Ultraviolet
View article: Different Rise Times of Atomic Br M$_{4,5}$ 3d$_{3/2,5/2}$ Core Level Absorptions during Br$_{2}$ C $^{1}Π_{u}$ $1_{u}$ State Dissociation via Extreme Ultraviolet Transient Absorption Spectroscopy
Different Rise Times of Atomic Br M$_{4,5}$ 3d$_{3/2,5/2}$ Core Level Absorptions during Br$_{2}$ C $^{1}Π_{u}$ $1_{u}$ State Dissociation via Extreme Ultraviolet Transient Absorption Spectroscopy Open
The reported ''dissociation times'' for the Br$_{2}$ C ($^{1}Π_{u}$ $1_{u}$) state by various measurement methods differ widely across the literature (30 to 340 fs). We consider this issue by investigating attosecond extreme ultraviolet (X…
View article: A Review on the Laser Diode
A Review on the Laser Diode Open
Similar to a light-emitting diode, a laser diode (LD), sometimes injection laser diode, ILD, semiconductor laser, or diode laser is a semiconductor device that can produce lasing conditions at its junction when a diode is directly pumped w…
View article: Constraints on Features in the Cosmological Power Spectrum from Observations of the Epoch of Reionization
Constraints on Features in the Cosmological Power Spectrum from Observations of the Epoch of Reionization Open
We consider cosmological models with a power spectrum of perturbations featuring an enhanced amplitude on dwarf galaxy scales (with a "bump" or a "tilt"). Early formation of a large number of galaxies in such models, compared to the standa…
View article: Blue Lurkers Candidates across Open Clusters from UV excess and stellar rotation
Blue Lurkers Candidates across Open Clusters from UV excess and stellar rotation Open
Blue lurkers (BLs) are a recently identified class of exotic stars, first characterized in the open cluster M67 as lower-mass counterparts of blue straggler stars, photometrically hidden along the main sequence of their host clusters. They…
View article: Dynamic Weathering Behavior of Heat-Treated Chinese Fir: Surface Properties, Chemical Composition, and Microstructure
Dynamic Weathering Behavior of Heat-Treated Chinese Fir: Surface Properties, Chemical Composition, and Microstructure Open
Heat-treated wood is widely used for its eco-friendliness and aesthetic appeal. However, it is prone to fading under ultraviolet (UV) radiation, which diminishes its decorative effect and shortens its service life. To clarify the performan…
View article: Environment Friendly Coatings with Various UV-Resistance and Transparency States for Outdoor Applications
Environment Friendly Coatings with Various UV-Resistance and Transparency States for Outdoor Applications Open
Outdoor environments expose materials to intense and prolonged ultraviolet (UV) radiation, fluctuating temperatures, moisture, and airborne contaminants. This paper reviews the preparation methods of UV-resistant and transparent coatings a…
View article: Особливості фізичних характеристик атмосфери Плутона за результатами спостережень і модельних оцінок
Особливості фізичних характеристик атмосфери Плутона за результатами спостережень і модельних оцінок Open
The temperature near Pluto's surface varies from 33 K to almost 60 K due to the elongated shape of its orbit. Under such conditions, nitrogen, carbon monoxide, water, and methane freeze. The main component on the surface of the dwarf plane…
View article: Molecular hydrogen in filaments at high Galactic latitudes
Molecular hydrogen in filaments at high Galactic latitudes Open
Neutral atomic hydrogen ( absorption lines can be used to probe the cold neutral medium (CNM) at high Galactic latitudes. Cold with a significant optical depth from the GASKAP- survey is found to be located predominantly if not exclusively…
View article: Design of Continuous Fixed Plate Photo-Fenton Reactor Based on Fe3O4/TiO2@Al2SiO5 Fiber Board Photocatalyst and Application in Tetracycline Hydrochloride Degradation
Design of Continuous Fixed Plate Photo-Fenton Reactor Based on Fe3O4/TiO2@Al2SiO5 Fiber Board Photocatalyst and Application in Tetracycline Hydrochloride Degradation Open
To address the limitations of traditional photo-Fenton reactions in antibiotic wastewater treatment, this study designed a continuous flat-plate photo-Fenton reactor based on the Fe3O4/TiO2@Al2SiO5 fiberboard photocatalyst and applied it t…
View article: Removal of free residual chlorine from water using ultraviolet light photolysis systems: A review
Removal of free residual chlorine from water using ultraviolet light photolysis systems: A review Open
