A5076561205- Photonic and Optical Devices
- Optical Network Technologies
- Advanced Fiber Optic Sensors
- Advanced Photonic Communication Systems
- Advanced Fiber Laser Technologies
- graph theory and CDMA systems
- Semiconductor Lasers and Optical Devices
- Optical Wireless Communication Technologies
- Photonic Crystal and Fiber Optics
- Chaos-based Image/Signal Encryption
- Neural Networks and Reservoir Computing
- Solid State Laser Technologies
- Quantum optics and atomic interactions
- Laser Design and Applications
- Photonic Crystals and Applications
- Acoustic Wave Resonator Technologies
- Optical Coatings and Gratings
- Plasmonic and Surface Plasmon Research
- Orbital Angular Momentum in Optics
- PAPR reduction in OFDM
- Quantum Information and Cryptography
- Coding theory and cryptography
- Chaos control and synchronization
- Power Systems and Renewable Energy
- Metamaterials and Metasurfaces Applications
Harbin Institute of Technology
2014-2025
Nanjing University of Information Science and Technology
2018-2025
Institute of Optics and Electronics, Chinese Academy of Sciences
2019-2024
Guilin University of Technology
2024
Southwest University
2017-2023
City University of Hong Kong
2022
Tianjin University
2022
Hong Kong Polytechnic University
2020-2021
Nanjing University
2020
Harbin Engineering University
2020
Abstract A meta‐lens is an advanced flat optical device composed of artificial antennas. The amplitude, phase, and polarization incident light can be engineered to satisfy the application requirements meta‐lenses. Meta‐lenses designed achieve a variety functions, such as diffraction‐limited focusing, high focusing efficiency, aberration correlation, which are useful in various scenarios. This review focuses on recent progress meta‐lenses, from fundamentals applications. present challenges...
The optical illusion affects depth-sensing due to the limited and specific light-field information acquired by single-lens imaging. incomplete depth or visual deception would cause cognitive errors. To resolve this problem, an intelligent compact meta-device that is miniaturized, integrated, applicable for diverse scenes in all light levels demonstrated. multifunction stereo vision system adopts array with 3600 achromatic meta-lenses a size of 1.2 × mm2 measure over 30 cm range deep-learning...
A novel parallel structured fiber-optic Fabry-Perot interferometer (FPI) based on Vernier-effect is theoretically proposed and experimentally demonstrated for ultrasensitive strain measurement. This sensor consists of open-cavity closed-cavity FPI, both which are connected in via a 3 dB coupler. The implemented sensing, while the reference. Experimental results show that FPI can provide an ultra-high sensitivity -43.2 pm/με, 4.6 times higher than single FPI. Furthermore, simple fabrication,...
Abstract Spatial manipulation of a precise number viruses for host cell infection is essential the extensive studies virus pathogenesis and evolution. Albeit optical tweezers have been advanced to atomic level via cooling, it still challenging efficiently trap manipulate arbitrary in an aqueous environment, being restricted by insufficient strength forces lack multifunctional spatial techniques. Here, employing hopping flexibility moving laser position, with large trapping area demonstrated,...
This paper proposes a high-security chaotic encrypted power sparse coding division (CE-PSCD) scheme for 7-core fiber based on non-orthogonal multiple access (NOMA) technology. The method utilizes multiplexing to realize parallel transmission of two signals. Joint encryption the four-dimensional region is realized using constellation mapping encryption, carrier frequency symbol scrambling, and code scrambling. What we believe be new dimension autonomously designed codes proposed. Meanwhile,...
A synergistic effect exists when BTAH and iodide ions are used together to prevent the corrosion of copper in sulfuric acid. The nature this has been studied systematically by using electrochemical techniques x‐ray photoelectron spectroscopy. is due largely formation a film Cu(IBTA) complex probably polymeric nature. This new greatly depresses dissolution.
We experimentally demonstrate transverse load and strain sensing based on a fiber optic Fabry-Perot interferometer (FPI) with special air cavity, which was created by fusion splicing single mode (SMF), hollow core (HCF) several electrical arc discharges. The cavity height of this structure is higher than the cladding diameter SMF so that it can sense high sensitivity. sensitivity FPI sensor 1.31 nm∕N about 5 times more sensitive compared to current tip (0.2526 nm∕N). Meanwhile, also measure...
We report a novel fiber-optic hybrid-structured Fabry-Perot interferometer (HSFPI) based on large lateral offset splicing for simultaneous measurement of strain and temperature with advantages high sensitivity, low cost, easy fabrication. The high-strain sensitivity 28.95 pm/με low-temperature 0.54 pm/°C are obtained air cavity, is over five times compared to the current HSFPI (5.18 pm/με). In addition, sensitivities silica cavity are, respectively, 1.59 12.71 pm/°C. Thus, due different...
