis factors affecting technology. This divided into two levels. Thermal performance maintenance structure, energy efficiency equipment, design management, operation management and indoor comfort health were one-level index, there are eighteen two-level indexes. Entropy weight method introduced to determine index. Fuzzy synthetic applied evaluation. On basis, a...
We investigate the dynamics of optical matter creation and annihilation in a colloidal liquid that was employed to construct an all-optical switch. It is revealed switching-on process can be characterized by Fermi-Dirac distribution function, while switching-off described steady state followed single exponential decay. The phase transition times exhibit strong dependence on trapping power. With increasing power, time decreases rapidly, switch-off increases significantly, indicating effects...
A user-centric no-cell (UCNC) framework has been proposed which enables different level coordination over a large number of TRPs. This paper presents some key technologies in UCNC with the focus on PoC UL grant- free transmissions architecture. Massive connectivity support is one three important scenarios 5G networks. The challenges to massive lie cost signaling overhead and transmission latency. An uplink based SCMA (sparse code multiple access) design proposed. scheme can provide levels...
Abstract A diode-pumped master oscillator power amplifier system based on a cryogenic Yb:YAG active-mirror laser has been developed. The performances of the at low temperature and room have investigated theoretically experimentally. maximum output energy 3.05 J with an optical-to-optical efficiency 14.7% achieved by using system.
针对现有算法无法有效解决混合噪声图像的阈值分割的问题,该文提出3维最小误差阈值法。该方法充分考虑图像像元点的灰度分布信息及像元点之间的灰度相关信息,结合图像灰度、均值和中值信息,构造出3维观测空间。然后基于相对熵定义出3维最佳阈值判别式。为了提高该算法的处理速度,给出相应的快速递推算法,其时间复杂度为O(L3)。实验结果表明,在不同噪声环境及非均匀光照条件下,尤其对混合噪声图像,与现有方法相比,文中算法均取得了更好的分割效果。
Community Cloud (CC) emerges as a rapid developing paradigm in many fields such research and education. Business process (BP) that facilitates the organization cooperation resource sharing plays an important role CC. The execution efficiency of BP has pivotal impact on quality community cloud services. CC applications often have high demands efficiency, which is affected by factors response time single service cost interactive activities among distributed This brings up issue optimizing for...
Digitalization of shipping aims to enhance efficiency, safety, and sustainability through advanced technology. However, fully digitalized relies heavily on the integration various communication devices, which exposes enterprises increasing cyber risks, such as DDoS attacks, malware data leakage threats. Unlike ground networks, networks have high latency low bandwidth, making traditional methods less accurate challenging meet network protection requirements enterprises. In contrast, deep...