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An overview of the laser?

Laser Light is emitted from the atoms that make up matter. After the atoms gain energy, they are in an unstable state (that is, excited state). It emits energy in the form of photons. The high power laser pointer is a photon queue that is lured (excited). The photons in this photon queue have the same optical characteristics and extremely consistent pace. An analogy is that ordinary light sources, such as light bulbs, emit different photons, and they will run around in all directions, which is not united. However, the photons in the laser are thinking about one place and moving toward one place. This leads to They are so invincible and powerful that people used to call lasers "dead light".

An overview of infrared light?

Infrared (Infrared) is an electromagnetic wave with a wavelength between microwave and visible light. The wavelength is between 760 nanometers (nm) and 1 millimeter (mm), which is invisible light that is longer than red light. Any substance above absolute zero (-273.15°C) can produce infrared rays. Modern physics calls it heat rays. Medical infrared can be divided into two categories: near infrared and far infrared. Containing heat energy, the heat of the sun is mainly transmitted to the earth through infrared rays.

Lasers also work in the infrared band. Green laser pointer can be understood as a form of light source, and infrared refers to a specific waveband of electromagnetic waves (although the range is large). The non-homogeneous differences between them will not prevent them from intersecting. The visible light waveband laser allows everyone to have This is a preconceived concept. . It's actually something in two dimensions.