By Johannes Schötz

ISBN-10: 3658137126

ISBN-13: 9783658137120

ISBN-10: 3658137134

ISBN-13: 9783658137137

Johannes Schötz provides the 1st measurements of optical electro-magnetic near-fields round nanostructures with subcycle-resolution. the power to degree and comprehend light-matter interactions at the nanoscale is a crucial part for the advance of light-wave-electronics, the regulate and guidance of electron dynamics with the frequency of sunshine, which can provide a speed-up by means of numerous orders of significance in comparison to traditional electronics. The experiments awarded the following on steel nanotips, known in experiments and purposes, don't merely reveal the feasibility of attosecond streaking as a special software for basic stories of ultrafast nanophotonics but in addition characterize a primary very important step in the direction of this goal.

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Additional info for Attosecond Experiments on Plasmonic Nanostructures: Principles and Experiments

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Since the general description [54] depends on five parameters, energy E, depth d, angle to surface α and scattering angles θ and φ, and leads to expressions which are very hard to evaluate, we will use a simplified description, given by [63]. In this model it is assumed, that the region where electrons couple to the surface modes is usually small ( see Fig. 9 a)).

1 shows a schematic overview of the lasersystem used in our experiments. The lasersource is as commercially available chirped-pulse amplifier (FEMTOPOWER Compact Pro). 5 nJ pulses with a duration of 7 fs covering a spectral range from 620 nm to 1000 nm at a repetition rate of 70 MHz. It is equipped with a module for CEP-stabilization (see subsequent section). A pulse-picker sends pulses at a repetition rate of 1 kHz to the subsequent amplification stage. Then the pulses are sent through a SF-57 glass stretcher where they are elongated to around 10 ps by introducing negative chirp.

4: The kinematics of inelastic scattering. 3) Where E (k) and E1 (k1 ) is the initial and final energy (wavevector) of the electron. Q is the energy loss and q the wavevector transfer. 4). To further simplify the expression, we have to make an approximation about the dispersion relation. 2 Inelastic Scattering 43 By taking the total differential of Eq. 2 Theory To arrive at the expression for the inelastic scattering cross section within the semiclassical framework some derivation is necessary, which is usually not found in the literature.

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Attosecond Experiments on Plasmonic Nanostructures: Principles and Experiments by Johannes Schötz


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