In this Letter, we report for the first time, to the best of our knowledge, on an emission at 8 μm from Tb-doped GaGeSbSe chalcogenide fibers with doping levels at 1000 ppm and 500 ppm. These fibers were drawn following conventional melt-quenching methods and pumped at 2.05 μm using a Tm: YAG laser. The spectroscopic properties of the emitting F7 manifold are investigated to rule out any parasitic signal mimicking the real Tb 8 μm emission. Time-resolved spectroscopic experiments are presented to build a comprehensive study of this 8 μm fluorescence recorded with a clear signal-to-noise ratio.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OL.43.001211 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Study of Structural, Optical and Photoluminescence Properties of Pr Ions Doped Sodium Bismuth Borosilicate Glasses.
J Fluoresc
January 2025
Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Andhra Pradesh, 522510, India.
In this work, the conventional melt quenching approach is used to synthesize the Pr doped NaF-BiO-BO-SiO (NBBS) glasses. The influence of Pr ions on their spectroscopic and structural characteristics in glass network is investigated. The amorphous nature of the samples has been amply verified by X-ray diffraction patterns.
View Article and Find Full Text PDFTriple circularly polarized luminescence of phenylalanine-based supramolecular gels regulated by kinetic and thermodynamic assembly pathways.
Chem Commun (Camb)
January 2025
State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Key Laboratory of Shandong Provincial Universities for Advanced Fibers and Composites, Qingdao University, Qingdao, 266071, P. R. China.
A single phenylalanine-based gelator can self-assemble into various chiral nanostructures with triple circularly polarized luminescence (CPL). Its supramolecular assembly and CPL emission are found to be dependent on the kinetic and thermodynamic pathways. This work provides new insight into the regulation of CPL-active functional materials.
View Article and Find Full Text PDFDynamics of Pyrene Excimer in a Cholesteryl-based Supramolecular Host Matrix.
Chemphyschem
January 2025
IISER Bhopal: Indian Institute of Science Education and Research Bhopal, Department of Chemistry, Bhopal Bypass Road, Bhauri, 462066, Bhopal, INDIA.
Aggregation-caused quenching (ACQ) reduces luminescence and compromises brightness in solid-state displays, necessitating strategies to mitigate its effects for enhanced performance. This study presents cost-effective method to mitigate ACQ of pyrene by co-assembling polycyclic aromatic hydrocarbons within low molecular weight gelator. Synthesized from readily available materials-cholesteryl chloroformate and pentaerythritol-in one-step reaction, gelator incorporates four cholesteryl units, reported to promote robust supramolecular gels in various solvents.
View Article and Find Full Text PDFDisturbance-Triggered Instant Crystallization Activating Bioinspired Emissive Gels.
Angew Chem Int Ed Engl
January 2025
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Key Laboratory of Advanced Marine Materials, 1219 Zhongguan West Road, 315201, Ningbo, CHINA.
Many marine organisms feature sensitive sensory-perceptual systems to sense the surrounding environment and respond to disturbance with intense bioluminescence. However, it remains a great challenge to develop artificial materials that can sense external disturbance and simultaneously activate intense luminescence, although such materials are attractive for visual sensing and intelligent displays. Herein, we present a new class of bioinspired smart gels constructed by integrating hydrophilic polymeric networks, metastable supersaturated salt and fluorophores containing heterogenic atoms.
View Article and Find Full Text PDFElucidation on the Interaction Between Transferrin and Tetrachlorobisphenol A Based on Multispectroscopic Analysis, Molecular Docking Technique, and Conformational Studies.
Luminescence
January 2025
School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, China.
Tetrachlorobisphenol A (TCBPA) is a kind of fire retardant extensively used in our life, but it can accumulate in organisms and potentially have toxic effects. Transferrin (TF) is a glycoprotein predominantly present in the blood plasma, serving as an essential mediator for the transportation of iron and other small molecules. In our study, various techniques including multi-spectroscopic and molecular docking were employed to examine the interaction between TCBPA and TF.
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!