Principal Vibration Modes of the LaO-GaO Binary Glass Originated from Diverse Coordination Environments of Oxygen Atoms.

LaO-GaO binary glass exhibits unusual optical properties owing to its high oxygen polarizability and low vibration energy. These optical properties include high refractive indices and a wide transmittance range. In this study, we performed classical molecular dynamics simulations on LaO-GaO glass synthesized by an aerodynamic levitation technique.

Fluorescence characterization of heavily Eu-doped lanthanum gallate glass spheres with high quenching concentration.

Highly EuO-doped (up to 30 mol%) LaO-GaO glasses were synthesized by an aerodynamic levitation technique. The red emission associated with D5 level of Euwas most intense at 20 mol% EuO, indicating a small effect of concentration quenching even at high Eu concentration. The fluorescence decay curves indicated that the dominant transition mechanism at high Eu concentration was fast energy migration among the Eu ions, which averaged the environment of the Eu, yielding a nearly single-exponential decay of D5→F7 emission.

Low phonon energies and wideband optical windows of LaO-GaO glasses prepared using an aerodynamic levitation technique.

xLaO-(100 - x)GaO binary glasses were synthesized by an aerodynamic levitation technique. The glass-forming region was found to be 20 ≤ x ≤ 57. The refractive indices were greater than 1.