A5024353201- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Mechanical and Optical Resonators
- Semiconductor Lasers and Optical Devices
- Photorefractive and Nonlinear Optics
- Quantum optics and atomic interactions
- Atomic and Subatomic Physics Research
- stochastic dynamics and bifurcation
- Plasmonic and Surface Plasmon Research
- Orbital Angular Momentum in Optics
- Cold Atom Physics and Bose-Einstein Condensates
- Conducting polymers and applications
- Optical Network Technologies
- Perovskite Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced Thermodynamics and Statistical Mechanics
- Advanced Photonic Communication Systems
- Organic Electronics and Photovoltaics
- Optical Coherence Tomography Applications
- Solid State Laser Technologies
- Organic Light-Emitting Diodes Research
- Spectroscopy and Laser Applications
- Nonlinear Dynamics and Pattern Formation
Nanjing University
2016-2025
Collaborative Innovation Center of Advanced Microstructures
2016-2025
Chongqing University
2023-2025
Lanzhou Jiaotong University
2025
Changchun Institute of Optics, Fine Mechanics and Physics
2022-2024
Chinese Academy of Sciences
2011-2024
China West Normal University
2020-2024
Nanjing University of Science and Technology
2024
Zhejiang Lab
2023-2024
East China University of Science and Technology
2024
Microwires and nanowires have been manufactured by using a wide range of bottom-up techniques such as chemical or physical vapor deposition top-down processes fiber drawing. Among these techniques, the manufacture wires from optical fibers provides longest, most uniform robust nanowires. Critically, small surface roughness high-homogeneity associated with (OFNs) provide low loss allow use for new applications communications, sensing, lasers, biology, chemistry. OFNs offer number outstanding...
2D materials exhibit superior properties in electronic and optoelectronic fields. The wide demand for high-performance devices promotes the exploration of diversified materials. Recently, covalent organic frameworks (COFs) have emerged as next-generation layered with predesigned π-electronic skeletons highly ordered topological structures, which are promising tailoring their properties. However, COFs usually produced solid powders due to anisotropic growth, making them unreliable integrate...
The flat endface of an optical fiber tip is emerging light-coupled microscopic platform that combines optics with planar micro- and nanotechnologies. Since different materials structures are integrated onto the endfaces, devices have miniature sizes, diverse functions, low insertion losses, making them suitable for all-optical networks. In recent decades, increasing demand multifunctional fibers has created opportunities to develop various on tips. Meanwhile, unconventional shape presents...
We present a novel refractometric sensor based on coated all-coupling optical-fiber-nanowire microcoil resonator which is robust, compact, and comprises an intrinsic fluidic channel. calculate the device sensitivity find its dependence nanowire diameter coating thickness. A as high 700 nm/RIU refractive index resolution low 10(-10) are predicted.
Liquid-crystal fork gratings are demonstrated through photopatterning realized on a DMD-based microlithography system. This supplies new strategy for generating fast switchable, reconfigurable, wavelength-tolerant and polarization-insensitive optical vortices. The technique has great potential in broad fields such as OAM-based quantum computations, communications, micromanipulation.
We experimentally demonstrated a refractometric sensor based on coated optical microfiber coil resonator. It is robust, compact, and comprises an intrinsic fluidic channel. A sensitivity of about 40nm/RIU (refractive index unit) has been measured, in agreement with predictions.
We present an ultra-small all-silica high temperature sensor based on a reflective Fabry-Perot modal interferometer (FPMI). Our FPMI is made of micro-cavity (approximately 4.4 microm) directly fabricated into fiber taper probe less than 10 mum in diameter. Its sensing head miniaturized single mode-multimode configuration without splicing. The mechanism the interference among reflected fundamental mode and excited high-order modes at end-faces. sensitivity approximately 20 pm/degrees C near...
An in-line, all-optical fiber modulator based on a stereo graphene–microfiber structure (GMF) utilizing the lab-on-rod technique was demonstrated in this study. Owing to its unique spring-like geometry, an ultra-long GMF interaction can be achieved, and modulation depth of ∼7.5 dB (∼2.5 dB) efficiency ∼0.2 mW−1 (∼0.07 mW−1) were for two polarization states. The are more than one order magnitude larger those other hybrid modulators, although at cost higher insertion loss. By further...
We experimentally demonstrate an all-silica first-order fiber Bragg grating (FBG) for high temperature sensing by focused ion beam (FIB) machining in a probe tapered to point. This 61-period FBG is compact (~36.6 μm long and ~6.5 diameter) with 200-nm-deep shallow grooves. have tested the sensor from room around 500 °C it shows sensitivity of nearly 20 pm/°C near resonant wavelength 1550 nm. kind takes up little space because its unique geometry small size may be integrated devices that work...
