The Czochralski Growth and Characterization of SrLaGa3O7:Ho(3+) Single Crystals
Abstract
Rare - earth (Nd, Pr, Dy) doped SrLaGa3O7 single crystals are promising laser materials. Also crystals doped with Ho(3+) ions could be used as efficient laser in visible and near infrared regions. Laser materials, generating in visible and infrared regions, can be used for optical data recording in microphotolithography and in medicine. SrLaGa3O7 single crystals doped with 0.3, 1.5 and 2 at % of Ho(3+), respectively were grown by the Czochralski method with use of iridium crucible and afterheater. According to EPMA measurements distribution coefficient of Ho(3+) in SrLaGa3O7 was estimated to be K approx. 0.22. Optical absorption spectra in visible and infrared regions were measured at 300 K and 12 K, respectively. Optical quality of single crystals was checked by the use of computerized imaging spectropolarimeter and polariscopic measurements. Temperature dependence of capacitance and conductivity for different dopant concentrations were also measured.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2001
- Accession Number
- ADP011931
Entities
People
- A. Bajor
- I. Pracka
- J. Kisielewski
- M. Malinowski
- M. Swirkowicz
Organizations
- Institute of Electronic Materials Technology