Is the laser hot or cold? Is a laser a cold or hot light source?

The laser that conforms to a certain color wavelength is what color laser, and if you distinguish it by wavelength, there are n kinds of lasers.

Laser refers to the amplification of light produced by stimulated radiation and is a high-quality light source.

Features of the laser:

1.Good directionality.

2.Good monochromacy.

3.Energy concentration.

4.Good coherence.

What is Laser?

Laser is a light source invented in the 60s. laser is an acronym for "stimulated emission amplification" in English. There are many types of lasers, ranging in size from a football field to a grain of rice or a grain of salt.

Gas lasers include helium, neon lasers and argon lasers; Solid-state lasers include ruby lasers; Diode lasers have laser diodes, like those found in CD machines, *** machines, and CD-ROMs. Each laser has its own unique method of generating lasers.

Lasers have many properties: first, lasers are monochromatic, or rather single-frequency. There are lasers that can produce different frequencies of laser light at the same time, but these lasers are isolated from each other and are used separately.

Secondly, lasers are coherent light. The characteristic of coherent light is that all its light waves are synchronized, and the whole beam of light acts like a "wave train". Thirdly, the laser is highly concentrated, which means that it has to travel a long distance before it disperses or converges.

It doesn't matter if the laser is hot or cold, I guess the important thing is that you go to the hospital for the laser**. What does it feel like?

** The process, or the process of action of the laser, is hot. It's all about its heat. Super hot, to destroy the lesions.

But fear not. It's just a temporary burn. It won't last long.

Cold will only heat up when it acts on an object.

1.Thermal light source: A light source that uses thermal energy to excite (incandescent lamps, arc lamps, etc.).

2.Cold light source: a light source that uses chemical energy and electrical energy to excite (fireflies.

neon, etc.).

3.Cold light source is a new high-tech light source after the incandescent lamp, LED, LCD light source products, due to the loss of its luminous principle is under the action of electric field, the electronic collision excites the fluorescent material to produce luminescence. It has very excellent optical and variable flash characteristics.

The cold light source does not generate heat when working.

A series of problems associated with heat accumulation are avoided.

The essence of the difference is whether or not a large amount of infrared light is generated.

The light coming out of the thermal light source and the infrared filter should be similar to the light emitted by the cold light jujube source, because the infrared light has been filtered out.