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Journals and Conferences
Some remarks are made on the validity of a commonly used analytical model based on the rigorous coupled wave analysis to describe the optical response of one-dimensional metallic gratings.
For an isolated quantum particle, such as an electron, the orbital (L) and spin (S) magnetic moments can change provided that the total angular momentum of the particle is conserved. In condensed… (More)
Femtosecond laser pulses can be used to induce ultrafast changes of the magnetization in magnetic materials. However, one of the unsolved questions is that of conservation of the total angular… (More)
We investigate the influence of the core d-electrons on the spectral optical response of arrays of sub-wavelength holes near the transition from the d-band to the Fermi level of noble metals… (More)
Using femtosecond laser pulses, we have observed in real time the coherent motion of nanocrystals self-assembled in a three-dimensional (3D) supra-crystal.
We study the trajectory of the magnetization in cobalt nanoparticles using femtosecond pulses. We show that the initial pathway of the magnetization vector is mostly determined by the magnetic… (More)
Using femtosecond optical spectroscopy, we study the ultrafast dynamics of the surface plasmon polaritons in gold arrays of subwavelength holes. A large time dependent spectral broadening and shift… (More)
We have investigated the transmission dynamics of gold nanostructures in the femtosecond regime. We show the importance of electron relaxation at the Fermi level for the dynamical behavior of the… (More)
We report on the observation of an ultrafast modification of /spl sim/30% in the enhanced transmission through sub-wavelength nanometric apertures in metallic films. It demonstrates the feasibility… (More)
A precise control and understanding of the magnetization dynamics of nanostructures is an important topic in applied nanosciences. Herein, we perform such control by annealing crystalline… (More)