When it comes to lasers, many people may have been exposed to it since childhood. From laser pointers used by teachers in class or training, to laser transmitters developed in military or major scientific research fields, it can be said that lasers have been widely used in our work and life.
What is a laser, and where does it come from? Speaking of the discovery of laser pointer, the first thing to mention is the physicist Einstein, who we all know well. As early as the beginning of the last world, Einstein discovered the principle of laser in the process of studying atoms and revealed it in his subsequent works. So how is this super cool light produced?
The basic principle is the energy released by the electrons in the atom in the process of jumping back and forth between low energy level and high energy level, but this energy appears in the form of photons, and what is presented before our eyes is cool. Beam. This kind of beam has many characteristics that are different from ordinary beams, such as not easy to disperse and very high brightness. Its application fields are also very extensive, covering many fields such as education and training, traffic navigation, medical beauty, military and so on.
In addition to the above fields, there are actually many unique applications of lasers that are gradually being developed. We must know that the laser can be regarded as one of the greatest inventions since the 20th century, and its existence and application are still being explored. Recently, through bold attempts by scientists, some magical effects of lasers have been gradually developed.
The first is the application of artificial rainfall. We all know that when a drought or a fire occurs, only when certain meteorological conditions are available, our scientific and technological means is to throw chemical substances such as silver iodide at high altitudes through anti-aircraft guns or airplanes, so as to achieve the condensation of water vapor in the air into The purpose of rain falling. In the past few decades, this technology has been applied, but there are also many problems, such as the difficulty of measuring moisture.
Several scientists in Sweden tried to make a fuss on the laser. Through their experiments and efforts, they developed that when the laser was irradiated into the air, water droplets were quickly formed in the air. The ionization of the original laser ionized nitrogen and oxygen ions in the air to form precipitation. Although for now, the promotion and application of this technology certainly still has some problems, but once it matures, it is believed that it can replace the traditional technology soon.
The second is the application in invisible "black technology". As a special kind of photoelectron, the application of green laser pointer in the field of optics has long been eyed by many scientists and conducted in-depth research. Especially in the field of invisible black technology, after nearly ten years of research, scientists have been trying to develop a real "hiding" technology that cannot be discovered by humans or other instruments with naked eyes or physical means.
Recently, a British scientist discovered the unique role of laser in the field of stealth. Through its particularity, it can change the light-sensing mode of the object, so as to achieve a state of being invisible. Scientists make use of the characteristics of human light-sensing technology and creative use of laser technology to prevent the object being shot from emitting or refracting light. This makes the object disappear from the human eye from the optical level.
In addition, the application of lasers in the military field is gradually being explored and developed. I believe that with the development of technology, laser technology can be more and more widely used in various fields of our social life.