Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Jehan F. Nascimento"'
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 20, Iss 3, Pp 585-599 (2021)
Abstract This article presents the proposed structure and the simulation results from analytical and numerical modeling of two corrosion sensor elements in D-shaped optical fiber: one based on the lossy mode resonance (LMR) effect and the other based
Externí odkaz:
https://doaj.org/article/a071efb8675f4e3a85e513470e864fa8
Autor:
Joaquim F. Martins-Filho, Eliel Cipriano, Isnaldo J. S. Coêlho, Jehan F. Nascimento, Marcionilo J. Silva
Publikováno v:
Sensors, Vol 12, Iss 3, Pp 3438-3448 (2012)
We present two configurations of an amplified fiber-optic-based corrosion sensor using the optical time domain reflectometry (OTDR) technique as the interrogation method. The sensor system is multipoint, self-referenced, has no moving parts and can m
Externí odkaz:
https://doaj.org/article/9c4d4f4e138f4a4e84f98d761de80281
Autor:
Marianne S. Peixoto e Silva, Henrique P. Alves, Hebio Júnior B. Oliveira, Luis Henrique V. Leão, Jehan F. Nascimento, Joaquim F. Martins-Filho
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. :1-1
Autor:
Jehan F. Nascimento, Sidney José Lima Ribeiro, Younes Messaddeq, Ernande B. Costa, Artur S. Gouveia-Neto, Antônio C. M. Afonso, Luciano A. Bueno
Publikováno v:
Optical Components and Materials III.
In this report we investigate the optical properties and energy-transfer upconversion luminescence of Ho 3+ - and Tb 3+ /Yb -codoped PbGeO 3 -PbF 2 -CdF 2 glass-ceramic under infrared excitation. In Ho 3+ /Yb 3+ -codoped sample, green(545 nm), red(65