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Nanomaterials Mar 26, 2021

Plasmon-coupled gold nanoparticles useful for thermal history sensing

Researchers have demonstrated that stretching shape-memory polymers embedded with clusters of gold nanoparticles alters their plasmon-coupling, giving rise to desirable optical properties. One potential application for the ...

Materials Science Mar 24, 2021

Understanding the structural and chemical heterogeneities of surface species at the single-bond limit

Advances in tip-based microscopy in materials science have allowed imaging at angstrom-scale resolution, although the technique does not provide clear characterization of the structural and chemical heterogeneities of surface ...

Nanophysics Mar 22, 2021

Plasmonic nanoreactors regulate selective oxidation via energetic electrons and nanoconfined thermal fields

When optimizing catalysis in the lab, product selectivity and conversion efficiency are primary goals for materials scientists. Efficiency and selectivity are often mutually antagonistic, where high selectivity is accompanied ...

Nanophysics Mar 19, 2021

Plasmonic tweezers: For nanoscale optical trapping and beyond

Optical tweezers and associated manipulation tools in the far field have had a major impact on scientific and engineering research by offering precise manipulation of small objects. More recently, near-field manipulation ...

Nanomaterials Mar 18, 2021

Researchers demonstrate practical metal nanostructures

Researchers at the University of Ottawa have debunked the decade-old myth of metals being useless in photonics—the science and technology of light—with their findings, recently published in Nature Communications, expected ...

Nanophysics Mar 18, 2021

Teamwork makes light shine ever brighter

If you're looking for one technique to maximize photon output from plasmons, stop. It takes two to wrangle.

Nanophysics Mar 16, 2021

Project investigates remote control of enzymes using light

The activity of enzymes in industrial processes, laboratories, and living beings can be remotely controlled using light. This requires their immobilization on the surface of nanoparticles and irradiation with a laser. Near-infrared ...

Nanophysics Mar 16, 2021

Acoustic graphene plasmons study paves way for optoelectronic applications

KAIST researchers and their collaborators at home and abroad have successfully demonstrated a new methodology for direct near-field optical imaging of acoustic graphene plasmon fields. This strategy will provide a breakthrough ...

Optics & Photonics Mar 9, 2021

Microscope allows ultrafast nanoscale manipulation while tracking energy dynamics

Since the early 2010s, ultrafast probing of materials at atomic-level resolution has been enabled by terahertz scanning tunneling microscopes (THz-STM). But these devices can't detect the dissipation of energy that happens ...

Optics & Photonics Feb 11, 2021

Capturing free-space optical light for high-speed Wi-Fi

Visible and infrared light can carry more data than radio waves, but has always been confined to a hard-wired, fiber-optic cable. Working with Facebook's Connectivity Lab, a Duke research team has now made a major advance ...

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