Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Efficient outcoupling of surface-plasma waves to radiation modes by use of dielectric diffraction gratings on a flat metallic surface is discussed. The dielectric gratings, which have a surface-relief structure with only several tens of nanometers in peak-to-trough height on a flat metal surface, can efficiently extract radiation modes propagating in free space from the surface-plasmon modes. An outcoupling efficiency of 50% is estimated with the rigorous coupled-wave diffraction theory, and it is confirmed by the experiment.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/ol.28.001870 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Feature-driven whole-tissue imaging with subcellular resolution.
Cell Rep Methods
August 2025
Lyda Hill Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Cecil H. and Ida Green Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. Electronic address:
Existing microscopy approaches are often unable to identify and contextualize rare but biologically meaningful events due to limitations associated with simultaneously achieving both high-resolution imaging and a cm-scale field of view. Here, we present multiscale cleared tissue axially swept light-sheet microscopy (MCT-ASLM), a platform combining cm-scale imaging with targeted high-resolution interrogation of intact tissues in human-guided or autonomous modes. Capable of capturing fields of view up to 21 mm at micron-scale resolution, MCT-ASLM can seamlessly transition to a targeted imaging mode with an isotropic resolution that approaches ∼300 nm.
View Article and Find Full Text PDFChanges to the configuration of angiography equipment to reduce exposure to ionizing radiation in FGI procedures.
Appl Radiat Isot
September 2025
Departamento de Física da Universidade Federal de Sergipe (DFI - UFS), Brazil; Programa de Pós-Graduação em Física, Universidade Federal de Sergipe (PPGFI - UFS), Brazil.
Angiography systems offer three dose rate modes (low, normal, and high) for performing fluoroscopy-guided interventional (FGI) procedures, with each mode corresponding to a specific set of parameters. Although the choice of mode should depend on the patient's biotype, such systems are typically shipped from the factory configured to start examinations in normal mode as the default. To reduce both the need for operator intervention during FGI procedures and the exposure of patients to ionizing radiation, we tested a change to the internal setup of an angiography machine in this study, in which the low-dose-rate mode was automatically selected as the default prior to starting a procedure.
View Article and Find Full Text PDFEffect of different light-curing modes and curing times on degree of conversion and microhardness of three different bulk-fill composites: an in vitro study.
Clin Oral Investig
September 2025
Department of Mechanical Engineering, Zakir Husain College of Engineering and Technology, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
Objectives: This in vitro study aims to compare the effect of different light curing modes and curing times on the degree of conversion (DC) and microhardness (MH) of three different bulk fill composites at two different depths.
Materials And Methods: A total of 224 cylindrical specimens (4 mm height, 6 mm diameter) were prepared using four composites: SDR Plus, Ever X Posterior (EXP), Beautifil Bulk Restorative (BBR), and Tetric N Ceram (TNC). Each material group (n = 56) was subdivided into four curing subgroups based on light-curing mode (Low Power or High Power) and exposure time (20-30 s).
Autophagy-dependent sensitization effects of PARP inhibitors on recurrent nasopharyngeal carcinoma treated with carbon ion and photon irradiation.
Acta Biochim Biophys Sin (Shanghai)
September 2025
Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Fudan University Cancer Hospital, Shanghai 201315, China.
Tumor radioresistance and severe toxicity make reirradiation for recurrent nasopharyngeal carcinoma (NPC) a significant clinical challenge. This study aims to investigate the ability of the poly(ADP-ribose) polymerase (PARP) inhibitor olaparib to sensitize recurrent NPC cells irradiated with photon or carbon ion (C-ion), and to explore the underlying mechanism of the synergistic promotion of cell death by olaparib and ionizing radiation. The results show that olaparib has significant X-ray and C-ion radiosensitization effects on recurrent NPC cells and the associated HK-RR photon-resistant model.
View Article and Find Full Text PDFRapid G4 Ligand Screening Through Spectral Changes Using HT-SRCD with Minimal Material.
Molecules
August 2025
Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK.
The development of molecules that interact with G-quadruplex (G4) sequences requires effective evaluation methods. Several techniques are currently available, including nuclear magnetic resonance (NMR) spectroscopy and X-ray crystallography, surface plasmon resonance (SPR), isothermal titration calorimetry (ITC) and mass spectrometry (MS), fluorescence using FRET-melting, G4-fluorescent intercalator displacement assay (G4-FID) and affinity chromatography. Among these, CD spectroscopy is gaining prominence due to its lower material requirements, faster experimentation and quicker data processing.
View Article and Find Full Text PDF