Daniel Kendji Kumada

Impact of Nd3+ doping and Au-core separation on plasmon assisted optical gain in TeO2–ZnO pedestal waveguides

Daniel Kendji Kumada, Igor Y. Abe, Marcos V.M. Nishimura, Marco I. Alayo et autres

This work extends a previous investigation on plasmon enhanced optical gain in Nd 3+ doped TeO 2 -ZnO (TZ) pedestal waveguides incorporating gold nanoparticles (Au NPs) for applications at 1064 nm. The influence of Nd 3+ concentration and the role of a …

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Guias de onda pedestal dopados com íons de Nd3+ e nanopartículas de ouro para aplicações na região do infravermelho próximo: processos de fabricação e caracterização óptica.

Daniel Kendji Kumada

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Plasmon-enhanced optical performance in S-bend pedestal-type TeO2–ZnO waveguides doped with Nd3+

Daniel Kendji Kumada, Igor Y. Abe, Thiago Vecchi Fernandes, Marcos Vinicius de Morais Nishimura et autres

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Yb3+/Tm3+/Er3+ doped TeO2-ZnO glasses: A Pathway to Visible Light Tuning for Integrated Photonics

Daniel Kendji Kumada, Beatrice Sayuri Kato, Raphael Carvalho Gonçalves, Camila D. S. Bordon et autres

This study focuses on the characterization of TeO2-ZnO samples prepared with different concentrations of rare-earth ions (Tm3+, Er3+, and Yb3+ ions) for potential appli-cations in photonics. Samples were produced with the melt-quenching technique and optical characterization, including luminescence and absorption measurements, was …

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Flexible Nd3+ doped TeO2–ZnO planar waveguide

Marcos Vinicius de Morais Nishimura, Daniel Kendji Kumada, Stefano Varas, Alessandro Chiasera et autres

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Plasmon-Enhanced Optical Performance in S-Bend Pedestal-Type Teo2-Zno Waveguides Doped with Nd3+

Daniel Kendji Kumada, Igor Y. Abe, Thiago Vecchi Fernandes, Marcos Vinicius de Morais Nishimura et autres

Plasmon-assisted upconversion thermometry in Er3+–Yb3+ co-doped Bi2O3-GeO2 glasses containing silver nanoparticles

ALBERT STEVENS REYNA OCAS, João L. Passos, Daniel Kendji Kumada, Rafael A. de Oliveira et autres

Visible light tuning with tridoped TeO2-ZnO vitreous samples for photonics

Daniel Kendji Kumada, Beatrice Sayuri Kato, Raphael de Carvalho Gonçalves, Camila D. S. Bordon et autres

This study focuses on the characterization of TeO2-ZnO samples prepared with different concentrations of rare-earth ions (Tm3+, Er3+, and Yb3+ions) for potential application in photonics. Samples were produced with the melt-quenching technique and optical characterization, including luminescence and absorption measurements, was conducted, …

Enhanced optical gain assisted by the plasmonic effects of Au nanoparticles in Nd³⁺ doped TeO₂-ZnO waveguides produced with the pedestal architecture

Daniel Kendji Kumada, Igor Y. Abe, Camila D. S. Bordon, M.I. Alayo et autres

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Influence of plasmonic and thermo-optical effects of silver nanoparticles on near-infrared optical thermometry in Nd3+-doped TeO2–ZnO glasses

Gleison S. Bezerra, Luis Reyna Ocas, Daniel Kendji Kumada, Weliton S. Martins et autres

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Pedestal architecture to manufacture TeO2-ZnO waveguides for the development of photonic devices to operate in the infrared region

Filipe de Oliveira Pereira Delboni, Daniel Kendji Kumada, M.I. Alayo, L.R.P. Kassab

The present work shows the feasibility of using the pedestal platform for the fabrication of TeO2-ZnO waveguides and demonstrates the possibility of producing passive optical devices aiming the fabrication of optical amplifiers in the future for photonic applications in the infrared region. …

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The influence of the different parameters used for the production of double line waveguides in Nd3+ doped TeO2-ZnO glasses by fs laser writing

Evellyn Santos Magalhães, Daniel Kendji Kumada, Niklaus Ursus Wetter, L.R.P. Kassab et autres

Nd3+ doped TeO2-ZnO glasses with double line waveguides produced by femtosecond (fs) laser writing technique are presented. The waveguides are written directly into these glasses using a femtosecond (fs) Ti:Sapphire laser, operating at 800 nm, delivering 30 fs pulses at 10 kHz …

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