Evaluation of Nd3+-doped BiB3O6 (BIBO) as a new potential self-frequency conversion laser crystal
Evaluation of Nd3+-doped BiB3O6 (BIBO) as a new potential self-frequency conversion laser crystal
复制标题
DOI：
10.1016/s0030-4018(01)01740-0
复制
发表时间：
2002-03
影响因子：
2.4
通讯作者：
A. Brenier;I. Kityk;A. Majchrowski
中科院分区：
文献类型：
--
作者：
A. Brenier;I. Kityk;A. Majchrowski
We present at room temperature emission and absorption spectra of new-synthesised Nd3+-doped BiB3O6(BIBO) in X-, Y-, Z-polarisations. The measured Nd3+concentration in the crystal remains low (1.08×1019ions/cm3) and prevents up to now laser oscillation. The Judd–Ofelt analysis was performed with the results: Ω2X=0 cm2, Ω4X=0.556×10−20cm2, Ω6X=0.227×10−20cm2, Ω2Y=0 cm2, Ω4Y=0.307×10−20cm2, Ω6Y=0.177×10−20cm2, Ω2Z=0.069×10−20cm2, Ω4Z=0.433×10−20cm2, Ω6Z=0.117×10−20cm2. The highest emission cross-section near 1079 nm is 2.2×10−20cm2. The4F3/2emission lifetime is 53 μs . Low temperature spectroscopy reveals that there is only one kind on Nd3+emitting centre which substitutes Bi3+cations. We evaluate the ability of the material to be a self-frequency conversion laser crystal by calculating the phase matching directions, the effective nonlinear optical coefficients and the effective emission cross-sections for self-frequency doubling, self-sum and difference frequency mixing. We have found that the emission peak at 1069 nm existing mainly for Y-polarisation was the most favourable with directions of propagations in the YZ-plane (φ=90°) for self-sum frequency mixing and in the XZ-plane (φ=0°) for the self-difference frequency mixing. For these directions the effective nonlinear optical coefficient (up to 3.2 pm/V) and the effective emission cross-section have simultaneously the highest values.
