Laser

Laser: application in medicine and more

A laser is a device that is used to create a narrow beam of light with a high concentration of energy. This is achieved through the process of stimulated emission, which gives the name to this device - the abbreviation LASER stands for Light Amplification by Stimulated Emission of Radiation. Lasers have a wide range of applications, from science and technology to medicine.

In medicine, lasers are used to treat various diseases. One of the uses of laser in medicine is the treatment of atherosclerosis. A laser can be used to destroy atherosclerotic plaques inside the coronary arteries, which can lead to coronary heart disease. This procedure is known as laser atherectomy, and it may be more effective and safer than traditional treatments.

Lasers are also used in eye surgery. Various types of lasers can be used to perform operations on the cornea, lens capsule, and retina. One of the most common uses of lasers in eye surgery is vision correction. The laser can be used to reshape the cornea, which can correct some types of nearsightedness, farsightedness, and astigmatism.

Lasers are also used to treat cervical intraepithelial neoplasia (CIN). This is a precancerous condition of the cervix that can progress to cervical cancer. Laser therapy can be used to remove diseased tissue and prevent cancer from developing.

In addition to medical applications, lasers are widely used in science and technology. They can be used for fine-tuning optical components, measuring distances and speeds, marking and cutting materials, and for scientific research in physics, chemistry and biology.

In conclusion, a laser is a device that has a wide range of applications in medicine, science and technology. It can be used to treat various diseases, as well as for various technical and scientific applications. Due to their efficiency and precision, lasers are becoming increasingly important in the modern world.

Laser: operating principle and application in medicine

A laser is a device that produces a very thin beam of light with a high concentration of energy in it. The abbreviation "laser" comes from the English phrase "Light Amplification by Stimulated Emission of Radiation" (light amplification by stimulated radiation).

The laser was originally created for scientific and military purposes, but later its potential in medicine was discovered. In surgical practice, lasers are used to perform operations involving small areas of tissue with minimal damage to surrounding tissues.

For example, laser is widely used to remove blockages in the coronary arteries caused by atheroma. This is a procedure called laser atherectomy. The laser is also used to remove certain types of birthmarks from the skin, such as nevi.

In eye surgery, various types of lasers are used, which make it possible to perform operations on the cornea, lens capsule and retina. For example, the argon laser is used to treat glaucoma, and the excimer laser is used to correct vision.

In addition, lasers are used in the treatment of cervical intraepithelial neoplasia. This is a precancerous condition of the cervix that can be treated with laser surgery.

To remove the endometrial layer, a special laser is used - AHr:Nd-na3ep (Nd:YAG laser). This procedure is called laser endometrial ablation and is used to treat some types of female infertility.

Thus, lasers are widely used in medicine for various types of surgeries and treatment of diseases. Their use allows to reduce the number of injuries and damage to surrounding tissues, which speeds up the recovery process and reduces the patient’s rehabilitation time.

To obtain laser radiation during its generation, special devices are used that are highly sensitive to changes in electrical power. In this case, it means the optical conversion of electrical energy. A special device generates laser radiation by exposing the active medium of a solid-state laser to elementary particles pumped by electric current. A feature of these radiation sources is the presence at the output, in addition to the main radiation of a certain wavelength, of narrow optical harmonics with wavelengths that are multiples of the wavelength of the main radiation.