A group of scientists led by Hui Cao from Yale University investigated which part of the photons of the beam
For this, physicists have developed twosupersensitive matrices installed on sheets of pressed zinc oxide nanoparticles that played the role of this wall, and began to monitor how much light passes through its different parts.
Scientists have used for these experiments an optical device - a spatial light modulator. With it, you can flexibly control the spatial structure of the beams of electromagnetic waves.
As a rule, any optical beam falling intoscattering medium, such as fog, begins to spread in lateral directions. We found out: the laser beam can be prepared in such a way that it will only move forward through it.
Hui Cao from Yale University
Physicists during the experiment managed to setspatial modulator such a form of the beam, that he began to pass through opaque objects. To do this, its structure should be made similar in width to the channels between atoms and electrons, where light can move freely.
As a result of the experiments, the laser beam became less scattered, and its power increased 4.5 times.