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Current issue

ELEKTRO 7/2020 was released on June 24th 2020. Its digital version will be available on July 24th 2020.

Topic: Cables, conductors and cable engineering

Main Article
New traction power supply technology 25 kV/50 Hz (part 2)

SVĚTLO (Light) 3/2020 was released on June 8th 2020. Its digital version will be available on July 8th 2020.

Professional organizations activities
Announcement: LUMEN V4 2020 is cancelled
What is new in CIE, April 2020

Accessories of lighting installations
Foxtrot as a “Master Control” in Hotel Breukelen
Lighting regulators – control of lighting on the constant level

Ultra-thin camera lenses could see the light of day

12. 6. 2020 | Chalmers University of Technology | www.chalmers.se/en

In the future, camera lenses could be thousands of times thinner and significantly less resource-intensive to manufacture. Researchers from Chalmers now present a new technology for making the artificial materials known as ‘metasurfaces’, which consist of a multitude of interacting nanoparticles that together can control light. They could have great use in the optical technology of tomorrow. ​​​​​

Metasurfaces can be used for optical components in portable electronics, sensors, cameras or space satellites. The Chalmers researchers' new technology for making such planar surfaces is based on a plastic that is already used today to create other microstructures.

Metasurfaces

We put a thin layer of this plastic on a glass plate and, using a well-established technique called electron-beam lithography, we can draw detailed patterns in the plastic film, which after development will constitute the metasurface. The resulting device can focus light just like a normal camera lens, but it is thousands of times thinner – and can be flexible too,” says Daniel Andrén, a PhD student at the Department of Physics at Chalmers and first author of the scientific article recently published in the journal ACS Photonics.

Celý článek na Chalmers University of Technology

Image Credit: Daniel Andrén a Yen Strandqvist

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