What is a laser and how is it obtained?
Lasers are devices that produce monochromatic, flat, intense, single-phase monochromic light. It can be colorless as well as colored. Visibility is related to wavelength. This wavelength and power determine the field of use in medicine.
With the help of the laser, electromagnetic waves are strengthened and aligned. Thus, a high-energy light beam with a cutting and burning effect is obtained in the area to be treated.
The usage areas of lasers vary according to the wavelengths they have.
At different wavelengths, all tissues have different absorption rates. Therefore, the choice of laser depends on the process to be performed. For example, the KTP laser has a wavelength of 532nm. The KTP laser beam is well suited for small and delicate surgical procedures, as it can be highly absorbed by hemoglobin and oxyhemoglobin.
The working principle of the laser: The energy obtained by giving light from the outside, passing an electric current or by a chemical way reaches the atoms in the environment. Some of them absorb this energy. Excess energy makes atoms unstable. An excited and unstable atom that hits itself with a photon gives off excess energy by emitting a photon. Photons likewise allow other photons to be emitted. Photons in the environment increase with excitations. When almost all of the atoms start to emit photons, a stronger beam is formed. This is the laser beam. Since laser beams are of high frequency, they have sunray properties. However, laser beams are single-frequency.