Results 171 to 180 of about 740,269 (354)

Competitive Bidirectional Response in Bi‐Polymeric Mechanochromic Cantilevers Toward Color Imaging‐Based VOC Discrimination

open access: yesAdvanced Optical Materials, EarlyView.
In bi‐polymeric mechanochromic cantilevers composed of polydimethylsiloxane (PDMS) and off‐stoichiometry thiol‐ene‐epoxy (OSTE+), differential swelling between the two polymers in response to VOC exposure induces a competitive bidirectional bending and corresponding color changes, with three characteristic response modes related to the Hansen ...
Ferran Pujol‐Vila   +2 more
wiley   +1 more source

Deep Seek to the Excited States: A Thermally‐Activated Jahn–Teller Effect Achieves Superior Sensitivity for Thermometry at Cryogenic Temperature

open access: yesAdvanced Optical Materials, EarlyView.
A Sb3+‐activated bismuth‐based halide single crystal shifts the onset temperature by ≈200 K. The confluence of the spin‐orbit interaction and the dynamic Jahn–Teller effect is responsible for maximizing the opposite emission changes at different temperatures. A high relative sensitivity (Sr) value of 18.9 % K−1 is obtained at 77 K.
Weihao Wang   +6 more
wiley   +1 more source

First Tellurite Composite Fiber with NIR‐Driven Green Persistent Luminescence

open access: yesAdvanced Optical Materials, EarlyView.
The first composite fiber based on SrAl2O4:Eu2+, Dy3+ PeL phosphors embedded in Yb3+/Tm3+ co‐doped tellurite glass is developed. The fiber exhibits green afterglow driven by 980 nm laser injection, suggesting that the PeL phosphors survive the fabrication process and the blue upconversion from the Yb3+/Tm3+ co‐doped glass matrix is strong enough to ...
Evellyn Santos Magalhães   +9 more
wiley   +1 more source

Complex Structured Light Generation Using Printed Liquid Crystal Droplets

open access: yesAdvanced Optical Materials, EarlyView.
Inkjet‐printed liquid crystal droplets generate structured light beams with spatially varying polarization and phase. These include full Poincaré beam, vortex beam carrying orbital angular momentum, and beam with polarization singularities, offering a simple approach for compact structured light generation in optical manipulation, imaging, and ...
Xuke Qiu   +12 more
wiley   +1 more source

Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems

open access: yesAdvanced Optical Materials, EarlyView.
The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley   +1 more source

Author Correction: Metabolic modeling reveals a multi-level deregulation of host-microbiome metabolic networks in IBD. [PDF]

open access: yesNat Commun
Taubenheim J   +8 more
europepmc   +1 more source

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