Аннотации:
The results of the investigation of two new laser hosts are reported. Stimulated emission from Nd3+ ions has been observed for the first time in the two ordered fluoride crystals of the KF–YF3 system: KYF4 (FYK) and K2YF5 (PYFK). The major luminescent and lasing characteristics of the crystals are presented. The stimulated emission spectrum features and application prospects of the new laser hosts are discussed. © 1990 Taylor & Francis Ltd.