Search Results - "Messias, D.N"

Thermal lens and Z-scan measurements: Thermal and optical properties of laser glasses – A review by Jacinto, C., Messias, D.N., Andrade, A.A., Lima, S.M., Baesso, M.L., Catunda, T.

“…In this paper, the application of thermal lens and Z-scan techniques to the study of the thermo-optical and spectroscopic properties of solid-state laser…”
Get full text

Thermo-optical properties of Nd3+ doped phosphate glass determined by thermal lens and lifetime measurements by Martins, V.M., Messias, D.N., Doualan, J.L., Braud, A., Camy, P., Dantas, N.O., Catunda, T., Pilla, V., Andrade, A.A., Moncorgé, R.

“…In this paper the Normalized Lifetime Thermal Lens technique was applied to a set of Nd-doped phosphate samples in order to obtain its thermal and optical…”
Get full text

Thermal lens and non-linear optical absorption study of a-SiH films by Messias, D.N., Zanatta, A.R., Catunda, T.

“…Thermal effects on optical properties and non-linear optical absorption have been studied in hydrogenated amorphous silicon films using dual beam thermal lens…”
Get full text

Nd3+ high order electrical susceptibility induced by CdS nanocrystals in a phosphate glass matrix by Camilo, Nilmar S., Filho, José C.S., Pilla, V., Messias, D.N., Silva, Aniele C.A., Dantas, Noelio O., Andrade, Acácio A.

“…•Discrimination between thermal and populations effects.•Nonlinear optical properties of Nd/CdS phosphate glass matrix.•Third and fifth order optical…”
Get full text

Temperature-dependence on the lifetime of Nd3+-doped phosphate glass by Filho, J.C., Messias, D.N., Pilla, V., Silva, A.C., Dantas, N.O., Andrade, A.A.

“…The temperature dependence of the photoluminescence spectra and the lifetime of a phosphate glass (P2O5–Al2O3–Na2O–K2O) doped with different concentrations of…”
Get full text

Optical characterization of X-Ray irradiated CdSe/ZnS quantum dots embedded in polymeric resins for dosimetry applications by de Oliveira, M.G., Francisco, M.F.F., de Lima, S.R., Guarany, C.A., Gonçalves, A.A., Andrade, A.A., Messias, D.N., Pilla, V.

“…In this work, polymeric resins doped with CdSe/ZnS quantum dots (QDs) were prepared and irradiated with ionizing radiation (X-ray) by using a linear…”
Get full text

Photon migration at multiple frequencies in YLiF 4:Nd 3+ crystal by do Monte, A.F.G., Messias, D.N.

“…A spatially resolved microluminescence technique was used to measure the spatial distribution of emitted light and photon propagation in Nd 3+-doped YLiF 4…”
Get full text

Thermal conductivity of Nd3+ and Yb3+ doped laser materials measured by using the thermal lens technique by Martins, V.M., Brasse, G., Doualan, J.L., Braud, A., Camy, P., Messias, D.N., Catunda, T., Moncorgé, R.

“…•Thermal properties of Nd3+ and Yb3+ doped materials were studied by the Thermal Lens technique.•Experimental setup and data analysis are simpler than in…”
Get full text

Spatial and temporal observation of energy transfer processes in Pr-doped phosphate glasses by Martins, V.M., Azevedo, G.A., Andrade, A.A., Messias, D.N., do Monte, A.F.G., Dantas, N.O., Pilla, V., Catunda, T., Braud, A., Moncorgé, R.

“…•The spatial distribution of emitted light and photon propagation were measured.•The measurements were made into different Pr3+ doped phosphate matrices.•A…”
Get full text

Thermal and optical properties of Yb3+-and Nd3+-doped phosphate glasses determined by thermal lens technique by MESSIAS, Djalmir N, JACINTO, Carlos, BELL, Maria Jose V, CATUNDA, Tomaz

“…The advantages to obtain fluorescence quantum efficiency using the TL technique, mainly in Yb3+ doped materials, which are normally overestimated due to…”
Get full text

Energy transfer upconversion on neodymium doped phosphate glasses investigated by Z-scan technique by Lima, W.J., Martins, V.M., Monte, A.F.G., Messias, D.N., Dantas, N.O., Bell, M.J.V., Catunda, T.

“…•We used the well known Z-scan technique to investigate an energy transfer process.•Experimental setup and data analysis are simpler than in conventional…”
Get full text

Thermal and Optical Properties of }^- and }^-Doped Phosphate Glasses Determined by Thermal Lens Technique by Messias, D.N., Jacinto, C., Bell, M.J.V., Catunda, T.

“…In this work, we study the thermal and optical properties of ion-doped phosphates glasses using the thermal lens (TL) technique. Three samples were…”
Get full text

Photon migration at multiple frequencies in YLiF4:Nd3+ crystal by DO MONTE, A. F. G, MESSIAS, D. N

Get full text

Thermal lens study of PbO–Bi2O3–Ga2O3–BaO glasses doped with Yb3 by Kassab, L.R.P., Del Cacho, V.D., Bell, M.J.V., Messias, D.N., de Oliveira, S.L., Catunda, T.

“…The aim of this paper is to present a study of the thermal lens technique in quantifying the thermo optical coefficients: ds/dT (optical path change with…”
Get full text

Electronic and thermal refractive index variation in Yb3+-doped glass by Messias, D.N., Bell, M.J.V., Catunda, T.

“…Electronic and thermal lineshape were determined by thermal lens and Z-scan spectroscopy in QX/Yb 3+ -doped phosphate glass. Several optical and photothermal…”
Get full text

Blue energy upconversion emission in thulium-doped-SiO2-P2O5 channel waveguides excited at 1.064 [mu]m by Messias, D.N, Vermelho, M.V.D, de Araujo, M.T, Gouveia-Neto, A.S, Aitchison, J.S

Get full text

Blue energy upconversion emission in thulium-doped-SiO/sub 2/-P/sub 2/O/sub 5/ channel waveguides excited at 1.064 μm by Messias, D.N., Vermelho, M.V.D., de Araujo, M.T., Gouveia-Neto, A.S., Aitchison, J.S.

Get full text

Blue energy upconversion emission in thulium-doped-SiO/sub 2/-P/sub 2/O/sub 5/ channel waveguides excited at 1.064 /spl mu/m by Messias, D.N., Vermelho, M.V.D., de Araujo, M.T., Gouveia-Neto, A.S., Aitchison, J.S.

“…Blue energy upconversion emission in Tm/sup 3+/-doped SiO/sub 2/-P/sub 2/O/sub 5/ channel waveguides off-resonance pumped by infrared radiation is reported…”
Get full text

Determination of Auger upconversion parameter by thermal lens and Z-scan techniques: A comparison by Jacinto, C., Messias, D.N., Catunda, T.

“…The Z-scan and Thermal Lens techniques have been used to obtain the Auger upconversion parameter in Nd 3+ -doped materials. A comparison between these methods…”
Get full text

Monte Carlo study of the critical behavior of a diffusive epidemic process by Fulco, U.L, Messias, D.N, Lyra, M.L

“…We perform Monte Carlo simulations of a symmetric 1D diffusive epidemic propagation process. The system presents a continuous phase transition between a…”
Get full text