Tunable ultraviolet and blue light generation from Nd:YAB random laser bolstered by second-order nonlinear processes
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2016
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Ultraviolet and blue light were obtained by nonlinear frequency conversion in a random laser (RL)
based on Nd0.10Y0.90Al3(BO3)4 nanocrystalline powder. RL operation at 1062 nm, due to the 4F3/2 → 4I11/2
transition of neodymium ions (Nd3+), was achieved by exciting the Nd3+ with a tunable beam from 680
to 920 nm covering the ground state absorption transitions to the 4F9/2, (4F7/2,4S3/2), (4F5/2,2H9/2), and 4F3/2
states. Light from 340 to 460 nm was obtained via the second-harmonic generation of the excitation
beam while tunable blue light, from 417 to 486 nm, was generated by self-sum-frequency mixing
between the excitation beam and the RL emission.
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MOURA, André L.; CARRENO, Sandra J. M.; PINCHEIRA, Pablo I. R.; FABRIS, Zanine V.; MAIA, Lauro J. Q.; GOMES, Anderson S. L.; ARAUJO, Cid B. de. Tunable ultraviolet and blue light generation from Nd:YAB random laser bolstered by second-order nonlinear processes. Scientific Reports, London, v. 6, e 27107, 2016. DOI: 10.1038/srep27107. Disponível em: https://pubmed.ncbi.nlm.nih.gov/27250647/. Acesso em: 28 abr. 2023.