We report on an all-fiber system delivering more than 100 μJ pulses with a top-hat beam output in the few nanoseconds regime at 10 kHz. The linearly polarized flattened beam is obtained thanks to a 3-mm-long single-mode microstructured fiber spliced to the amplifier's output.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OL.39.004780 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Absolute Quantification of Glutathione Using Top-Hat Optics for IR-MALDESI Mass Spectrometry Imaging.
J Mass Spectrom
October 2024
FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, Raleigh, North Carolina, USA.
Infrared matrix-assisted laser desorption electrospray ionization (IR-MALDESI) uses an infrared laser to desorb neutral biomolecules with postionization via ESI at atmospheric pressure. The Gaussian profile of the laser with conventional optics results in the heating of adjacent nonablated tissue due to the energy profile being circular. A diffractive optical element (DOE) was incorporated into the optical train to correct for this disadvantage.
View Article and Find Full Text PDFSimple and robust 3D MINFLUX excitation with a variable phase plate.
Light Sci Appl
June 2024
European Molecular Biology Laboratory, Cell Biology and Biophysics, Heidelberg, Germany.
MINFLUX has achieved extraordinary resolution in superresolution imaging and single fluorophore tracking. It is based on localizing single fluorophores by rapid probing with a patterned beam that features a local intensity minimum. Current implementations, however, are complex and expensive and are limited in speed and robustness.
View Article and Find Full Text PDFNanosecond multipulse retinal damage thresholds of elongated irradiance profiles in explant measurements and simulations.
J Biomed Opt
December 2023
Karlsruhe Institute of Technology, Institute for Information Processing Technologies, Karlsruhe, Germany.
Significance: The database for multipulse retinal damage thresholds for the laser safety standard (IEC 60825-1:2014) is confined, especially for elongated irradiation profiles. To ensure eye safety, retinal damage thresholds ( values) need to be determined.
Aim: This study aims to examine nanosecond multipulse scenarios.
Development and Application of Prototype System Based on Light-Emitting Diode Arrays (660 nm) with a Top Hat Beam Profile in Order to Optimize Photobiomodulation Protocols for Treatment of Radiation-Induced Oral Mucositis in Rats.
Photobiomodul Photomed Laser Surg
November 2023
Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Oral mucositis (OM) is a common adverse effect of radiation to the head and neck. Recent research has shown that extra oral photobiomodulation (EO-PBM) reduces the severity of OM. However, appropriate EO-PBM therapy parameters for OM severity reduction have not been documented.
View Article and Find Full Text PDFWe report on a simple method for reduction of the depolarization loss in an end-pumped Tm:YO ceramic laser by using a near-field ring-shaped pump beam. Initially, we theoretically derive the expression of the depolarization loss in a bulk laser end-pumped with a near-field flat-top-hat or ring-shaped beam, where a significant reduction of depolarization loss in the latter case is presented. Experimental verification is thereafter carried out with a Tm:YO ceramic laser employing these two different pump configurations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!