Abstract Silica‐fiber‐based sensors have the advantage of being small, electrically isolated, immune to electromagnetic fields, and easily incorporated into networks. However, only few them were used for monitoring physiological signals directly, due their limited sensitivity, comfort, safety. In this work, a simple architecture sensitive wearable photonic sensors, which are capable strain pressure detection healthcare applications is reported. The proposed sensor consists hybrid plasmonic...
A high-efficiency technique for optical vortex (OV) generation is proposed and demonstrated. The based on liquid crystal fork gratings with space-variant azimuthal orientations, which are locally controlled via polarization-sensitive alignment layers. Thanks to the rewritability of agent dynamic image digital micro-mirror device, can be instantly arbitrarily reconfigured. Corresponding vortices carrying arbitrary radial indices demonstrated a conversion efficiency 98.5%, exhibiting features...
Conjugated donor (D)–π–acceptor (A) copolymers, PBDT–TPD, PBDT–ttTPD, PBDTT–TPD, and PBDTT–ttTPD, based on a benzodithiophene (BDT) unit thieno[3,4-c]pyrrole-4,6(5H)-dione (TPD) acceptor were designed synthesized with different π bridges via Pd-catalyzed Stille-coupling. The between BDT TPD thiophene in PBDT–TPD 6-alkylthieno[3,2-b]thiophene PBDT–ttTPD PBDTT–ttTPD. effects of the optical, electrochemical, photovoltaic properties polymers investigated, addition to film crystallinities carrier...
Optical microfibers (MF), as a connection between fiber optics and nanotechnology, can realize enhanced light-matter/environment interactions, which benefit for optical sensing applications. In this paper, we introduce the fundamental working mechanisms of MF-based sensors review their recent progress status. We also discuss challenges opportunities MF provide some clues future work.
Abstract Smart wearable devices have made remarkable success in medical‐grade human vital signal monitoring and promoted the realization of precision medicine telemedicine. The flexibility stretchability are significant for devices, which determine adhesion to skin influence accuracy. Here, a stretchable ultrathin optical sensor based on self‐assembled wavy microfiber is proposed. Thanks “bottom–up” strategy, wave structure can be adjusted artificially, paving way design devices. Due...
The real-time, in-line analysis of light polarization is critical in optical networks, currently suffering from complex systems with numerous bulky opto-electro-mechanical elements tandemly arranged along the path. Here, we design and fabricate a fiber-integrated polarimeter by vertically stacking three photodetection units based on six-layer van der Waals materials, including one bismuth selenide (Bi2Se3) layer for power calibration, two twisted black phosphorus (BP) layers detection,...
Real-time intraocular pressure (IOP) monitoring plays a crucial role in glaucoma diagnosis and treatment. The wireless smart contact lens based on flexible inductor-capacitor-resistor (LCR) sensor is chip-free battery-free, demonstrating excellent application potential for physiological signal monitoring. To promote the use of LCR lenses clinical IOP monitoring, reliable, comfortable materials should be used sensitivity needs to realized. Here, we propose method producing hydrogel-based that...
Abstract Eye tracking techniques enable high-efficient, natural, and effortless human-machine interaction by detecting users’ eye movements decoding their attention intentions. Here, a miniature, imperceptible, biocompatible smart contact lens is proposed for in situ wireless eye-machine interaction. Employing the frequency encoding strategy, chip-free battery-free successes movement closure. Using time-sequential algorithm, has great angular accuracy of <0.5°, which even less than vision...
It is demonstrated for the first time that long nanowires with radii as small 30 nm can be manufactured a conventional coupler fabrication rig. The temporal deterioration of nanowire optical properties has been studied and correlated its mechanical behaviour. original transmission have restored by post-fabrication treatment.
A method to manufacture optical microfiber coil resonators embedded in Teflon has been demonstrated for what is the first time best of our knowledge. The resonator was obtained by wrapping a on low refractive index rod and coating it with resin. process investigated discussed. Resonances excess 9 dB, free spectral range approximately 0.8 nm, Q factors greater than 6000 have observed resonator. device compact, robust, portable.
A novel refractometric sensor based on an embedded optical nanowire loop resonator is presented. The device sensitivity has been studied in two typical configurations and its dependence the diameter coating thickness determined.
Accurate rotor position is essential for PMSM to execute vector control. The resolver and encoder have been most commonly employed, however, the bulk mass usually limit their further application in fields of aerospace robotic joints. This paper presents a sensor with minimum components, including linear Hall sensors an optimized permanent magnetic ring which can produce sinusoidal air-gap field. working principle discussed, errors its compensation are analyzed. Experimental results proved...