We have measured the intensity profile and transmission of x rays focused by a series of biconcave spherical unit lenses fabricated from beryllium. The use of beryllium extends the range of operation of compound refractive lenses, improving transmission, aperture size, and gain. The compound refractive lens was composed of 160 biconcave unit lenses, each with a radius of curvature of 1.9 mm. Two-dimensional focusing with a gain of 1.5 was obtained at 6.5 keV with a focal length of 93 cm. The effective aperture of the compound refractive lens was measured as 600 mum , with 9% peak transmission.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/ol.27.000778 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Frequency locked whispering evanescent resonator (FLOWER) for biochemical sensing applications.
Nat Protoc
January 2025
Wyant College of Optical Sciences, The University of Arizona, Tucson, AZ, USA.
Sensitive, rapid and label-free biochemical sensors are needed for many applications. In this protocol, we describe biochemical detection using FLOWER (frequency locked optical whispering evanescent resonator)-a technique that we have used to detect single protein molecules in aqueous solution as well as exosomes, ribosomes and low part-per-trillion concentrations of volatile organic compounds. Whispering gallery mode microtoroid resonators confine light for extended time periods (hundreds of nanoseconds).
View Article and Find Full Text PDFFull analysis for the optical properties of the CsXInBr (X = Cu or Ag) double perovskites using both GW and Bethe-Salpeter approaches.
J Mol Model
January 2025
Department of Physics, Faculty of Sciences, Shahrekord University, P.O. Box 115, Shahrekord, Iran.
Article Synopsis
- Researchers are exploring renewable energy sources like solar cell technology to replace fossil fuels and reduce environmental impacts, focusing on lead-free halide perovskite compounds CsXInBr (where X is Cu or Ag).
- The study found that CsAgInBr and CsCuInBr compounds exhibit desirable properties for solar applications, with calculated optical gaps and high absorption coefficients, particularly noting CsCuInBr's effectiveness in absorbing sunlight due to its high infrared absorption.
- The analysis utilized the Abinit computational package and density functional theory (DFT) to evaluate the electronic, structural, and optical characteristics of these compounds, framing potential applications in solar cells and detectors.
Cyclic Voltarefractometry of Single TiO Nanoparticles in Large Ensembles in Nonaqueous Electrolyte.
Anal Chem
January 2025
Nanobiotechnology Department of the Institute of Biotechnology, Brandenburg University of Technology Cottbus-Senftenberg, Universitaetsplatz 1, Senftenberg 01968, Brandenburg, Germany.
Single nanoparticle (NP) cyclic voltarefractometry (CVR), realized as wide-field surface plasmon resonance microscopy (SPRM) in combination with potential cycling, has been proposed and applied to the in situ study of TiO NPs. Electrochemical activity of TiO is mainly observed outside the electrochemical stability window of water. Therefore, the response of individual anatase (a-TiO) and rutile (r-TiO) NPs adsorbed on a gold layer was studied in 0.
View Article and Find Full Text PDFVisible-Light-Fueled Polymerizations for 3D Printing.
Acc Chem Res
January 2025
Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Austin, Texas 78712, United States.
ConspectusLight-driven polymerizations and their application in 3D printing have revolutionized manufacturing across diverse sectors, from healthcare to fine arts. Despite the popularized notion that with 3D printing "imagination is the only limit", we and others in the scientific community have identified fundamental hurdles that restrict our capabilities in this space. Herein, we describe the group's efforts in developing photochemical systems that respond to nontraditional colors of light to elicit the rapid, spatiotemporally controlled formation of plastics.
View Article and Find Full Text PDFUse of compound specific isotope analysis approach to monitor the aging process of Italian balsamic vinegars.
Curr Res Food Sci
December 2024
Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, via G. Campi, 103, 41125 Modena, Italy.
Stable isotope analysis has become a valuable tool for studying food chain processes and verifying the authenticity and geographical origin of typical products. The analysis is particularly important for those foods with geographical indications, such as Aceto Balsamico Tradizionale di Modena labelled with the protected designation of origin mark (ABTM PDO) and Aceto Balsamico di Modena with the protected geographical indication (ABM PGI). Understanding how the aging process affects the isotopic composition of specific compounds in ABTM is important for distinguishing between traditional and non-traditional products, as well as for verifying their authenticity.
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!