@ARTICLE {30317,
author={Ana M. Rocha and A. I.  Machado and T. Almeida and J.  Vieira and M. Facão},
doi={10.3390/s20226409},
journal={Sensors},
title={Analysis of Long Period Gratings Inscribed by CO2 Laser Irradiation and Estimation of the Refractive Index Modulation},
year={2020},
month={November},
volume={20},
number={22},
pages={6409-6409},
ISSN={}
}