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Search results for plasmon

Optics & Photonics Mar 13, 2020

Silicon-graphene hybrid plasmonic waveguide photodetectors beyond 1.55 μm

Silicon photonics are known as a key technology for modern optical communications at the near infrared wavelength-band, i.e., 1.31/1.55 μm. Currently silicon photonics researchers have attempted to extend the technology ...

Optics & Photonics Mar 11, 2020

MEMS technology for fabricating plasmonic near-infrared spectrometers

Near-infrared spectroscopy provides absorption spectrum unique to substances so that discrimination of gas species becomes possible. Miniaturization of spectrometers is thus required to realize compact gas sensors for monitoring ...

Bio & Medicine Mar 5, 2020

Synthetic synapses get more like a real brain

The human brain, fed on just the calorie input of a modest diet, easily outperforms state-of-the-art supercomputers powered by full-scale station energy inputs. The difference stems from the multiple states of brain processes ...

Nanophysics Mar 4, 2020

Expanding the plasmonic painter's palette

By blending paints in their palette, artists can create a broad spectrum of colors with subtly different hues. However, scientists who wish to create a similar range of structural colors, like those found on butterfly wings, ...

Nanophysics Feb 26, 2020

Light-shrinking device enables detection of ultra-tiny substances

Engineers at the University of California San Diego and the University of California Berkeley have created light-based technology that can detect biological substances with a molecular mass more than two orders of magnitude ...

General Âé¶¹ÒùÔºics Feb 21, 2020

When plasmons reach atomic flatland

Researchers from the MPSD and the Lawrence Berkeley National Laboratory (LBNL) in the United States have discovered a significant new fundamental kind of quantum electronic oscillation, or plasmon, in atomically thin materials. ...

Nanophysics Feb 20, 2020

New graphene-based metasurface capable of independent amplitude and phase control of light

Researchers described a new strategy of designing metamolecules that incorporates two independently controllable subwavelength meta-atoms. This two-parametric control of the metamolecule secures the complete control of both ...

Analytical Chemistry Feb 14, 2020

Blood and sweat: Wearable medical sensors will get major sensitivity boost

Biosensors integrated into smartphones, smart watches and other gadgets are about to become a reality. In a paper featured on the cover of the January issue of Sensors, researchers from the Moscow Institute of Âé¶¹ÒùÔºics and ...

Optics & Photonics Feb 7, 2020

Silver sawtooth creates valley-coherent light for nanophotonics

Scientists at the University of Groningen used a silver sawtooth nanoslit array to produce valley-coherent photoluminescence in two-dimensional tungsten disulfide flakes at room temperature. Until now, this could only be ...

Optics & Photonics Feb 6, 2020

Scientists develop method to build up functional elements of quantum computers

Scientists from Far Eastern Federal University (FEFU, Vladivostok, Russia), together with colleagues from FEB RAS, China, Hong Kong, and Australia, manufactured ultra-compact bright sources based on IR-emitting mercury telluride ...

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