Multi-wavelength emission through self-induced second-order wave-mixing processes from a Nd3+ doped crystalline powder random laser

Scientific Reports
André L MouraCid B de Araújo

Abstract

Random lasers (RLs) based on neodymium ions (Nd(3+)) doped crystalline powders rely on multiple light scattering to sustain laser oscillation. Although Stokes and anti-Stokes Nd(3+) RLs have been demonstrated, the optical gain obtained up to now was possibly not large enough to produce self-frequency conversion. Here we demonstrate self-frequency upconversion from Nd(3+) doped YAl3(BO3)4 monocrystals excited at 806 nm, in resonance with the Nd(3+) transition (4)I9/2 → (4)F5/2. Besides the observation of the RL emission at 1062 nm, self-converted second-harmonic at 531 nm, and self-sum-frequency generated emission at 459 nm due to the RL and the excitation laser at 806 nm, are reported. Additionally, second-harmonic of the excitation laser at 403 nm was generated. These results exemplify the first multi-wavelength source of radiation owing to nonlinear optical effect in a Nd(3+) doped crystalline powder RL. Contrary to the RLs based on dyes, this multi-wavelength light source can be used in photonic devices due to the large durability of the gain medium.

References

Nov 13, 2007·Physical Review Letters·Christiano J S de MatosCid B de Araújo
Jul 1, 2010·Optics Express·Jiyang WangMinhua Jiang
Mar 30, 2011·Optics Express·Marcos A S de OliveiraYounes Messaddeq
Jul 31, 2013·Physical Review Letters·Thomas HischStefan Rotter
Oct 10, 2013·Optics Letters·I IparraguirreN Hakmeh
Jan 1, 2012·Nature Photonics·Brandon ReddingHui Cao
Jul 12, 2014·Nature Communications·Brett H HokrVladislav V Yakovlev
Aug 13, 2014·Proceedings of the National Academy of Sciences of the United States of America·Brett H HokrMarlan O Scully
Jan 15, 2015·Nature Communications·N GhofranihaC Conti

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