Water, an essential natural resource for society, is widely used in various sectors, whether as a raw material in industrial processes, agriculture, leisure, the production of electronic components, cosmetics, and pharmaceuticals, or, prim…
View article: Photoresponse Amplification of Silicon Carbide Ultraviolet Photodetector via<i> In Situ</i> Nitrogen Doping
Photoresponse Amplification of Silicon Carbide Ultraviolet Photodetector via<i> In Situ</i> Nitrogen Doping Open
High-performance ultraviolet photodetectors require high sensitivity, fast response, strong radiation resistance, and high on/off ratio. This study investigates the impact of in-situ nitrogen doping on the performance of Silicon Carbide ul…
View article: Capillary-Assisted Photopolymer Structural Weaving for Orbital Manufacturing (CAPSWOM)
Capillary-Assisted Photopolymer Structural Weaving for Orbital Manufacturing (CAPSWOM) Open
This whitepaper introduces CAPSWOM — Capillary-Assisted Photopolymer Structural Weaving for Orbital Manufacturing, a novel method for constructing ultra-lightweight, high-precision, large-scale structures directly in microgravity.…
View article: Combined experimental and theoretical insights into the solvent-dependent photochromic properties of nitrospiropyrans
Combined experimental and theoretical insights into the solvent-dependent photochromic properties of nitrospiropyrans Open
Spiropyrans exhibit reversible photochromism that strongly depends on solvent polarity; yet a quantitative understanding of this relationship remains incomplete. Here we combine detailed spectroscopic and kinetic experiments with ab initio…
View article: Formulation and evaluation of ulvan-functionalized cumin oil nanoemulsions for antioxidant, anti-photoaging, and anti-melanogenesis activities in skin cells
Formulation and evaluation of ulvan-functionalized cumin oil nanoemulsions for antioxidant, anti-photoaging, and anti-melanogenesis activities in skin cells Open
Growing interest in natural skincare solutions has spotlighted bioactive substances like ulvan and cumin essential oil, valued for their roles in combating oxidative stress and inflammation. In this study, cumin oil-based nanoemulsions wit…
View article: Synthesis and Characterization of Citrus Reticulata Capped Ag–ZnO Nanoparticles: Effects of Growth Temperature
Synthesis and Characterization of Citrus Reticulata Capped Ag–ZnO Nanoparticles: Effects of Growth Temperature Open
This study reports a facile green synthesis of silver‐doped zinc oxide nanoparticles (Ag–ZnO NPs) using Citrus reticulata peel extract as a capping agent. This method was used to synthesize Ag–ZnO NPs at different growth temperatures and i…
View article: Intelligent single-shot full-field characterization over femtosecond pulses
Intelligent single-shot full-field characterization over femtosecond pulses Open
Conventional approaches to femtosecond (fs) pulse characterization depend on nonlinearities without exception, thereby impeding their utilization in measuring weak fs pulses. Their reliance on iterative phase retrieval or spectrometer-base…
View article: Mapping the SO <sub>2</sub> Shoreline in Gas Giant Exoplanets
Mapping the SO <sub>2</sub> Shoreline in Gas Giant Exoplanets Open
JWST has revealed sulfur chemistry in giant exoplanet atmospheres, where molecules such as sulfur dioxide (SO 2 ) trace photochemistry, metallicity, and formation and migration. To ascertain the conditions that determine whether (or how mu…
View article: Molecular hydrogen in filaments at high Galactic latitudes
Molecular hydrogen in filaments at high Galactic latitudes Open
Context. Neutral atomic hydrogen (HI) absorption lines can be used to probe the cold neutral medium (CNM) at high Galactic latitudes. Cold HI with a significant optical depth from the GASKAP-HI survey is found to be located predominantly i…
View article: Quinoidal Nitrogen‐Bridged Terthiophene Acceptors Enabling Broadband Spectral Response Reaching 1.4 µm in SWIR Organic Photodetectors
Quinoidal Nitrogen‐Bridged Terthiophene Acceptors Enabling Broadband Spectral Response Reaching 1.4 µm in SWIR Organic Photodetectors Open
Organic photodetectors (OPDs) capable of detecting short‐wavelength infrared (SWIR) radiation beyond the silicon cutoff (≈1.1 µm) have attracted significant attention due to their potential applications, such as machine vision, remote sens…
View article: Capillary-Assisted Photopolymer Structural Weaving for Orbital Manufacturing (CAPSWOM)
Capillary-Assisted Photopolymer Structural Weaving for Orbital Manufacturing (CAPSWOM) Open
