Infrared Up-Conversion Anti-counterfeiting and Tracing Technology and Infrared Laser Module

By |2020-04-14T08:59:31+00:00April 14th, 2020|Categories: Laserland News|Tags: , , |

Applications of Infrared Up-conversion Materials in Anti-counterfeiting and Trace Indentifying Technology Key words: infrared up-conversion; changing infrared to visible light; anti-counterfeiting technology. 1. Principle The general light excitation process follows the Stoke-Lomoli rule, that is, the maximum wavelength of the emitted spectrum of the excited substance moves in the long-wave direction relative to the maximum wavelength [...]