HISTORY OF THE LASER
It was Albert Einstein who studied the behavior of electrons in atoms in response to light in 1917. Thus began the history of the laser (Light Amplification by Stimulated Emission of Radiation). He investigated the phenomenon of stimulated photon emission and thus the basic principle of the laser. It was not until 1960 that the first laser was produced by the American physicist Theodore Maiman.
PHYSICAL BASIS OF THE LASER
Laser beams are electromagnetic waves. They differ from conventional light (e.g. light bulbs) in the following ways: Combination of high intensity, very narrow frequency range (monochromatic light), sharp focusing of the beam and long coherence length. Extremely short and intense beam pulses with an exact repetition frequency are also possible over a very wide frequency range.
LASERS IN EVERYDAY LIFE
Lasers have found a permanent place in our daily lives. As components of CD-DVD players, barcode readers, laser pointers, distance measuring devices, cutting and welding tools and even laser technology in the medical field. Here they are often the means of choice in many treatments to carry out therapies that are not possible with other methods or involve much greater effort.
APPLICATION OF THE LASER
Its unique property lies in its versatility. The potential of laser light is being researched more and more and will certainly be expanded to include further indication areas. However, successful laser therapy can only be achieved by knowing the correct handling and the indication rangeof the laser.
