6814 Suchergebnisse für: „“
Rapid lifetime testing of fused silica for DUV laser applications
Lifetime testing of fused silica's absorption degradation upon 193 nm is shortened by enhancing the twophoton absorption (TPA) induced generation of E′ and NBOH defect centers per laser pulse. Increasing...
PublikationenDistinction of Nucleobases – a Tip-Enhanced Raman Approach
The development of novel DNA sequencing methods is still one of the ongoing challenges in various fields of research to address the demand for sequence information. However, many of these techniques rely...
PublikationenSurface-micromachined thermoelectric infrared focal-plane array with high detectivity for room temperature operation
Thermopile detectors are particularly well suited for spectral imaging, space science applications, track recording, presence detection and applications with low energy consumption. The purpose of this...
PublikationenComparison of femtosecond laser-induced damage on unstructured vs. nanostructured Au-targets
The combination of high-eld physics with nano-plasmonics has proven to be feasible in producing high harmonics of intense laser radiation from noble gases, assisted by the eld-enhancement effect in the...
PublikationenDiffusion in Yb2O3–Al2O3–SiO2 glass
The diffusion of aluminium and ytterbium in Yb2O3–Al2O3–SiO2 glasses has been investigated between 1700 and 2000°C with concentrations of up to 3 mol% Al2O3 and 0·8 mol% Yb2O3. The diffusion coefficient...
PublikationenFiber waveguide arrays as model system for discrete optics
Optical waveguide arrays consisting of a two-dimensional arrangement of weakly coupled waveguides represent the basis of the new research field of discrete optics. For studying the nonlin-ear pulse dynamics,...
PublikationenSpatial manipulation of magnetic damping in ferromagnetic-antiferromagnetic films by ion irradiation
The static and dynamic magnetic properties of ferromagnetic-antiferromagnetic thin film stacks are manipulated in a controlled way by local ion treatment. Low fluence Ni-ion irradiation is used to adjust...
PublikationenPicosecond kinetic confirmation of overlapping Ca cluster and MNa absorption bands in UV grade CaF2
The ArF laser induced absorption feature between 450 and 700 nm observed in the bulk of mono crystalline calcium fluoride (CaF2) upon prolonged 193 nm irradiation is shown to have two origins: The first...
PublikationenReal-time determination of laser beam quality by modal decomposition
We present a real-time method to determine the beam propagation ratio M2 of laser beams. The all-optical measurement of modal amplitudes yields M2 parameters conform to the ISO standard method. The experimental...
PublikationenEvolution dynamics of discrete-continuous light bullets
We investigate experimentally and numerically the propagation of light bullets (LBs) excited in two-dimensional fiber arrays. The combination of nonlinear self-frequency shift, wavelength dependence of...
Publikationen