Operation of the technology laser

The technology laser has played an important role in books and science films fiction, since we have been able to verify in “the war of the galaxies”, “Star Trek”, etc. It is no wonder thanks to this class of histories, we associate the lasers with wars of the future and great spaceships. But aside from this, the technology laser also is something very important in our daily lives. In fact, we can find it in an incredible rank of products and electronicses of all type. You will be able to find of reproducers CD until measuring instruments. What it is used to clear the tattoos, to do you implant of hair, and operations of eye, everything takes control of laser.
But what is a laser? What makes the ray different from a laser from the ray generated by a lantern? More specifically, that makes a ray laser different from other classes of light? How they classify the laser? We will see in the following guide, the different types from laser, their different wavelength, and the uses that we give him. But first of all, we will see the foundations of the technology laser.
The bases of the atom
Only there are about 100 types different from atom in all the universe. Everything what we see is done of these one hundred atoms in a limitless number of combinations. As these atoms are placed and tied to each other, they determine if an object is going to be a water glass, a metal piece, or the bubbles that leave a refreshment.
The atoms are in continuous movement. They are continuously vibrating, moving and rotating. Even the atoms that form the tables where you have the computer, are continuously moving. The solid objects are in movement. The atoms can be in different excited states. In other words, they can have different energies. If we applied a great amount of energy to an atom, it can take a high excitation level, and this depends on the energy applied via heat, light or electricity.
A simple atom consists of a nucleus (which contains protons and neutrons) and an electron cloud. Aid to think about electrons of the cloud circulating the nucleus in different orbits.
Absorbing energy
It is of utility to think about the orbits mentioned before, like different energy levels from the atom. In other words, if we applied heat to an atom, we can hope that some electrons in the orbits of more losses, can transicionar to higher orbits, moving away of the nucleus. We have explained it of a way simplified enough, but it reflects the idea of how the atoms in terms of laser work.
Once an electron moves to one more a higher orbit, possibly it wants to return to its previous state. When it does, it releases to its energy like a photon - a light particle. You can see atoms release energy like photons all along. For example, when you see the rods of a toaster become from red an incandescent one, the red color is brought about by atoms, which excited by the heat, release photons. When you see a film in a TV screen, which you are seeing are phosphorus atoms, excited by electrons at high speed and emitting different colors from light.
Any thing that produces light, as can be fluorescent lights, fluorescent gas lanterns or tubes, do by means of the action of electrons changing the orbits and releasing photons. In the following part, we will be able to see the connection between the laser and atoms.