This whitepaper introduces CAPSWOM — Capillary-Assisted Photopolymer Structural Weaving for Orbital Manufacturing, a novel method for constructing ultra-lightweight, high-precision, large-scale structures directly in microgravity. The tech…
View article: High UV Sensitivity in Graphene-Silicon Schottky Photodiodes in Industry Standard Packaging
High UV Sensitivity in Graphene-Silicon Schottky Photodiodes in Industry Standard Packaging Open
Graphene is of great scientific and commercial interest due to its unique physical properties, including exceptionally high carrier mobility and light transparency over a wide wavelength range. Graphene forms a heterojunction with silicon,…
View article: Transcriptional benchmark dose modeling of ultraviolet radiation‐induced genomic activation in mouse skin
Transcriptional benchmark dose modeling of ultraviolet radiation‐induced genomic activation in mouse skin Open
The in vivo transcriptional response of mouse skin to ultraviolet radiation (UV‐R) exposure reveals key genomic alterations associated with UV‐R‐induced damage but it does not provide precise dose thresholds for these effects. These initia…
View article: Laser Ablation Sampling With Low‐Power Plasma: A LA‐MIP‐MS Instrument for Spaceflight
Laser Ablation Sampling With Low‐Power Plasma: A LA‐MIP‐MS Instrument for Spaceflight Open
Rationale Inductively coupled plasma (ICP) is a commonly used ion source for mass spectrometry‐based chemical analysis of a wide range of materials. Traditional ICP ion sources use high power (> 1000 W) and significant gas flow (> 10 L/min…
View article: Naive $T$-odd Drell-Yan angular coefficients as a probe of the dimension-8 SMEFT
Naive $T$-odd Drell-Yan angular coefficients as a probe of the dimension-8 SMEFT Open
We propose the ``naive" $T$-odd Collins-Soper moments in the Drell-Yan process as probes of previously unexplored directions in the Standard Model Effective Field Theory (SMEFT) parameter space. We show that the moments $A_6$ and $A_7$ in …
View article: Autonomous Surface Selection For Manipulator-Based UV Disinfection In Hospitals Using Foundation Models
Autonomous Surface Selection For Manipulator-Based UV Disinfection In Hospitals Using Foundation Models Open
Ultraviolet (UV) germicidal radiation is an established non-contact method for surface disinfection in medical environments. Traditional approaches require substantial human intervention to define disinfection areas, complicating automatio…
View article: <i>α</i> -MC: Self-consistent <i>α</i> -enhanced Stellar Population Models Covering a Wide Range of Age, Metallicity, and Wavelength
<i>α</i> -MC: Self-consistent <i>α</i> -enhanced Stellar Population Models Covering a Wide Range of Age, Metallicity, and Wavelength Open
We present new stellar population models, α -MC, self-consistently taking into account nonsolar [ α /Fe] abundances for both isochrones and stellar spectra. The α -MC models are based on α -enhanced MIST isochrones and C3K spectral librari…
View article: Probing High Reheating Temperatures by Direct Detection Experiments
Probing High Reheating Temperatures by Direct Detection Experiments Open
We argue that the benchmark freeze in dark matter (DM) scenario for direct detection experiments, in which a DM candidate interacts with the Standard Model (SM) through an ultralight dark photon, becomes sensitive to the visible sector reh…
View article: Autonomous Surface Selection For Manipulator-Based UV Disinfection In Hospitals Using Foundation Models
Autonomous Surface Selection For Manipulator-Based UV Disinfection In Hospitals Using Foundation Models Open
Ultraviolet (UV) germicidal radiation is an established non-contact method for surface disinfection in medical environments. Traditional approaches require substantial human intervention to define disinfection areas, complicating automatio…
View article: Probing High Reheating Temperatures by Direct Detection Experiments
Probing High Reheating Temperatures by Direct Detection Experiments Open
We argue that the benchmark freeze in dark matter (DM) scenario for direct detection experiments, in which a DM candidate interacts with the Standard Model (SM) through an ultralight dark photon, becomes sensitive to the visible sector reh…
View article: Photoemission electron microscopy for connectomics
Photoemission electron microscopy for connectomics Open
Photoemission electron microscopy (PEEM) offers a potential third modality for large-volume connectomics alongside transmission electron microscopy (TEM) and scanning electron microscopy (SEM). We image osmium stained, ultrathin brain sect…