Showing papers by "Oscar E. Martínez published in 1996"
TL;DR: In this paper, the properties of a liquid crystal television to be used as a spatial modulator of the polarization of a laser beam are studied and a new model is proposed that takes into account additional birefringence effects resulting from border effects near the television windows.
Abstract: The properties of a liquid crystal television to be used as a spatial modulator of the polarization of a laser beam are studied. It is found that the model most commonly used for the display description does not adequately reproduce the transmission through crossed polarizers. A new model is proposed that takes into account additional birefringence effects resulting from border effects near the television windows. With this correction, the anomalous behavior of the television is explained and the throughput for different configurations is properly predicted.
60 citations
TL;DR: A soft-x-ray Mach-Zehnder interferometer configuration that makes use of the time delay introduced by diffraction gratings to conduct single-shot measurements of the linewidth of soft- x-ray laser amplifiers is proposed and analyzed.
Abstract: A soft-x-ray Mach–Zehnder interferometer configuration that makes use of the time delay introduced by diffraction gratings to conduct single-shot measurements of the linewidth of soft-x-ray laser amplifiers is proposed and analyzed. The scheme was experimentally demonstrated in the near-IR region of the spectrum by measurement of the mode separation of a semiconductor laser. A symmetric configuration with compensated time delays that can be implemented for plasma diagnostics and for evaluating soft-x-ray optics is also discussed.
26 citations
TL;DR: In this article, the hindering of crystallization upon the addition to metal alloys of perturbing nanoparticles is theoretically analyzed, and it is shown that the effect of the particles is to add a surface energy term to the Gibbs energy of formation of the crystalline nucleus.
01 Jan 1996
TL;DR: In this article, a new method for measuring ultrashort light pulses in the frequency domain, which even allows real-time measurements of the phase, is described. But this method is not suitable for the measurement of light pulses with high frequency.
Abstract: The object of this work is to describe a new method for the measuring of ultrashort light pulses in the frequency domain, which even allows real time measurements of the phase.