Abstract
The authors report growth, refractive index dispersion, optical absorption and Judd-Ofelt spectroscopic properties of Er3+-doped lutetium gallium garnet (Lu3Ga5O12) single-crystal. The crystal was grown by Czochralski technique. The density of the crystal was measured by Archimedes method. Er3+ concentration in the crystal was measured by inductively coupled plasma atomic emission spectroscopy. The measurement results allow to reach that Er3+ ion in the crystal has a desired segregation coefficient ∼1.0. Refractive index of the crystal was measured as a function of wavelength in the range of 245–1553 nm using an ellipsometer and a prism coupler, and a Sellmeier equation is established for the crystal. Optical absorption of Er3+ in the crystal was studied in the wavelength range of 300–1700 nm and Er3+ absorption cross section spectrum was obtained. Based on the absorption cross section spectrum and the Sellmeier equation, Judd-Ofelt analysis was done for the crystal. Visible, near-infrared and mid-infrared fluorescence spectra and lifetimes of Er3+ in the crystal were measured, and emission characteristics are demonstrated. Spectroscopic knowledge of peaking absorption cross section, oscillator strength, Judd-Ofelt intensity parameters, radiative rate, fluorescence branch ratio, radiative and fluorescence lifetime, and quantum efficiency of some typical Er3+ emissions is obtained.
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.
