Results 101 to 110 of about 18,567 (217)

Thermoplasmonic‐Controlled Optical Filters Based on the Combination of Chiral Liquid Crystals and Metasurfaces

open access: yesMacromolecular Rapid Communications, EarlyView.
A broadband cholesteric liquid crystal (CLC) combined with a bottom‐up metasurface absorber enables the realisation of thermoplasmonic‐controlled optical filters. These filters combine a CLC reflector for visible light with a metasurface absorber operating in the near‐infrared (NIR) range.
Federica Zaccagnini   +6 more
wiley   +1 more source

Radio-frequency polarimetry [PDF]

open access: yesAIP Conference Proceedings, 1998
A method of fast non-destructive absolute spin monitoring for a bunched beam in an accelerator ring based on use of the RF techniques is considered. The coherent spin of the beam is driven by RF magnets in the spin echo regime. A passive superconducting resonator is proposed to respond to the flipping spin.
openaire   +4 more sources

Self‐Assembly of Bent‐Core Nematics in Nanopores

open access: yesSmall, EarlyView.
Bent‐core nematic liquid crystals like CB7CB exhibit tunable molecular organization and optical responses when confined in cylindrical nanochannels of anodic aluminum oxide and silica. The study investigates how confinement–from weak to strong–modulates phase behavior, revealing heliconical structures, paranematic states, and birefringence patterns ...
Andriy Z. Maksym   +8 more
wiley   +1 more source

Optical phantoms for biomedical polarimetry: a review

open access: yesJournal of Biomedical Optics, 2019
. Calibration, quantification, and standardization of the polarimetric instrumentation, as well as interpretation and understanding of the obtained data, require the development and use of well-calibrated phantoms and standards. We reviewed the status of
J. Chue-Sang   +6 more
semanticscholar   +1 more source

Nanoscale Analysis beyond Imaging by Atomic Force Microscopy: Molecular Perspectives on Oncology and Neurodegeneration

open access: yesSmall Science, EarlyView.
Cancer and neurodegeneration share interconnected nanosized molecular pathways. Novel nanobiomedicine approaches promise targeted biomarkers and therapies. Atomic force microscopy (AFM) is invaluable to characterize nanosized biomolecular processes beyond imaging.
Carlos Marcuello   +5 more
wiley   +1 more source

Properties, mechanisms, and perspectives of ultrafast laser modifications in silicate glass volume

open access: yesInternational Journal of Applied Glass Science, Volume 17, Issue 1, January 2026.
Abstract Ultrafast laser irradiation of glass enables highly localized structural transformations within the material's bulk, unlocking diverse applications in photonics, data storage, and microfabrication. Here, we provide a concise yet comprehensive overview of the main types of femtosecond laser‐induced modifications in silica‐based glasses (Types I,
Nadezhda Shchedrina   +3 more
wiley   +1 more source

Single-crystal Sapphire Based Optical Polarimetric Sensor for High Temperature Measurement

open access: yesSensors, 2006
Optical sensors have been investigated and widely deployed in industrial andscientific measurement and control processes, mainly due to their accuracy, high sensitivityand immunity to electromagnetic interference and other unique characteristics.
Anbo Wang   +4 more
doaj   +1 more source

Effects on LuxR‐Regulated Bioluminescence of Cyclodextrin‐Acyl‐L‐Homoserine Lactone Hybrids

open access: yesChemBioChem, Volume 26, Issue 19, October 3, 2025.
Cyclodextrin‐N‐acyl‐L‐Homoserine‐Lactone conjugates are synthetized, purified and fully characterized. The study of modulation of LuxR‐regulated bioluminescence production has demonstrated that one of the compounds exhibits not only the capacity to induce bioluminescence with an EC50 value of 64 µM, but also the ability to reduce bioluminescence with ...
Nicolas Tinet   +5 more
wiley   +1 more source

Combining Machine Learning and Compact Polarimetry for Estimating Soil Moisture from C-Band SAR Data

open access: yesRemote Sensing, 2019
This research aimed at exploiting the joint use of machine learning and polarimetry for improving the retrieval of surface soil moisture content (SMC) from synthetic aperture radar (SAR) acquisitions at C-band. The study was conducted on two agricultural
E. Santi   +3 more
semanticscholar   +1 more source

Helical Photonic Metamaterials for Encrypted Chiral Holograms

open access: yesAdvanced Science, Volume 12, Issue 38, October 13, 2025.
This article explores the untapped potential of 3D‐printed helical structures as chiral metamaterials and metaholograms by uncovering how specific geometric parameters govern their chiroptical behavior. Combining terahertz experiments and simulations, it reveals how tunable, stretchable helices enable broadband ellipticity and encrypted QR codes ...
Wonjin Choi   +6 more
wiley   +1 more source

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