IR up-conversion phosphors 980nm
IR up-conversion phosphors also called IR 980nm pigment.
we have yellow，green，red and blue，4 colors，
Up-Conversion is a very unusual phenomenon. A counter-intuitive anti-stokes process occurs where the material absorbs lower energy photons and emits higher energy photons as fluorescence. The trick is that up-conversion materials absorb two or more low energy photons and then emit one high energy photon. By definition, up-conversion phosphors must be much less efficient than down-conversion phosphors. Typically, up-conversion phosphors are illuminated with high intensity light sources such as lasers in a controlled (subdued) lighting environment.
Our IR absorbing pigment does not fluoresce and has a low visibility in the human eye range. The IR absorbing pigment looks like faint green talcum powder and can be applied to white paper leaving no visible trace. With an IR sensitive camera, you can see the pigment.
