Two-color random laser based on a Nd3þ doped crystalline powder

Maia, Lauro June Queiroz; Riquelme Pincheira, Pablo Isaias; Gomes, Anderson Stevens Leonidas; Araújo, Cid Bartolomeu de

Two-color random laser based on a Nd3þ doped crystalline powder

Data

2017

Autores

Maia, Lauro June Queiroz

Riquelme Pincheira, Pablo Isaias

Maia, Lauro June Queiroz

Gomes, Anderson Stevens Leonidas

Araújo, Cid Bartolomeu de

Resumo

Two-color random laser (RL) emission is demonstrated for the first time in a neodymium (Nd3þ) doped nanocrystalline powder. Emissions at 1063.5 and 1065.1 nm, due to the Nd3þ transition 4 F3/2 -4 I11/2 in NdAl3(BO3)4 nanocrystals, were observed by exciting the powder in resonance with the Nd3þ transition 4 I9/2-4 F5/2, at 811 nm. The dual-wavelength emission is attributed to the radiative decay from two nonequivalent site-symmetries occupied by the Nd3þ in the NdAl3(BO3)4 crystalline structure. The behavior of the Nd3þ emissions versus the samples' temperature indicates the possibility of the RL application as a near infrared optical sensor with a large thermal sensitivity of 0.020 °C1

Palavras-chave

Random laser, Neodymium ions, Bichromatic emission, Optical thermometry

Citação

MOURA, André L. et al. Two-color random laser based on a Nd3+ doped crystalline powder. Journal of Luminescence, Amsterdam, v. 181, p. 44-48, 2017. DOI: 10.1016/j.jlumin.2016.09.002. Disponível em: https://www.sciencedirect.com/science/article/pii/S0022231316306524. Acesso em: 1 fev. 2024.