Results 211 to 220 of about 555,829 (322)

Size Effect on Photothermal Heating Ability of Gold Bipyramids

open access: yesAdvanced Optical Materials, EarlyView.
Gold bipyramids with identical spectral characteristics exhibits opposite volume‐dependent photo‐thermal heating at single‐particle versus collective scales. The thermal energy can be used to generate mechanical work by powering Stirling engine. Abstract Gold nanoparticles (AuNPs) exhibit photothermal properties that are fundamental to biomedical and ...
Aadesh Mohan Naik   +7 more
wiley   +1 more source

A superfluid dark matter cosmic string wake. [PDF]

open access: yesEur Phys J C Part Fields
Favero A, Brandenberger R.
europepmc   +1 more source

Evolution of Collective, Radiative Plasmon Coupling in Confined, Soft Colloidal Films

open access: yesAdvanced Optical Materials, EarlyView.
Plasmon resonance coupling is continuously monitored during the uniaxial manipulation of a 2‐dimensional soft colloidal film containing hexagonally arranged spherical gold nanocrystals. This is realized by the in situ spectroscopic investigation of a monolayer of plasmonic core‐shell microgels confined at the air/water interface that is compressed in a
Déborah Feller   +7 more
wiley   +1 more source

Cosmological constraints on neutrino plus axion hot dark matter [PDF]

open access: green, 2007
Steen Hannestad   +3 more
openalex   +1 more source

From Invisible to Visible: Pressure‐Responsive Photonic Crystals for Advanced Information Encryption

open access: yesAdvanced Optical Materials, EarlyView.
Multilayered composite materials are fabricated based on chiral nematic cellulose nanocrystals incorporated in a shape‐memory polymer matrix. Upon hot‐pressing, they consistently present initially hidden patterns/information with structural colors distinct from the background over multiple pressing‐recovery cycles.
Zongzhe Li   +3 more
wiley   +1 more source

Below 1% Reflectance for Black GaAs Surface Prepared by Facile Two‐Step Wet Chemical Treatment: Hydrogen Peroxide and Water

open access: yesAdvanced Photonics Research, EarlyView.
Black GaAs surface which decreases light reflectivity forms in surprising way when GaAs is kept first in hot hydrogen peroxide solution and then in hot‐water solution. To increase performance of many photonic devices (e.g., solar cell, light emitting diode (LED), photodetector), it is essential to decrease light reflection at device interfaces ...
Zahra Jahanshah Rad   +27 more
wiley   +1 more source

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