Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Ernande B. Costa"'
Autor:
J. F. Nascimento, Younes Messaddeq, A. S. Gouveia-Neto, Sidney José Lima Ribeiro, A. C. M. Afonso, Ernande B. Costa, L. A. Bueno
Publikováno v:
Journal of Non-Crystalline Solids. 354:509-514
Energy-transfer excited upconversion luminescence in Ho 3+ /Yb 3+ - and Tb 3+ /Yb 3+ -codoped PbGeO 3 –PbF 2 –CdF 2 glass and glass–ceramic under infrared excitation is investigated. In Ho 3+ /Yb 3+ -codoped samples, green (545 nm), red (652 nm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cad3c2971475064ceed02a26ed29e079
https://doi.org/10.1016/j.jnoncrysol.2007.07.055
https://doi.org/10.1016/j.jnoncrysol.2007.07.055
Autor:
Luciano A. Bueno, Renata O. Domingues, Artur S. Gouveia-Neto, Wellington S. Souza, Ernande B. Costa
Publikováno v:
SPIE Proceedings.
Color tunable wide gamut light covering the greenish, yellow-green, yellow, orange, and reddish tone chromaticity region in europium/erbium co-doped lead-cadmium-germanate PbGeO3:PbF2:CdF2 glass phosphor is presented. The phosphors were synthesized,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e11da3c1a0173cf97b6ba15be7c94a6
https://doi.org/10.1117/12.2001118
https://doi.org/10.1117/12.2001118
Autor:
Ernande B. Costa, Elias A. Silva, Artur S. Gouveia-Neto, Lilia Willadino, Terezinha J. R. Câmara, Ronaldo A. Oliveira, Patricia Carneiro da Cunha
Publikováno v:
SPIE Proceedings.
LED-induced chlorophyll fluorescence spectral signatures from Saccharum officinarum leaves are employed to evaluate the effect of water deficit upon the plant growing process. The chlorophyll fluorescence spectral analysis is a nondestructive and non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c55d4f882ac81423b253e8bae032fde
https://doi.org/10.1117/12.904921
https://doi.org/10.1117/12.904921
Autor:
Lilia Willadino, Ernande B. Costa, Ronaldo A. Oliveira-Filho, Luciana M. H. Silva, Patricia Carneiro da Cunha, T. R. Camara, Elias Arcanjo da Silva-Jr, A. S. Gouveia-Neto
In the past few decades there has been a widespread scientific and technological interest in laser-induced remote techniques to monitor the status of terrestrial vegetation (Svanberg, 1995). The most employed nowadays are those which exploit the fluo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae88bd2a930c3a76a3f41b1cf0514d04
https://doi.org/10.5772/16595
https://doi.org/10.5772/16595
Autor:
Ernande B. Costa, A. S. Gouveia-Neto, Terezinha J. R. Câmara, Patricia Carneiro da Cunha, Lilia Willadino, Rafael A. P. Oliveira, Elias A. Silva, Diógenes S. Moura
Publikováno v:
Journal of fluorescence. 22(2)
LED induced chlorophyll fluorescence analysis is employed to investigate the effect of water deficit and salt stress upon the growth process of Jatropha curcas L.. Red(Fr) and far-red(FFr) chlorophyll fluorescence around 685 nm and 735 nm, respective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b1cada9e6a0d1c2260fd4d4a9fe5f20
https://pubmed.ncbi.nlm.nih.gov/22051983
https://pubmed.ncbi.nlm.nih.gov/22051983
Autor:
Andréa F. da Silva, Elias A. Silva, Diógenes S. Moura, Luciano A. Bueno, Artur S. Gouveia-Neto, Eduardo N. Azevedo, Ernande B. Costa
Publikováno v:
SPIE Proceedings.
In this report the optical properties and energy-transfer frequency upconversion luminescence of Er 3+ /Yb 3+ -codoped laponite-derived powders under 975 nm infrared excitation is investigated. The 75%(laponite):25%(PbF 2 ) samples doped with erbium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5b165b632e2d2ffe78b2be92993ca7e
https://doi.org/10.1117/12.872761
https://doi.org/10.1117/12.872761
Autor:
Terezinha J. R. Câmara, Patricia Carneiro da Cunha, Elias A. Silva, Lilia Willadino, Ronaldo A. Oliveira, Ernande B. Costa, Artur S. Gouveia-Neto
Publikováno v:
Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues IX.
Light-emitting-diode induced chlorophyll fluorescence analysis is employed to investigate the effect of water and salt stress upon the growth process of physicnut(jatropha curcas) grain oil plants for biofuel. Red(Fr) and far-red (FFr) chlorophyll fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc12359b51760fe39347e72c3be58f05
https://doi.org/10.1117/12.872991
https://doi.org/10.1117/12.872991
Publikováno v:
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XV.
Rare-earth doped oxyfluoride 75SiO 2 :25PbF 2 nano-structured phosphors for white-light-emitting diodes were synthesized by thermal treatment of precursor sol-gel derived glasses. Room temperature luminescence features of Eu 3+ , Sm 3+ , Tb 3+ , Eu 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57ded654429d2d908ebb269895dcf348
https://doi.org/10.1117/12.873185
https://doi.org/10.1117/12.873185
Autor:
Luciano A. Bueno, Terezinha J. R. Câmara, Manuela Maria Cavalcante Granja, Ernande B. Costa, Lilia Willadino, Elias A. Silva, Artur S. Gouveia-Neto, Maria Jaislanny Lacerda e Medeiros, Luciana M. H. Silva
Publikováno v:
SPIE Proceedings.
Laser induced fluorescence is exploited to evaluate the effect of abiotic stresses upon the evolution and characteristics of in vivo chlorophyll emission spectra of leaves tissues of brazilian biofuel plants species(Saccharum officinarum and Jatropha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::425987d40fe47752ad5d991949becc32
https://doi.org/10.1117/12.839462
https://doi.org/10.1117/12.839462
Autor:
Ernande B. Costa, Luciano A. Bueno, Elias A. Silva, A. S. Gouveia-Neto, Diógenes S. Moura, Andréia F. da Silva
Publikováno v:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX.
There has recently been a great deal of interest in searching for new materials for application as hosts in infrared-tovisible light upconverters or optical amplifiers based upon rare-earth doped systems. Some of their many applications include: colo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f9ae057a65531341d0cbda1b154637f
https://doi.org/10.1117/12.840406
https://doi.org/10.1117/12.840406