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A Boost to the Optical Properties of Gold Nanoclusters by Designed Proteins

Gold nanoclusters are groups of a few gold atoms with interesting photoluminescent properties. The features of gold nanoclusters depend not only on their structure, but their size and also by the ligands coordinated to them.

11 Jan 2022

Research Provides a New Strategy to Activate High-Order Modes for Multiband Mid-Infrared Antennas

In a new publication from Opto-Electronic Advances; the research groups of Professor Zhong-Qun Tian from Xiamen University, Xiamen, China and Professor Huigao Duan from Hunan University Changsha, China discuss nanobridged rhombic antennas supporting both dipolar and high-order plasmonic modes with spatially superimposed hotspots in the mid-infrared.

6 Jan 2022

New Filter-Free Imaging Sensors Could Improve Low-Light, Fast Imaging

Newly developed pixel-scale metasurface lenses—flat surfaces that modify light using nanostructures—have been demonstrated to help create imaging sensors that are about three times more sensitive than those now in use. The new sensor architecture may allow digital cameras to image faster or in low-light circumstances.

17 Dec 2021

A Nanocomposite Could Help Improve Medical Imaging and Security Screening

A nanocomposite that absorbs X-rays and then, with nearly perfect efficiency, re-emits the captured energy as light, could help to improve high-resolution medical imaging and security screening.

16 Dec 2021

Revolutionary Imaging Technology Compresses Lamp Light into a Nanometer-Sized Spot

Scientists have developed new materials for next-generation electronics so tiny that they are not only indistinguishable when closely packed, but they also don't reflect enough light to show fine details, such as colors, with even the most powerful optical microscopes.

26 Nov 2021

Advanced Imaging Technology Could Transform Dynamic Optical Nanothermometry

A new imaging method, formulated by the teams of Professors Jinyang Liang and Fiorenzo Vetrone at the Institut National de la Recherche Scientifique (INRS), can compute temperature in 2D, without contact, and within a snap.

10 Nov 2021

Twisted Bilayer Graphene can be Used to Guide and Control Light

When two layers of graphene are placed one on top of the other, and twisted among them by a very small angle, a "moiré pattern" is formed and the physical properties of the system have proven to change dramatically.

1 Nov 2021

Skyrmions can Open Up Infinite Possibilities for Next Generation of Informatics Revolution

Since 1890, topology in optics and photonics is known to be a hot topic where singularities in electromagnetic fields have been taken into account.

25 Oct 2021

Researchers Realize On-Chip Optical Levitation in a Vacuum with Ultrathin Metalens

Researchers have created tiny chip-based optical tweezers that can be used to optically levitate nanoparticles in a vacuum.

22 Oct 2021

New Method Produces Lens for Focused Image or Spectrum

A group of scientists has set out to develop holographic lenses that provide visible and infrared starlight into either a focused image or a spectrum. The researchers took their inspiration from an idea for finding exoplanets with a huge space telescope.

22 Oct 2021