2024-11-11
The birth of the laser cutting machine has caused a strong response in many industries. It not only improves the efficiency of work, reduces unnecessary labor, but also reduces cost output.
However, how is the laser inside the laser cutting machine effectively cut? First, let's explore the properties of the laser in the stainless steel laser cutting process: Lasers are usually single-color, or more precisely, single-frequency. Some lasers have the ability to generate lasers of different frequencies at the same time, but these lasers are independent and isolated from each other during use. Furthermore, lasers are coherent light sources. The uniqueness of coherent light is that all its light waves are synchronized, making the entire beam of light look like a continuous "wave train". Furthermore, lasers are highly concentrated, which means that it needs to travel a considerable distance before it may disperse or converge.
Laser (LASER) is a light source invented in the 1960s. LASER is actually the acronym for "Light Amplification by Stimulated Emission of Radiation" in English. There are many types of lasers, and their size can reach several football fields or a grain of rice and salt. Gas lasers include helium-neon lasers and argon lasers; ruby lasers are a type of solid-state laser; semiconductor lasers include laser diodes, which are found in CD players, DVD players, and CD-ROMs. Each laser has its own unique laser generation technology.
Before the invention of laser technology, high-voltage pulsed xenon lamps had the highest brightness among artificial light sources, almost equal to the brightness of the sun, but the laser brightness of ruby lasers can reach tens of billions of times that of xenon lamps. Because lasers have extremely high brightness, they can effectively illuminate distant objects. The light emitted by ruby lasers produces a brightness of about 0.02 lux (a unit of measurement for illuminance) on the surface of the moon, and its color is bright red, and the laser spot is very conspicuous. If the highest-power searchlight is used to illuminate the moon, the brightness produced is only about one trillionth of a lux, which is completely imperceptible to the human eye. Directional light emission is the key factor that causes the abnormally high brightness of lasers. In a very narrow space, a large number of photons converge and emit, so its energy density reaches a natural extremely high level. The brightness of lasers is in the millions compared to sunlight, and it is created by humans.
About laser color: The color of a laser is determined by its wavelength, which in turn is determined by the active material that produces the laser light, that is, the material that produces the laser light when stimulated. When rubies are stimulated, they produce a deep rose-colored laser beam, which has a wide range of medical applications, such as for the treatment of skin diseases and for surgical operations. Argon, widely regarded as one of the most precious gases, has the ability to generate blue-green laser beams and has a wide range of applications, including laser printing technology, and is also an indispensable part of microscopic ophthalmic surgery.