Results 141 to 150 of about 368,263 (301)
Suppressed Stokes Shifts and Hot Luminescence from Quantum Dots within Plasmonic Nanocavities
Advanced Optical Materials, EarlyView.This study demonstrates the suppression of the Stokes shift in lead sulfide quantum dots through integration with plasmonic nanocavities. By enhancing spontaneous emission and altering exciton relaxation pathways, this approach enables direct band‐edge emission with improved radiative efficiency, highlighting the powerful role of nanophotonic ...
Junyang Huang +12 more
wiley +1 more source
The Relative Lyapunov Indicators: Theory and Application to Dynamical Astronomy [PDF]
arXiv, 2015 A recently introduced chaos detection method, the Relative Lyapunov Indicator (RLI) is investigated in the cases of symplectic mappings and continuous Hamiltonian systems. It is shown that the RLI is an efficient numerical tool in determining the true nature of individual orbits, and in separating ordered and chaotic regions of the phase space of ...
arxiv
Mirror Coating Research and Developments for Current and Future Gravitational‐Wave Detectors
Advanced Photonics Research, EarlyView.In gravitational‐wave detectors, research on mirror coatings is needed to mitigate thermal noise and enhance the detectors’ sensitivity. In this review, an overview of the latest worldwide research activities on coatings with low mechanical loss and low optical absorption is presented, including new coating designs such as multimaterial coatings and ...
Alex Amato +2 more
wiley +1 more source
Structurally Defined Water‐Soluble Metallofullerene Derivatives towards Biomedical Applications
Angewandte Chemie International Edition, Volume 62, Issue 3, January 16, 2023., 2023 A modular metallobuckytrio (MBT) platform provides a family of structurally defined, water‐soluble metallofullerene derivatives that can safely carry rare‐earth elements in tailorable molecules, showing promise in biomedicines including MRI contrast agents and photosensitizers. Abstract Endohedral metallofullerenes (EMFs) are excellent carriers of rare‐
Yanbang Li +15 more
wiley +1 more source
Signals embedded in the radial velocity noise. Periodic variations in the τ Ceti velocities
, 2013 28
Tuomi, M., Jenkins, J.S.
openaire +2 more sources
Effect of Core Geometry on Frequency Correlations and Channel Capacity of a Multimode Optical Fiber
Advanced Photonics Research, EarlyView.Structured wavefronts focused at the output of multimode fibers reveal a distinct spatial dependence of frequency correlation bandwidth between circular and rectangular cores. Unlike conventional circular‐core fibers, rectangular‐core fibers maintain uniform bandwidth across all transverse locations, enabling over a 20% increase in channel capacity for
Henry C. Hammer, Ravitej Uppu
wiley +1 more source
Supervised Radio Frequency Interference Detection with SNNs [PDF]
Radio Frequency Interference (RFI) poses a significant challenge in radio astronomy, arising from terrestrial and celestial sources, disrupting observations conducted by radio telescopes. Addressing RFI involves intricate heuristic algorithms, manual examination, and, increasingly, machine learning methods.
arxiv +1 more source
Photochromic Organic–Inorganic Material for Focusable Adaptive Lenses Fabrication
Advanced Photonics Research, EarlyView.This study investigates a zirconia‐based hybrid organic–inorganic material incorporating dithienylethene molecules for adaptive optics. It offers excellent photochromic properties, thermal stability, and adjustable thickness, enabling effective refractive index modulation.
Giorgia Franchin +6 more
wiley +1 more source
A comparison of light and velocity variations in Semiregular variables [PDF]
Astronomy & Astrophysics (2000) 361, 167-174, 2000 NIR velocity variations are compared with simultaneous visual light curves for a sample of late-type semiregular variables (SRV). Precise radial velocity measurements are also presented for the SRV V450 Aql. Our aim is to investigate the nature of the irregular light changes found in these variables.
arxiv