The laser shows are used for special events such as wedding parties, anniversaries, celebrating a special event like an inauguration or prom. But most people choose to use laser shows at concerts. The big celebrities for entertaining the audience turn to these laser shows which prove to be downright spectacular.
For example, in Dubai people usually use laser shows and fireworks at their events because they think that it represents a good way of “dressing” the sky in some festive light clothes. People from this city are interested in finding the most creative laser shows in order to entertain the audience. Sometimes the organizers of the event are the one who take care of these things.
But what people do not usually know is the fact that originally the word “laser” is an acronym which comes from the English language and it means: Light Amplification by Stimulated the Emission of Radiation. Moreover, the laser shows have an interesting history too.
It is said that the principles of the laser ware set in 1916 by Albert Einstein himself, by an evaluation of the consequences of Max Planck's radiation law and by introducing the concepts of spontaneous emissions and stimulated emissions. These theoretical results were forgotten, however, until the Second World War because Einstein did not have time to develop a good theory.
In 1953, the American physicist Charles Townes and, independently, Nikolay Basov and Aleksandr Prokhorov from the Soviet Union succeeded in producing the first maser which was a device similar to a laser, but which emitted microwaves instead of laser radiation. For these good results, the three scientists were rewarded with the Nobel Prize in Physics in 1964.
But the experts from Dubai claim that people should be careful when they use laser shows. From the point of view of the danger which is posed by the laser beam on humans (mainly, when it comes to the eyes and skin), the lasers are classified into four classes. Currently the laser classification is not the same in all countries, but people are interested in making these classes to be defined in an internationally way.