What is transmittance of laser?

Transmittance of a laser refers to the fraction of laser light that passes through a material or medium without being absorbed or scattered. It is typically expressed as a percentage and is influenced by factors such as the wavelength of the laser, the properties of the material, and its thickness. High transmittance indicates that the material allows a significant amount of laser light to pass through, while low transmittance suggests greater absorption or scattering. This property is crucial in applications like laser cutting, medical procedures, and optical communications.