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Mostrando ítems 31-40 de 911
Bubbling transition to spatial mode excitation in an extended dynamical system
(ELSEVIER SCIENCE BV, 2009)
We investigated the transition to spatio-temporal chaos in spatially extended nonlinear dynamical systems possessing an invariant subspace with a low-dimensional attractor. When the latter is chaotic and the subspace is ...
Excitation of a Primordial Cold Asteroid Belt as an Outcome of Planetary Instability
(Iop Publishing Ltd, 2018-09-01)
The main asteroid belt (MB) is low in mass but dynamically excited. Here we propose a new mechanism to excite the MB during the giant planet (the Nice model) instability, which is expected to feature repeated close encounters ...
Time-resolved random laser spectroscopy of inhomogeneously broadened systems
(Wiley-Blackwell, 2014-05-01)
The understanding of energy transfer processes in biological systems occurring among optical centres which exhibit inhomogeneously broadened spectral bands is of paramount importance to determine time constants and spatial ...
Excited-state vibrational dynamics toward the polaron in methylammonium lead iodide perovskite
(Nature Publishing Group, 2018)
Hybrid organic-inorganic perovskites have attractive optoelectronic properties including exceptional solar cell performance. The improved properties of perovskites have been attributed to polaronic effects involving ...
Non-radiative relaxation of photoexcited chlorophylls: Theoretical and experimental study
(Nature Publishing Group, 2015-09)
Nonradiative relaxation of high-energy excited states to the lowest excited state in chlorophylls marks the first step in the process of photosynthesis. We perform ultrafast transient absorption spectroscopy measurements, ...
Phonon Bottleneck and Long-Lived Excited States in pi-Conjugated Pyrene Hoop
(Royal Society of Chemistry, 2017-03)
In the last decade, recent synthetic advances have launched carbon-based π-conjugated hoops to the forefront of theoretical and experimental nvestigation not only for their potential use as bottom-up templates for carbon ...
Investigation of ground and excited state photophysical properties of gadolinium phthalocyanine
(ElsevierAmsterdam, 2014-02)
In this present work, we investigated the singlet excited state absorption (ESA) spectrum and intersystem crossing dynamics of gadolinium phthalocyanine (GdPc) in toluene. For that, we employed the femtosecond wavelength-tunable ...
Excited state dynamics of the Ho3+ ions in holmium singly doped and holmium, praseodymium-codoped fluoride glasses
(American Institute of Physics (AIP), 2014)
Time-resolved random laser spectroscopy of inhomogeneously broadened systems
(Wiley-Blackwell, 2014)
Influence of ideal and non-ideal excitation sources on the dynamics of a nonlinear vibro-impact system
(Polish Soc Theoretical & Applied Mechanics, 2014)