Optical Transition Probabilities of Er3+ Ions in ErBa3B9O18 Crystal

Abstract EN

The optical absorption and emission intensity of luminescent and birefringent crystal ErBa3B9O18 were examined from optical absorption data based on Judd-Ofelt theory.

The three intensity parameters Ω t ( t = 2,4 , 6 ) are 3.10 × 10−20, 0.87 × 10−20, and 1.80 × 10−20 cm2, respectively.

From the obtained intensity parameters, the radiative probabilities A r , radiative lifetime τ f , fluorescence branching ratios β c , and integrated emission cross sections ∑ have been calculated.

In comparison with other Er-doped luminescent crystals, ErBa3B9O18 may find application in thin disk laser.