Abstract Meta-lens has successfully been developed for a variety of optical functions. We demonstrate light-field edge detection imaging system with gallium nitride achromatic meta-lens array. It enables from one dimension to three dimensions. The designed array consists 60 by meta-lenses, which operate in the visible range 400 660 nm. All light field information objects scene can be captured and computed. focused images dimensions are extracted depth estimation image rendering. Three is two...
This work presents a differential humidity sensor by longitudinally stacking the sensing and referencing substrate integrated waveguide (SIW) re-entrant cavity resonators (RECRs) for relative (RH) detection. Three different technologies, such as air-filled substrate, metal grid holes (METGH) sensitive material, are to enhance response. Firstly, introduction of METGH can effectively improve flowability humid air, reduce response time. Secondly, PEDOT:PSS is used (HS) material deposited in...
This paper proposes a probabilistic shaping orthogonal frequency division multiplexing passive optical network (PS-OFDM-PON) based on chaotic constant composition distribution matching (CCDM). With the implementation of four-dimensional hyperchaotic Lv system, and encryption are realized with low complexity process signal modulation, so as to enhance system performance in presence bit error rate (BER) security. An 8.9 Gb/s encrypted PS-16 quadrature amplitude modulation (QAM)-OFDM...
An ultra-short high-temperature fiber-optic sensor based on a silicon-microcap created by single-mode fiber (SMF) and simple fusion splicing technology is proposed experimentally demonstrated. A section of the SMF with at one end connected to “ peanut ” structure build microcap-based optical improved Michelson interferometer (MI). The optimal discharge parameters microcap length has been investigated achieve best extinction ratio 6.61 dB. size this MI 560 µm about 18 times shorter compared...
ABSTRACT A novel liquid level sensor is devised, leveraging the principle of Fabry‐Perot interferometry (FPI). The amalgamates micro‐arc and air cavity structures. fabricated through flame pyrolysis, while created by fusion splicing a SiO 2 microtube with single‐mode fiber (SMF). When alterations occur in either or temperature, spectral information primarily manifests as variations reflected light intensity. Consequently, it provides new perspective for temperature measurements. FPI...
The parallel structured fiber-optic Fabry-Perot interferometer (FPI) is theoretically proposed and experimentally demonstrated for transverse load measurement based on Vernier-effect. This kind of sensor consists a hollow microsphere cavity FPI sensing function an air reference, both which are connected by 3 dB optical fiber coupler with the functionality Experimental results indicate that can provide high sensitivity -3.75 nm/N, 3.4 times higher than single FPI. Moreover, excellent features...
This letter presents a miniaturized differential microfluidic sensor by longitudinally integrating two substrate integrated waveguide (SIW) re-entrant cavity resonators (RECRs) for characterization of dielectric liquid materials. The mutual coupling between these RECRs is prevented the stacked metal wall them. feedline implemented microstrip-to-stripline-to-SIW transformer in proposed to excite simultaneously. dependence complex permittivity calibrated samples on resonance frequency shift...
In this paper, we propose a novel optical non-orthogonal multiple access (NOMA) scheme based on orthogonal chirp division multiplexing (OCDM) in low-cost intensity modulation and direct detection system for passive networks (PON). The proposed OCDM-NOMA can effectively improve spectral efficiency serve more users by spectrally overlaid OCDM signals power domain. Under the advantages of spread spectrum, also enhance bit error rate (BER) performance compared to NOMA frequency (OFDM). A 17.8...
In this paper, a modified substrate integrated waveguide (SIW) re-entrant microwave sensor is implemented by an annular slot loaded SIW cavity resonator (RECR) to evaluate complex permittivity of liquid under test (LUT). The fringe electric field (E-Field) around metal post the RECR suppressed loading plane disk. And then, narrow slot, corresponding non-linear capacitor transferred as which has linear response real LUT and connected in parallel with gap plate RECR, then physical equivalent...
This Letter proposes a high-security and high-order signal transmission method that is based on delta-sigma modulation (DSM) discrete memristive-enhanced chaos (DMEC). We employ the DMEC for encryption of DSM signals to achieve key space 10 98 in size. Moreover, we demonstrated 16384QAM using over 25 km single-mode fiber intensity-modulated direct detection (IMDD) system. The experimental results show proposed ultrahigh-order scheme guarantees high performances with improved security...
Abstract A new type of Michelson interferometer (MI) based on a double hook structure is proposed for measurement liquid level and temperature. The optical fiber MI the double‐hook fabricated using hydroxide flame heating device. Furthermore, angle sensing length can be controlled by rotating platform. sensor fixed ruler, which set vertically iron support stand employing beaker clamp, position clamp adjusted so that overflows water surface in beaker. temperature sensitivities are 129.8 pm/°C...
In this study, a folded substrate integrated waveguide (FSIW) re-entrant cavity sensor (RECS) is proposed for full characterization of magnetic-dielectric powder materials. the cavity, electric field (E-field) and magnetic (H-field) are localized at two different regions detecting complex permittivity permeability independently. Due to extremely weak H-field in high-intensity E-field region impact high loss magneto-dielectric (MD) materials on measurement ignored, which simplifies algorithm...