Slovenian Researchers Become Co-authors in Solving the Mystery of the Nature of Light

As part of the study conducted by Slovenian, Canadian and Brazilian researchers under the leadership of a representative of the Faculty of Mechanical Engineering, University of Ljubljana, Tomaž Požar, the 150-year-old mystery on how a moving amount of light passes to the substance in time and space was solved. Besides, it was found out that this process generates elastic waves (similar to seismic waves). The researchers published their article in the Nature Communications Journal.

According to the website of the University of British Columbia (province of Canada), as part of the experiment, the researchers sent a laser beam to a small mirror, while the reflected light produced elastic waves similar to those that occur during an earthquake. However, elastic light waves are much shorter than seismic waves.

During the study led by Tomaž Požar, Slovenian researchers conducted measurements, and their colleagues from Canada calculated optical forces. Then the Brazilian researchers compiled a detailed model of wave propagation.

The results obtained can be used to control optical tweezers used by researchers to accurately move and hold small particles. These tweezers, having a laser beam, are now effectively used, first of all, in determining the influence of light on rigid substances moving in space as a single whole.