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Search results for plasmonic

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 ...

Bio & Medicine Feb 8, 2021

Wearable plasmonic-metasurface sensor for universal molecular fingerprint detection on biointerfaces

Wearable sensing technology is an essential link in personalized medicine, where researchers must track multiple analytes inside the body simultaneously, to obtain a complete picture of human health. In a new report on Science ...

Nanophysics Feb 8, 2021

Researchers create low-cost, AI-powered device to measure optical spectra

A team of researchers at the UCLA Samueli School of Engineering has demonstrated a new approach to an old problem: measuring spectra of light, also known as spectroscopy. By leveraging scalable, cost-effective nano-fabrication ...

Nanophysics Jan 20, 2021

Tiny structures generate powerful beams for enhanced optical imaging

Even the smallest molecule can tell a big story. For instance, observing a single molecule can throw light on underlying biological processes in the human body. In fact, molecular imaging procedures—which are noninvasive ...

Materials Science Jan 8, 2021

Researchers develop ultrahigh-performance plasmonic metal-oxide materials

In a study published in Advanced Materials, researchers from Hefei National Laboratory for Âé¶¹ÒùÔºical Sciences at the Microscale, the University of Science and Technology of China of the Chinese Academy of Sciences, using an ...

Optics & Photonics Dec 23, 2020

Experiment takes 'snapshots' of light, stops light, uses light to change properties of matter

Light travels at a speed of about 300,000,000 meters per second as light particles, photons, or equivalently as electromagnetic field waves. Experiments led by Hrvoje Petek, an R.K. Mellon professor in the Department of Âé¶¹ÒùÔºics ...

Nanomaterials Dec 22, 2020

'Soft' nanoparticles give plasmons new potential

Bigger is not always better, but here's something that starts small and gets better as it gets bigger.

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