Abstract
Spectroscopic properties of several complex fluoride crystals K2YF5, KYF4, LiKYF5, CsY2F7 and CsGd2F7 doped with Pr3+ have been studied under synchrotron radiation and F2 excimer laser excitation. The Pr3+ doped K2YF5 and LiKYF5 crystals with only a single crystallographic site for Pr3+ ions show typical properties as in the case of spectroscopic systems where the low edge of the 4f5d Pr3+ configuration lies slightly below the 1S0 level of the 4f2 Pr3+ configuration. The Pr3+:KYF4 crystal has the same properties caused with only the 5d–4f luminescence of Pr3+ in spite of the fact that in this crystal there are six sites suitable for Pr3+ ions. The luminescence spectrum of the Pr3+:CsY2F7 crystal is determined by both the 5d–4f luminescence and the 4f–4f emission originating from the 1S0 Pr3+ level, which is due to two groups of optical Pr3+ centers with the energy levels of the 1S0 state just between the lowest 5d levels of Pr3+ for these two kinds of centers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
