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Autor:
Gerhard Seifert, M. Kaempfe, Frank Syrowatka, Catalin Harnagea, Dietrich Hesse, Heinrich Graener
Publikováno v:
Applied Physics A. 81:799-803
Using femtosecond laser pulses (150 fs duration at λ=400 nm) for ablation experiments on glass samples with and without enclosed silver nanoparticles, characteristic sub-micrometer surface topologies are observed on the flat bottom of the ablation c
Autor:
Heinrich Graener, K.-J. Berg, M. Kaempfe, G. von Plessen, Samuel Gresillon, Gunnar Berg, Jochen Feldmann, Michael Wulff, S. Kürbitz, Anton Plech
Publikováno v:
Europhysics Letters (EPL). 61:762-768
The lattice expansion and relaxation of noble-metal nanoparticles heated by intense femtosecond laser pulses are measured by pump-probe time-resolved X-ray scattering. Following the laser pulse, shape and angular shift of the (111) Bragg reflection f
Publikováno v:
The European Physical Journal D. 16:237-240
Glass containing spherical silver nanoparticles has been irradiated with single, intense, ultrashort laser pulses, with a wavelength corresponding to the surface plasmon resonance of the particles. After irradiation with linear polarization, dichrois
Publikováno v:
Applied Physics B: Lasers and Optics. 73:355-359
By repetitive irradiation of pico- or femtosecond laser pulses on glasses containing silver nanoparticles, dichroitic areas can be produced with different optical properties depending on the actual irradiation parameters. This effect, which is nanosc
Publikováno v:
Applied Physics B. 71:795-800
Single-color femtosecond pump-probe experiments were performed to investigate the time dependence of laser-induced ultrafast desorption and deformation processes of silver nanoparticles in glass. After laser excitation at wavelengths close to the sur
Publikováno v:
The Journal of Physical Chemistry B. 104:11847-11852
Persistent form modifications of silver nanoparticles in glass and the resulting dichroitic color changes induced by irradiation of a single intense femtosecond laser pulse were studied by means of high-resolution electron microscopy and spatially re
Publikováno v:
ChemInform. 25
Publikováno v:
ChemInform. 25
Publikováno v:
Applied Physics Letters. 74:1200-1202
Irradiating intense femtosecond laser pulses on a glass sample containing silver nanoparticles results in permanent sample color changes if the laser wavelength is in the region of the particles’ surface plasmon resonance. In particular, even a sin