Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
We experimentally studied the supercontinuum induced by femtosecond filamentation in different liquid media. Using a Mach-Zehnder interferometer, we determined the relative filamentation thresholds () of these media. Research has shown that the value of the filamentation threshold is greater than that of (critical power for self-focusing), which can mainly be attributed to the strong dispersion effect. Changing the focal length of the focusing lens affects filamentation dynamics, thereby affecting the measured results regarding the filamentation threshold. With shorter focal lengths, the linear focusing (i.e., geometrical focusing) regime dominates, and the measured values of for different liquid media are almost the same; as the focal length becomes larger, self-focusing starts to play a role, making the values of for different media different from each other. This study presents an efficient method for investigating the femtosecond filamentation phenomenon in liquid media, helpful to provide further insights into the physical mechanism of supercontinuum generation via femtosecond filamentation in liquid media.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10675478 | PMC |
| http://dx.doi.org/10.3390/s23229163 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Bioinspired Vacuum Generation via Pressure-to-Vacuum Conversion for Manipulating all Phases of Matter.
Soft Robot
September 2025
Bioinspired Soft Robotics Laboratory, Istituto Italiano di Tecnologia, Genoa, Italy.
Animal diaphragm-lung systems are soft organs that generate a controllable vacuum. Elephants, as rare land animals, can manipulate all three states of matter using their lung-generated vacuum. In soft robotics, however, current vacuum generation relies on rigid components, and no single soft device effectively handles all states of matter.
View Article and Find Full Text PDFBoosting POM-Ionosolv Biorefining of Lignocellulosic Biomass by Using Redox-Balanced Polyoxometalate Catalysts in Methanolic Ionic Liquid Reaction Media.
ChemSusChem
September 2025
Institute of Technical and Macromolecular Chemistry, University of Hamburg, Bundesstraße 45, 20146, Hamburg, Germany.
This article presents an advanced iteration of the polyoxometalate (POM)-Ionosolv concept to generate biobased methyl formate in high yield and a bleached cellulose pulp from lignocellulosic biomass in a single-step operation by using redox-balanced POM catalysts and molecular oxygen in alcoholic ionic liquid (IL) mixtures. The performance of the three Ionosolv-ILs triethylammonium hydrogen sulfate ([TEA][HSO]), N,N-dimethylbutylammonium hydrogen sulfate ([DMBA][HSO4]), and tributylmethylphosphonium methyl sulfate ([TBMP][MeSO]), mixed with methanol (MeOH) (30/70 wt%), is evaluated by methyl formate yield from extracted hemicellulose and lignin as well as purity of the bleached cellulose pulp in the presence of various Keggin-type POMs. The redox-balanced HPVMnMoO POM catalyst in [TBMP][MeSO]/MeOH emerge as the most effective combination, achieving 20% methyl formate yield from commercial beech wood.
View Article and Find Full Text PDFHomogeneous Catalysts for Hydrogenative PHIP Used in Biomedical Applications.
Anal Sens
January 2025
Advanced Imaging Research Center, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390 United States.
At present, two competing hyperpolarization (HP) techniques, dissolution dynamic nuclear polarization (DNP) and parahydrogen (para-H) induced polarization (PHIP), can generate sufficiently high liquid state C signal enhancement for in vivo studies. PHIP utilizes the singlet spin state of para-H to create non-equilibrium spin populations. In hydrogenative PHIP, para-H is irreversibly added to unsaturated precursors, typically in the presence of a homogeneous catalyst.
View Article and Find Full Text PDFThe effects of brines relevant to Mars and the ocean worlds on bacterial growth reflect salt-specific responses across water activity.
Arch Microbiol
September 2025
Department of Biological Sciences, Wichita State University, 26, 1845 Fairmount, Wichita, KS, 67260, USA.
Freezing point depression due to high salt concentration is crucial for liquid water to exist on cold worlds, expanding special regions where habitats are plausible. Determination of the growth tolerances of terrestrial microbes in analog systems impacts planetary protection protocols aimed at preventing interference with life detection missions or potential native ecosystems on celestial bodies. We measured the salinity tolerances of 18 salinotolerant bacteria (Bacillus, Halomonas, Marinococcus, Nesterenkonia, Planococcus, Salibacillus, and Terribacillus).
View Article and Find Full Text PDFProto-SLIPS: Slippery Liquid-Infused Surfaces that Release Highly Water-Soluble Agents.
ACS Appl Mater Interfaces
September 2025
Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave., Madison, Wisconsin 53706, United States.
Slippery liquid-infused porous surfaces (or "SLIPS") can prevent bacterial surface fouling, but they do not inherently possess the means to kill bacteria or reduce cell loads in surrounding media. Past reports show that the infused liquids in these materials can be leveraged to load and release antimicrobial agents, but these approaches are generally limited to the use of hydrophobic agents that are soluble in the infused oily phases. Here, we report the design of so-called "proto-SLIPS" that address this limitation and permit the release of highly water-soluble (or oil-insoluble) agents.
View Article and Find Full Text PDF