Neodymium-doped benzil crystals have been synthesized and characterized for their absorption, emission, and kinetics properties. From Judd–Ofelt analysis, the radiative decay time of Nd emission (peaking at 1055 nm) is estimated to be equal to 441 μs. The experimental Nd lifetime (under Ar+ laser excitation) is equal to 19 μs. The broad emission band centered at approximately 700 nm (τ<sub>decay</sub> ≈ 15 ns) and the Raman scattering with characteristic frequency shift of 1600 cm<sup>−1</sup> have been observed at excitation of benzil with 532-nm <i>Q</i>-switched laser pulses. We show that rare-earth-doped benzil can be considered as a potential candidate for luminescent and solid-state laser material.
© 1998 Optical Society of America
M. A. Noginov, M. Curley, N. Noginova, W. S. Wang, and M. D. Aggarwal, "Optical Studies of Nd-doped benzil, a potential luminescent and laser material," Appl. Opt. 37, 5737-5742 (1998)