Author/Authors :
L. Marciniak، نويسنده , , W. Strek، نويسنده , , A. Bednarkiewicz، نويسنده , , D. Hreniak، نويسنده , , M.C. Pujol، نويسنده , , F. Diaz، نويسنده ,
Abstract :
The intense anti-Stokes white emission of Li(K)P4O12 crystals was observed in vacuum under 808 nm excitation. Influence of optical pumping power and ambient pressure on up-conversion properties have been investigated. It was found that intense white anti-Stokes white emission occurred at vacuum atmosphere. Its origin has been discussed in terms of Nd2+-charge transfer luminescence occurring at the limited thermal conversion of irradiated crystals in vacuum.
