Zobrazeno 1 - 10
of 469
pro vyhledávání: '"Niklaus Ursus Wetter"'
Autor:
Erika Michele dos Santos ARAUJO, Cristina de Mattos Pimenta VIDAL, Min ZHU, Jeffrey A. BANAS, Anderson Zanardi de FREITAS, Niklaus Ursus WETTER, Adriana Bona MATOS
Publikováno v:
Journal of Applied Oral Science, Vol 32 (2024)
Abstract Creating artificial caries-like lesions that mimic the complex changes observed in natural caries is essential for properly evaluating new strategies, dental materials, and devices designed to arrest their progression and avoid more costly a
Externí odkaz:
https://doaj.org/article/f7369bd15e94470daee2e305e6c3a1db
Autor:
Marcos Vinicius de Morais Nishimura, Augusto Anselmo Amaro, Camila Dias da Silva Bordon, Jessica Dipold, Niklaus Ursus Wetter, Luciana Reyes Pires Kassab
Publikováno v:
Micromachines, Vol 14, Iss 11, p 2078 (2023)
This study introduces a novel method for producing Ag nanoclusters (NCs) within GeO2-PbO glasses doped with Tm3+ ions. Sample preparation involved the melt-quenching method, employing adequate heat treatment to facilitate Ag NC formation. Absorption
Externí odkaz:
https://doaj.org/article/b0fba7d02940401cbab3f6bf829e59b0
Publikováno v:
Photonics, Vol 10, Iss 10, p 1146 (2023)
We report a Nd:YLF laser, side-pumped by a diode-stack at 797 nm with 1545 W peak power, resulting in triple-wavelength emission at 1314 nm, 1053 nm, and 1047 nm. The resonator is capable of emitting each wavelength separately as well as any combinat
Externí odkaz:
https://doaj.org/article/1684b65be663460d95046f3eae74997e
Autor:
Augusto Anselmo Amaro, Guilherme Rodrigues da Silva Mattos, Marcos Vinicius de Morais Nishimura, Jessica Dipold, Niklaus Ursus Wetter, Luciana Reyes Pires Kassab
Publikováno v:
Nanomaterials, Vol 13, Iss 7, p 1177 (2023)
This work investigates the optical properties of Yb3+ ions doped GeO2-PbO glasses containing Ag nanoclusters (NCs), produced by the melt-quenching technique. The lack in the literature regarding the energy transfer (ET) between these species in these
Externí odkaz:
https://doaj.org/article/88c6c1d8107b49b893e1f309dba33c5f
Publikováno v:
Optics & Laser Technology. 162:109257
Publikováno v:
2022 SBFoton International Optics and Photonics Conference (SBFoton IOPC).
Autor:
Viktor A. Ermakov, Ernesto Jimenez-Villar, Francisco C. Marques, Weliton S. Martins, Niklaus Ursus Wetter
Publikováno v:
Nanoscale. 13:6417-6425
We study the light–matter coupling by Raman scattering in colloidal suspensions composed by core–shell TiO2@Silica (Rutile@Silica) nanoparticles suspended in ethanol and water solutions. Strong enhancement of the Raman signal per particle is obse
Publikováno v:
Journal of the Optical Society of America A. 40:C108
The photoelastic dispersion coefficient represents the relationship between stress and the differences in refractive indices in a birefringent material. However, determining the coefficient using photoelasticity is challenging, as it is difficult to
Publikováno v:
Applied Optics. 62:C49
Three laser resonators are demonstrated emitting at 1053 nm and pumped at 797 nm by volume Bragg grating-equipped diodes, achieving the highest reported efficiencies for Nd:YLF in a four-level system, to the best of our knowledge. A peak output power
Autor:
Allan Bereczki, Niklaus Ursus Wetter
Publikováno v:
Applied Optics. 62:C38
When considering dynamically stable resonators, ring lasers are good choices because they have a stability interval that is twice as large as that of linear resonators and sensitivity to misalignment decreasing with pump power; however, the literatur