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Current issue

ELEKTRO 1/2020 was released on January 20th 2020. Its digital version will be available on February 12th 2020.

Topic: Electrotechnology; Materials for electrical engineering; Wiring materia

Main Article
Using mHealth technolgy for automated data collection and transmission

SVĚTLO (Light) 6/2019 was released on December 9th 2019. Its digital version will be available on January 9th 2020.

Professional organizations activities
Light technology konference of Visegrád countries LUMEN V4 2020 – 1st announcement
23rd International conference SVĚTLO – LIGHT 2019
56th Conference of Society for development public lighting in Plzeň
What is new in CIE

Interiors lighting
Halla illuminated new Booking.com offices in Prague centre

Discovery of light-induced ferroelectricity in strontium titanate

17.06.2019 | Phys.org | www.phys.org

Light can be used not only to measure materials' properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state.

A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg have used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.

Feroelectricity induced by light

Ferroelectricity is a state in which the constituent lattice is polarized in one specific direction, forming a macroscopic electrical polarization. The ability to reverse polarization makes ferroelectric materials particularly suitable for digital information encoding and processing. The discovery of a light-induced ferroelectric is highly relevant for a new generation of high-speed devices, and is presented in the journal Science.

Read more at Phys.org

Image Credit: Joerg M. Harms

-jk-