Results 281 to 290 of about 25,185,295 (354)

Understanding and Circumventing Failure Mechanisms in Chalcogenide Optical Phase Change Material Ge2Sb2Se4Te

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Chalcogenide optical PCMs have gathered interest for their potential in compact, non‐volatile optics and photonics. Free‐space PCM metasurfaces require new considerations from phase change memory that need to be addressed for reliable scale‐up. Several failure mechanisms pertaining to free‐space PCM devices and layout methods are isolated to prevent ...
Cosmin Constantin Popescu   +19 more
wiley   +1 more source

Toward Enhancing Chiro‐Optical and Magneto‐Optical Properties of Magnetic Nanocrystals by Surface Plasmons

open access: yesAdvanced Optical Materials, EarlyView.
Here, recent progress is highlighted in colloidal magnetoplasmonic hybrid nanomaterials, with a focus on chiral plasmonics. Metal nanocrystals with intrinsic chiroptical features can lead to a combination of chiral plasmonics and magneto‐optics effects when interacting with the magnetic counterpart, offering a foundation for systematically designing ...
Miguel Comesaña‐Hermo   +4 more
wiley   +1 more source

The Role of Optical Centers in Neodymium‐Doped Calcium Fluoride: Optical Tagging and Nanothermometry in the Second Biological Window

open access: yesAdvanced Optical Materials, EarlyView.
Tuning excitation by only 6 nm unveils three distinct optical centres in CaF2:Nd3⁺,Y3⁺, each with unique spectral fingerprints. Some exhibit properties ideal for precise nanoscale temperature sensing. Abstract Nd3+ has been proposed for nanothermometry in biological media, as both its emission and excitation wavelengths fall within the regions of low ...
Pablo Camarero   +5 more
wiley   +1 more source

Intracellular Monitoring of Luminescent Ag2S Nanoparticles in Fibroblasts

open access: yesAdvanced Optical Materials, EarlyView.
This study investigates the long‐term luminescence behavior of Ag2S quantum dots (AS QDs) with three surface ligands (DTDTPA, 11MUA, PEG) in fibroblasts over 9 days. AS‐PEG showed stable uptake and enhanced NIR‐II emission, while others decreased due to oxidative stress.
Mahshid Hashemkhani   +6 more
wiley   +1 more source

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