Results 211 to 220 of about 169,130 (317)

Dual‐Modality Detection of Intracellular Nanoparticles via Smart Polymer‐Enhanced SERS and Hyperspectral Microscopy Detection

open access: yesAdvanced Optical Materials, EarlyView.
Dual‐imaging strategy for PAP‐functionalized gold nanoparticles (PAP@Gold NPs) in HeLa cells. Fast screening is achieved via hyperspectral microscopy based on light reflection to track nanoparticle localization. Accurate detection is performed through SERS microscopy, leveraging the plasmonic enhancement of the PAP polymer signal for precise location ...
Marco Giustra   +10 more
wiley   +1 more source

From Two‐Photon Grayscale Lithography to Scalable Replication: Enabling Complex Aspherical Micro‐Optics for Mass Production

open access: yesAdvanced Optical Materials, EarlyView.
This study presents the replication of micro‐optics fabricated by two‐photon polymerization grayscale lithography via electroplating and injection molding, enabling mass production without loss of precision. A diffractive aspherical micro‐lens array is fabricated and replicated, and its performance is compared before and after replication ...
Stefan Wagner   +7 more
wiley   +1 more source

Interparticle Distance Controls Ultrafast Photodynamics in Crystalline Gold Superstructures

open access: yesAdvanced Optical Materials, EarlyView.
Densely packed, crystalline gold superparticles with tunable interparticle distances are employed as a model system to study the effects of cross‐talk between nanoparticles on the ultrafast carrier dynamics via a combination of advanced experimental techniques and numerical simulations.
Pietro Castronovo   +12 more
wiley   +1 more source

State‐of‐the‐Art Solar Blind and X‐Ray Photodetectors Based on Gallium Oxide

open access: yesAdvanced Photonics Research, EarlyView.
State‐of‐the‐art Ga2O3‐based solar‐blind UV and X‐ray photodetectors (PDs) are reviewed. Benchmark plots compare responsivity versus specific detectivity for UV PDs (photoconductors, photovoltaic, Schottky, heterojunction, avalanche, and phototransistor types) and sensitivity versus response time for X‐ray detectors based on Ga2O3 bulk crystals, thin ...
Catherine Langpoklakpam   +7 more
wiley   +1 more source

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