A5107746779- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Superconducting Materials and Applications
- Micro and Nano Robotics
- Advanced Sensor and Energy Harvesting Materials
- Advanced Materials and Mechanics
- Photonic Crystals and Applications
- Nonlinear Optical Materials Studies
- Magnetic Bearings and Levitation Dynamics
- Advanced Fiber Laser Technologies
- Photorefractive and Nonlinear Optics
- Neural and Behavioral Psychology Studies
- Photochromic and Fluorescence Chemistry
- Ionosphere and magnetosphere dynamics
- Electric Motor Design and Analysis
- Magnetic Properties and Applications
- Non-Destructive Testing Techniques
- Modular Robots and Swarm Intelligence
- 3D Printing in Biomedical Research
- Atomic and Subatomic Physics Research
- Orbital Angular Momentum in Optics
- Magnetic Field Sensors Techniques
- Iterative Learning Control Systems
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Advanced Control Systems Optimization
Beihang University
2005-2025
University of Science and Technology of China
2020-2024
Hefei National Center for Physical Sciences at Nanoscale
2021-2023
Ministry of Industry and Information Technology
2022
Capital Normal University
2022
Hefei University of Technology
2021
Anhui Normal University
2021
Sichuan University
2021
Inspired by the flexible joints of humans, actuators containing soft have been developed for various applications, including grippers, artificial muscles, and wearable devices. However, integrating multiple microjoints into robots at micrometer scale to achieve multi-deformation modalities remains challenging. Here, we propose a two-in-one femtosecond laser writing strategy fabricate composed hydrogel metal nanoparticles, develop multi-joint microactuators with (>10), requiring short...
The emerging two-photon polymerization (TPP) technique enables high-resolution printing of complex 3D structures, revolutionizing micro/nano additive manufacturing. Various fast scanning and parallel processing strategies have been proposed to promote its efficiency. However, obtaining large numbers uniform focal spots for high-speed remains challenging, which hampers the realization higher throughput. We report a TPP platform that combines galvanometric mirrors liquid crystal on silicon...
Many fuzzy control schemes used in industrial practice today are based on some simplified reasoning methods, which simple but at the expense of losing robustness, missing characteristics, and having inconsistent inference. The concept optimal is introduced this paper to overcome these shortcomings. main advantage that an integration with a PID structure will generate new type fuzzy-PID inherent optimal-tuning features for both local performance global tracking robustness. This controller...
Abstract Nonlinear holography has recently emerged as a novel tool to reconstruct the encoded information at new wavelength, which important applications in optical display and encryption. However, this scheme still struggles with low conversion efficiency ineffective multiplexing. In work, we demonstrate quasi-phase-matching (QPM) -division multiplexing three-dimensional (3D) nonlinear photonic crystal (NPC). 3D NPC works hologram, multiple images are distributed into different Ewald...
Soft pressure sensors based on liquid metals (LMs) may find broad applications, but it is challenging to fabricate such that can achieve high stress resolution without additional parts. Herein, a method named laser-induced selective adhesion transfer (LISAT) proposed. LISAT pattern LM by selectively changing of the poly(dimethylsiloxane) (PDMS) surface into low with aid rough micro/nanostructures induced femtosecond laser. Based this principle, microchannels controllable shapes be obtained...
Abstract Biomimetic stimuli‐responsive structure colors (SCs) can improve the visualization and identification in micro functional field such as information encryption/decryption smart actuators. However, it is still challenging to develop ability 4D print arbitrary submerged colorful patterns with materials at microscale. Herein, a hydrogel photoresist feature resolution (98 nm) for fabrication of microscopic SCs by femtosecond direct laser writing method developed. The printed woodpile are...
Structural color (SC) has enormous potential for improving the visualization and identification of functional micro/nano structures information encryption intelligent sensing. Nevertheless, achieving direct writing SCs at scale change in response to external stimuli simultaneously is rather challenging. To this end, we directly printed woodpile (WSs) utilizing femtosecond laser two-photon polymerization (fs-TPP), which demonstrated obvious under an optical microscope. After that, achieved by...
