Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Micro-fabrication based on structured-beam-assisted Two-Photon Polymerization (2 PP) provides a rapid and flexible method for the manufacture of microstructures with complex morphologies. The tunable Abruptly Autofocusing Vortex (AAFV) beams were designed theoretically and generated experimentally based on a single-phase-only Spatial Light Modulator (SLM). Their specific spatial intensity distributions were further utilized to assist the fabrication of a bowl-shaped Three-Dimensional (3D) micro-trap array via 2 PP with a one-step exposure technique. Finally, the fabricated microstructures act as a novel tool for the trapping and spatial positioning of micro-particles with different diameters, which shows potential applications in fiber optics and cell study.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10343008 | PMC |
| http://dx.doi.org/10.3390/ma16134625 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Water-Immersed GaP Huygens' Meta-Optics for Visible Structured Light Generation.
Adv Sci (Weinh)
August 2025
Institute of Electronics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300010, Taiwan.
Underwater photonics is essential for imaging and analysis in biomedical technologies, as well as for communication and autonomous vehicle networks in the Internet of Underwater Things (IoUT). Structured light enables spatial control of beams, offering new opportunities for underwater sensing, imaging, and signal transmission. However, compact and robust water-immersed photonic devices remain challenging to realize.
View Article and Find Full Text PDFIn this Letter, we report what we believe to be a new type of abruptly autofocusing beams, termed symmetric butterfly Gaussian beams (SBGBs). The proposed beams appear to have a high degree of tunability for their focal position, focal length, focal intensity, and propagation trajectory. In addition, we propose a deep learning-based model for quick and accurate predictions of the propagation properties of SBGBs, achieving an average relative error of no more than 2.
View Article and Find Full Text PDFWe explore the behavior of abruptly autofocusing (AAF) beams in a saturable nonlinear medium. Stable solitons with different distribution structures are found under different combinations of external electric field and light field structure. Furthermore, the evolution of circular Pearcey Gaussian (CPG) beams in a photorefractive strontium barium niobate crystal is investigated.
View Article and Find Full Text PDFIn this paper, the circular Bessel Gaussian beams (CBGBs) carrying power-cotangent-phase vortices are firstly introduced, whose propagation dynamics are explored theoretically and experimentally. The number of spiral lobes, rotation direction, rotation angle, and shape of the new type of beam can be flexibly modulated by controlling multiple parameters of power-cotangent-phase vortices. Accordingly, the effect of multiple beam parameters on abruptly autofocusing ability is quantified and compared by using the K-value curve that is described by ratio Im/I, where Im and I correspond to the maximum intensities at different propagation distance and the initial plane, respectively.
View Article and Find Full Text PDFArticle Synopsis
- - This research demonstrates how to create Poincaré polarization singularities that resemble tornadoes by combining two orthogonally polarized ring-Airy beams that possess orbital angular momentum (OAM).
- - The singularities are influenced by phase vortices that align with the high-intensity areas of one of the beams, causing them to evolve along twisting and shrinking paths as they travel.
- - They achieve angular acceleration rates exceeding 120 rad/mm, making these Poincaré tornadoes potentially useful in fields such as singular optics, wavefront manipulation, polarization engineering, and complex media imaging.