The generation of a high-power laser pulse at 266 mn that is longitudinally shaped according to a prefixed intensity profile is reported. The main features of the pulse shape modifications due to second- and third-harmonic conversions are measured, and the results are in good agreement with the theory. The UV temporal shape depends on the chirp of the fundamental pulse and on the crystal phase-matching angle. Exploiting the large stretching imposed on the third-harmonic signal, we show that the pulse intensity profile can be obtained by spectral single-shot measurements.
High-power third-harmonic flat pulse laser generation / S. Cialdi, C. Vicario, M. Petrarca. - In: OPTICS LETTERS. - ISSN 0146-9592. - 31:19(2006 Oct 01), pp. 2885-2887.
High-power third-harmonic flat pulse laser generation
S. CialdiPrimo
;
2006
Abstract
The generation of a high-power laser pulse at 266 mn that is longitudinally shaped according to a prefixed intensity profile is reported. The main features of the pulse shape modifications due to second- and third-harmonic conversions are measured, and the results are in good agreement with the theory. The UV temporal shape depends on the chirp of the fundamental pulse and on the crystal phase-matching angle. Exploiting the large stretching imposed on the third-harmonic signal, we show that the pulse intensity profile can be obtained by spectral single-shot measurements.
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