Photonics Group

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Eletrofiação e nanofibras: fundamentos e aplicações a maior editora de publicação científica do Brasil

3-arylthioimidazo[1,2-a]pyridine derivatives: A theoretical and experimental study of its photophysical properties The optical properties of imidazo[1,2-a]pyridines possessing various arylthiol substituents at position 3 are described for the first time. Several op…

Influence of peripherical modifications in linear and nonlinear photophysical properties of imidazo[4,5-b]pyridine derivatives This study reports a wide study on linear and nonlinear optical properties of six imidazo[4,5-b]pyridines derivates. The compounds are coupled with a …

Integrating Fluorescent Nanodiamonds into Polymeric Microstructures Fabricated by Two-Photon Polymerization Nitrogen-vacancy (NV) and other color centers in diamond have attracted much attention as non-photobleaching quantum emitters and quantum sensors. Since microfabrication in bulk diamonds is technically difficult, embedding nanodiamonds with color centers into designed structures is a way to integrat...

Fabrication of micro patterns on BaTiO3:Er3+/Yb3+ perovskite films by femtosecond laser micromachining Femtosecond lasers currently show much promise as potential sources for the fabrication of optical and photonic devices, displaying high performance d…

Observation of the two-photon transition enhanced first hyperpolarizability spectra in cinnamaldehyde derivatives: A femtosecond regime study The application of nonlinear optical effects in optoelectronic devices is still scarce because the irradiance threshold necessary to induce a specific effect is

Discrimination of thermal, molecular orientation, and pure electronic refractive nonlinearities using the polarization-resolved Z-scan technique We have investigated how the polarization-resolved Z-scan technique is able to distinguish and discriminate three types of nonlinear effects—thermal, orientational, and ultrafast electronic nonlinearities—when acting simultaneously. Here employing a high-repetition-rate ultrafast laser...

Photophysical, photobiological, and biomolecule-binding properties of new tri-cationic meso-tri(2-thienyl)corroles with Pt(II) and Pd(II) polypyridyl derivatives We report the synthesis and characterization of new tri-cationic corrole derivatives, containing Pt(II) or Pd(II) complexes attached at the peripheral…

Fabrication of interdigitated electrodes of graphene oxide/silica by femtosecond laser-induced forward transfer for sensing applications Graphene-based materials, such as graphene oxide (GO), have been receiving much attention due to their graphene-like properties and compatibility with other materials. At the same time, novel print...