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Optical Nanoantennas can be Dynamically Tuned by Applying Electrical Potentials

Researchers at Linköping University have developed optical nanoantennas that can be turned on/off and gradually tuned by applying electrical potentials. The study, which has been published in Advanced Materials, opens for applications including dynamic flat metaoptics and tuneable smart materials.

18 Feb 2022

Global Research Team Develops Near-Field Optical Sensing Platform for Highly Sensitive Biosensors

A global research team has established a near-field optical sensing platform that is capable of producing arrayed light beams with high-spatial and high-intensity constraints in semi-open areas.

16 Feb 2022

Researchers Leverage 3D Design Space to Create a Metamaterial with Robust Optical Properties

Metamaterials, made up of small, repeated structures, engineered to produce desired interactions with light or sound waves, can improve optical devices used in telecommunications, imaging and more. But the functionality of the devices can be limited by the corresponding design space, according to Lei Kang, assistant research professor of electrical engineering at Penn State.

3 Feb 2022

Antimony Trisulphide Nanostructures Show Potential for High Resolution Video Displays

One of the key components behind next-generation high resolution video displays will be optical nanoantennas. These devices use nanotechnology to mix and interfere with light beams to produce colour and even holograms.

24 Jan 2022

Real-Time, In Situ Monitoring of Early Cellular Apoptosis by Using a Nano-Optical Device

The biological intracellular microenvironment is complex, made up of various cell compartments and intracellular substances. To fully characterize the physiological function of living cells, one of the key factors is the development of micro/nanoprobes for subcellular measurement.

19 Jan 2022

Drug Development Could Be Accelerated Using New Photonic Effect

Twisted semiconductor nanostructures turn red light into twisted blue light in minuscule volumes, which may help create chiral drugs.

17 Jan 2022

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

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