Optics and Photonics News

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New Way to Determine Cathode Emittance of Electron Beams for Wakefield Acceleration

The generation of a bright electron beam with unique properties is one of the most crucial challenges faced in an extensive range of high-powered scientific instruments, such as electron microscopes, free-electron lasers, and wakefield accelerators.

2 Sep 2020

Researchers Demonstrate Photoluminescence Imaging with Sub-Nanometer Resolution

Prof. DONG Zhenchao and Prof. HOU Jianguo from University of Science and Technology of China of Chinese Academy of Sciences improved the spatial resolution from 8 nm to ~8 Å of photoluminescence imaging.

31 Aug 2020

A Major Breakthrough in Miniaturizing Photonic Chips

Photonic integrated circuits that use light instead of electricity for computing and signal processing promise greater speed, increased bandwidth, and greater energy efficiency than traditional circuits using electricity.

28 Aug 2020

New Metalens Helps Produce High-Resolution Images with Wide Field of View

At the University of São Paulo’s São Carlos School of Engineering (EESC-USP), Brazil, scientists have designed a lens that is a thousand times thinner when compared to a strand of human hair.

25 Aug 2020

New Molecular Coupling Tool Employs Green Light and pH Triggers

Queensland University of Technology researchers have created a new molecular coupling tool employing both green light and pH triggers that has potential for use in applications such as drug delivery and 3D cell culture platforms.

25 Aug 2020

Combination of Twisted Light and Frequency Combs can Produce Dynamic Light Structures

It is not every day that scientists are able to produce an entirely new kind of light, but when they do the implications can be dramatic.

25 Aug 2020

Top Layer of Light-Dependent Plastic Film Causes Shape-Shifting Movement

Azobenzene-containing plastic film is a peculiar material; its surface can change shape when exposed to light, making it a valuable component in modern technologies/devices like TV screens and solar cells.

24 Aug 2020

Scientists Use Industrial Laser to Produce Attosecond Light

Scientists from the University of Central Florida are rendering the groundbreaking field of attosecond science more accessible to investigators from all fields of disciplines.

24 Aug 2020

Liquid Crystal Technology Produces Reconfigurable Metalenses

Human beings have learnt the art of refracting light for over five centuries—by molding glass into lenses and then integrating or bending those lenses to enlarge and clarify images either far-off or close-up.

21 Aug 2020

High-Q Nanoresonators Could Lead to Novel Ways of Manipulating and Using Light

Light is notoriously fast. Its speed is crucial for rapid information exchange, but as light zips through materials, its chances of interacting and exciting atoms and molecules can become very small.

21 Aug 2020