Infrared absorption spectrum is also a kind of molecular absorption spectrum. when the sample is irradiated by infrared light with continuously changing frequency, the molecules absorb some frequencies of radiation, and its vibration or rotation motion causes the net change of dipole moment, resulting in the transition of molecular vibration and rotation energy level from the ground state to the excited state, which weakens the transmitted light intensity corresponding to these absorption regions.

Infrared laser and ultraviolet laser have been widely used in the field of micropores. The difference in processing mode between the two makes the UV laser make up for the limitations of infrared laser very well. Infrared and ultraviolet laser applications Infrared laser and ultraviolet laser have