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Materials Science Sep 21, 2020

Anisotropic plasmons in quasi-metallic 2-D materials

National University of Singapore physicists have discovered new mid-infrared anisotropic collective charge excitations in quasi-metallic phase two-dimensional (2-D) transition-metal dichalcogenides (TMDs).

Optics & Photonics Sep 16, 2020

Âé¶¹ÒùÔºicists make electrical nanolasers even smaller

Researchers from the Moscow Institute of Âé¶¹ÒùÔºics and Technology and King's College London cleared the obstacle that had prevented the creation of electrically driven nanolasers for integrated circuits. The approach, reported ...

Optics & Photonics Sep 14, 2020

First fiber-optic nanotip electron gun enables easier nanoscale research

Scientists at the Department of Energy's Oak Ridge National Laboratory and the University of Nebraska have developed an easier way to generate electrons for nanoscale imaging and sensing, providing a useful new tool for material ...

Bio & Medicine Sep 11, 2020

A new method to produce gold nanoparticles in cancer cells

Dipanjan Pan, professor of chemical, biochemical, and environmental engineering at UMBC, and collaborators published a seminal study in Nature Communications that demonstrates for the first time a method of biosynthesizing ...

General Âé¶¹ÒùÔºics Sep 9, 2020

A Janus emitter for passive heat release from enclosures

It is presently challenging to efficiently cool enclosed spaces such as stationary automobiles that trap heat via the greenhouse effect. In a new report in Science Advances, Se-Yeon Heo and a team of scientists in materials ...

Nanophysics Sep 8, 2020

Paving the way for tunable graphene plasmonic THz amplifiers

Tohoku University Professor Taiichi Otsuji has led a team of international researchers in successfully demonstrating a room-temperature coherent amplification of terahertz (THz) radiation in graphene, electrically driven ...

Nanophysics Sep 2, 2020

Nanoparticle-based computing architecture for nanoparticle neural networks

Scalable nanoparticle-based computing architectures have several limitations that can severely compromise the use of nanoparticles to manipulate and process information through molecular computing schemes. The von Neumann ...

Nanophysics Aug 28, 2020

Round nanoparticles improve quality factors of surface lattice resonances

Plasmonic surface lattice resonances (SLRs) supported by metal nanoparticle arrays have many merits such as strong field enhancements extended over large volumes, as well as long lifetimes, narrow linewidths, angle-dependent ...

Optics & Photonics Aug 28, 2020

Optical imaging enters sub-nanometer era

Prof. Dong Zhenchao and Prof. Hou Jianguo from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) have improved the spatial resolution from 8 nm to ~8 Ã… of photoluminescence ...

Optics & Photonics Jul 31, 2020

Nanoparticle meta-grid for enhanced light extraction from light-emitting devices

A tailored layer of plasmonic nanoparticles can be introduced into the epoxy casing of a light-emitting diode (LED) to improve the device's light output, to benefit energy savings and boost the LED lifetime. In a new report ...

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