Nonlinear beam shaping can be dynamically controlled by temperature or polarization to form switchable nonlinear structured beams, which constitute an unprecedented system for realizing optical encryption at new frequencies and high-dimensional nonclassical light sources. However, previous works were limited a trade-off between the conversion efficiency modulation dimension of beam. It is still technologically challenging achieve efficient multidimensional shaping. Here, we demonstrate...
Abstract In recent decades, magnetic shields have provided basic experimental environments for the measurements of extremely weak fields represented by biological signal. Excellent shielding performances, including low residual field and high factor (SF), are necessary to ensure quality these signals avoid interference external fields. The performance same device can be affected different degaussing test conditions, which remains systematically studied. this paper, experiments with variable...
Abstract Microvascular networks (MVNs) are crucial transportation systems in living creatures for nutrient distribution, fluid flow, energy and so on. However, artificial manufacturing of MVNs, especially capillary with diameters (average 6 ≈ 9 µm), has always been a problem bottleneck tissue engineering due to the lack efficient methods. Herein, dynamic holographic processing method is reported producing 3D complex biomimetic morphologies. Combining axial scanning focused beam display...
Abstract As the dominant shielding functional material, permalloy sheet primarily determines static and low-frequency performances of magnetically shielded room (MSR). However, lack measurement sheets for practical use would lead to a non-negligible evaluation error in MSR performance. Therefore, an estimation technique factor (SF) remanence is proposed this paper while considering nonlinear magnetic characteristics tested by single tester field degaussing situation (L-D-SST). First,...
Abstract The demand for spatial nonlinear magnetic fields (SNMF) spans diverse domains, encompassing medical applications like drug transportation and aerospace such as attitude control. Existing designs of field coils predominantly focus on uniform gradient the complexity distribution often leads to intricate solution processes. This paper presents a novel approach coil design, addressing challenge SNMF by reconstructing characteristic matrix within traditional target method (TFM). To solve...
In this Letter, a magnetically driven rotary microfilter that enables switching the modes of filtering and passing is fabricated in microfluidic devices via two-photon polymerization using femtosecond laser for selective particles. The high-quality integration ensured by accurately formulating magnetic photoresist optimizing processing parameters. By changing direction external field, can be remotely manipulated to rotate desired angles, thereby achieving “filtering” or “passing” mode on...
Abstract Airy beams, which propagate along a curved trajectory, have been widely utilized in optical tweezers, biomedical analysis, and material processing. However, the dynamic regulation of nonlinear beams is still challenging. Here, we demonstrate directionally switchable via three-dimensional (3D) photonic crystals (NPCs) fabricated by femtosecond laser erasing technique. The 3D NPCs contain several sequential arrays spatially modulated nonlinearities with different spatial frequencies...
The synthesis and characterization of persistent radical cations featuring heteronuclear 2<italic>c</italic>–3<italic>e</italic> σ-bonds between chalcogen pnicogen atoms.
Millirobots that can be actuated and accurately steered by external magnetic fields, are highly desirable for bioengineering wearable devices. However, existing designs of millirobots limited their specific material composition, hindering wider application due to a lack scalability. Here, we present method the generation heterogeneous based on coatings. The coatings, composed hard-magnetic CrO2 particles dispersed in an adhesive solution, impart actuation diverse substrates with planar...
In this Letter, we propose a type of continuous phase vortex gratings (CPVGs), which are able to generate series beams with equal or proportional diffracted energies and different topological charges (TCs). A set CPVGs dimensions (60 × 60 1.1 μm3) directly designed by mathematical equations, avoids the use iterative algorithms. The fabricated femtosecond laser direct writing (FsLDW) photoresist, experimentally generated in good agreement theoretical designs, exhibiting high optical...
The present study compared an immersive virtual reality-based attentional bias modification (immersive VR-ABM) with the desktop version of VR-ABM and game VR-game) to examine possible effect presence on self-reported emotional reactions a stressful task. One hundred twenty participants were randomly assigned into three groups, each group received three-turn induction-intervention training. Anxiety symptoms assessed at pre-induction, post-induction, post-training. Results showed that anxiety...