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Mostrando ítems 1-10 de 12
A Real-Time Time-Dependent Density Functional Tight-Binding Implementation for Semiclassical Excited State Electron-Nuclear Dynamics and Pump-Probe Spectroscopy Simulations
(American Chemical Society, 2020-07)
The increasing need to simulate the dynamics of photoexcited molecular systems and nanosystems in the subpicosecond regime demands new efficient tools able to describe the quantum nature of matter at a low computational ...
Ultrafast dynamics of excited carriers in GaAs by a time-resolved differential reflectivity
(Universidade Federal de Juiz de Fora (UFJF)BrasilICE – Instituto de Ciências ExatasPrograma de Pós-graduação em FísicaUFJF, 2021)
Viscoelastic properties and efficient acoustic damping in confined polymer nano-layers at GHz frequencie
(Nature Publishing Group, 2016-09-16)
We investigate the viscoelastic properties of confined molecular nano-layers by time resolved optical pump-probe measurements. Access to the elastic properties is provided by the damping time of acoustic eigenmodes of thin ...
Optical properties of semiconductors via pump-probe experiments: statistical-thermodynamical approach, hot plasma and coherent phonon states
(Iop Publishing LtdBristolInglaterra, 2000)
Interplay between direct gap renormalization and intervalley scattering in AlxGa1-xAs near the Gamma-X crossover
(Pergamon-elsevier Science LtdOxfordInglaterra, 2002)
Espectroscopia ultra-rápida e estudos de dinâmica eletrônica em nano-estruturas plasmônicas
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE FÍSICAPrograma de Pós-Graduação em FísicaUFMG, 2019-12-16)
The study of photoexcited electron and plasmon dynamics in nanomaterials presents experimental challenges due to the very short times (femtoseconds) involved in the early stages of energy relaxation. In the last decades ...
Construção e caracterização de fonte sintonizável de pulsos ultracurtos no infravermelho próximo baseada em amplificadores paramétricos
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Fisica, 2019)