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On the optical analysis of the ray path-lengths in the diffraction of femtosecond XUV and soft X-ray pulses

Published online by Cambridge University Press:  09 April 2001

P. VILLORESI
P. VILLORESI
Affiliation:
Laboratorio di Elettronica Quantistica - DEI, Università degli Studi di Padova, via Gradenigo 6a, 35131 Padova, Italia and INFM-Istituto Nazionale per la Fisica della Materia - Padova
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Abstract

During the diffraction of a femtosecond pulse with a grating, apart spectral filtering, there occurs a time stretching due to the difference in the path length among the rays diffracted, even of equal wavelength. The reason resides in the action of the grating: to depart from the behavior of the mirror, that is, α = β, and to direct the rays in directions whose paths are groove-by-groove different of mλ. The compensation of this broadening is studied in the following by using a pair of grating in a particular mounting. The configuration is studied for the application in the selection of one single laser harmonics in the framework of high order harmonic generation processes.

Type
ULIA-1 CONFERENCE PAPERS
Information
Laser and Particle Beams , Volume 18 , Issue 3 , July 2000 , pp. 529 - 534
Copyright
© 2000 Cambridge University Press

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