Results 271 to 280 of about 59,263 (337)

Enhanced Two‐Photon Excited Emission of Quantum Emitters by Colloidal Plasmonic Metasurfaces

open access: yesAdvanced Photonics Research, Volume 6, Issue 7, July 2025.
Colloidal plasmonic metasurfaces presenting a completely exposed optical cavity are fabricated via templated self‐assembling silver nanoparticles into squared arrays on top of a thin film of CdSe/ZnS quantum dots. The resulting structure promotes the enhancement of the two‐photon absorption and emission processes of the quantum emitter by exploiting ...
Ylli Conti   +4 more
wiley   +1 more source

Absorption and amplification singularities in metasurface etalons with gain. [PDF]

open access: yesNanophotonics
de Gaay Fortman N   +3 more
europepmc   +1 more source

Single‐Pixel Infrared Miniaturized Spectrometer Enabled by Ultra‐Broadband Reconfigurable Photodetection

open access: yesAdvanced Science, Volume 12, Issue 25, July 3, 2025.
A near‐infrared tunable micro‐spectrometer is achieved by integrating a PbS photodetection unit and a light modulation unit based on liquid crystal tuned optical resonances, demonstrating a wavelength tuning range exceeding 850 nm. This micro‐spectrometer shows high fidelity in spectral reconstruction and is also successfully applied to plastic sorting,
Wenyue Liang   +11 more
wiley   +1 more source

Maximized Enhancement of Polarized and Unpolarized Emissions via Critical Coupling in Brillouin Zone Folding Metasurfaces

open access: yesLaser &Photonics Reviews, Volume 19, Issue 13, July 8, 2025.
Maximized emission enhancement is experimentally achieved using critical coupling in Brillouin zone folding metasurfaces. Maximized enhancements of polarized and unpolarized emissions from quantum dot‐coated dielectric metasurfaces are demonstrated in the normal direction.
Jungho Han   +4 more
wiley   +1 more source

Physiology and metabolism of eukaryotic microalgae involved in aquatic photosymbioses

open access: yesNew Phytologist, Volume 247, Issue 1, Page 71-89, July 2025.
Summary Symbiosis between eukaryotic microalgae and heterotrophic hosts is a widespread, phylogenetically convergent, and ecologically important phenomenon in aquatic ecosystems. Partners include taxonomically diverse microalgae interacting with multicellular or unicellular hosts in marine or freshwater environments.
Daniel P. Yee   +6 more
wiley   +1 more source

Tunable quantum light by modulated free electrons. [PDF]

open access: yesNanophotonics
Di Giulio V, Haindl R, Ropers C.
europepmc   +1 more source

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