Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Mode-locking, i.e., the phase-locked superposition of resonator modes, enables ultrafast laser beam dynamics. Here, high-speed beam scanning at 79.6 MHz is achieved by generating sets of phase-locked transverse resonator modes. Such transverse mode-locked (TML) beams are obtained via conversion in an empty, optical resonator from incident longitudinal mode-locked beams. In this conversion scheme the modal power and phase distributions can be controlled to alter the dynamics of the emerging scanning beams. It is shown, that the Pound-Drever-Hall stabilization scheme is applicable to compound TML resonances and it is used to maintain resonance between the incident beam's spectral components and the transverse mode resonances. This way, TML states are reliably generated and continuously emitted.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.523812 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A digital workflow combining root submergence, a definitive intermediate abutment, and a custom 3D printed healing abutment for a natural peri-implant emergence profile.
J Prosthet Dent
September 2025
Associate Professor, Department of Dental Surgery, Faculty of Dental Surgery, University of Malta, Malta. Electronic address:
A digital workflow merging root submergence, immediate dental implant and definitive intermediate abutment placements, and custom healing abutment fabrication to enhance esthetic and biological outcomes in immediate implant procedures is described. The procedure involves a prosthetically driven plan on intraoral and cone beam computed tomography (CBCT) scans, digital planning using a specialized software program, the creation of a surgical guide, and the digital design of custom components. A 3-dimensionally (3D) printed healing abutment was produced by following specific protocols.
View Article and Find Full Text PDFEffects of cone-beam computed tomography with different FOV parameters on simulated internal root resorption volume.
Braz Oral Res
September 2025
Ankara University, Faculty of Dentistry, Department of Oral and Maxillofacial Radiology, Ankara, Turkey.
The aim of this in-vitro study was to verify which field of view (FOV) in cone-beam computed tomography (CBCT) yields greater accuracy in the detection of internal root resorption (IRR) volume, in comparison to the gold standard of micro-computed tomography (micro-CT) and to a physical method. Twenty-five extractedsingle-rooted teeth were scanned by CBCT with two different FOV parameters (6x6-FOV and 10x10-FOV) and via micro-CT. The volume of dental hard tissue was measured on these images.
View Article and Find Full Text PDFMastering the art of sectioning: a comprehensive guide to slide-microtome technology and histological applications.
Front Vet Sci
August 2025
Fish Research Centre, Faculty of Environmental Agricultural Sciences, Arish University, El Arish, Egypt.
The well-known technique of microtomy, which is an essential cutting tool, was first developed for light and transmission electron microscope uses, but it is currently also utilized to prepare specimens for atomic force microscopy (AFM), ion microscopy using a focused ion beam (FIB), and scanning electron microscopy (SEM). Ultramicrotomy can only be used on soft substances and metals that are sufficiently ductile to be cut with a diamond knife. Before being sliced by a microtome, many soft materials must first go through numerous preparatory processes.
View Article and Find Full Text PDFEvaluating the technical feasibility of biology-guided dose painting in proton therapy.
Phys Imaging Radiat Oncol
July 2025
Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.
Biology-guided voxel-level inverse prescription mapping for dose painting (DP) using diffusion-weighted magnetic resonance imaging was evaluated for technical feasibility in proton therapy for 10 skull-base chordoma patients. Patient-specific DP prescriptions were generated from tumour cellularity and implemented in a clinical treatment planning system. Compared with uniform plans, DP achieved lower conformity (although >97 %), improved target dose metrics, reduced doses to most organs at risk, and increased tumour control probability without exceeding clinical constraints.
View Article and Find Full Text PDFOptimizing dose rate to minimize delivery time in proton pencil beam dose-driven continuous scanning.
Med Phys
September 2025
Department of Radiation Oncology, Mayo Clinic in Florida, Jacksonville, Florida, USA.
Background: Dose-driven continuous scanning (DDCS) enhances the efficiency and precision of proton pencil beam delivery by reducing beam pauses inherent in discrete spot scanning (DSS). However, current DDCS optimization studies using traveling salesman problem (TSP) formulations often rely on fixed beam intensity and computationally expensive interpolation for move spot generation, limiting efficiency and methodological robustness.
Purpose: This study introduces a Break Spot-Guided (BSG) method, combined with two acceleration strategies-dose rate skipping and bounding-to optimize beam intensity while minimizing beam delivery time (BDT).