High-resolution wavefront sensing and aberration analysis of multi-spectral extreme ultraviolet beams

An Extreme Ultraviolet Optics-Free Spectrometer With Improved Spectral Resolution and High Signal-to-Noise Ratio

A computer model of an Extreme Ultraviolet (EUV) spectrometer based on a gas ionization chamber and on flight experience of the Optics Free Spectrometer (OFS previously flown), was built and tested with the SIMulation of IONs (SIMION) tools. Our goal in this work was to design an improved and simplified electron beam focusing system which fits the dimensions (D = 180 mm; L = 380 mm) available f...

Phase-locked, time-delayed harmonic pulses for high spectral resolution in the extreme ultraviolet.

We present experiments in the time and frequency domains aimed at confirming the measured mutual phase coherence of time-delayed, collinear harmonic pulses. We show that pairs of phase-locked harmonic pulses of medium order can be generated for peak intensities up to ~1.5 10(14)W/cm(2) in xenon, demonstrating the possibility of performing high-resolution spectroscopy in the extreme ultraviolet ...

Phase-locked, time-delayed, harmonic pulses for high spectral resolution in the extreme ultraviolet: errata.

High-resolution Fourier-transform extreme ultraviolet photoabsorption spectroscopy of 14N15N.

The first comprehensive high-resolution photoabsorption spectrum of (14)N(15)N has been recorded using the Fourier-transform spectrometer attached to the Desirs beamline at the Soleil synchrotron. Observations are made in the extreme ultraviolet and span 100 000-109 000 cm(-1) (100-91.7 nm). The observed absorption lines have been assigned to 25 bands and reduced to a set of transition energies...

Numerical resolution of large deflections in cantilever beams by Bernstein spectral method and a convolution quadrature.

The mathematical modeling of the large deflections for the cantilever beams leads to a nonlinear differential equation with the mixed boundary conditions. Different numerical methods have been implemented by various authors for such problems. In this paper, two novel numerical techniques are investigated for the numerical simulation of the problem. The first is based on a spectral method utiliz...