Abstract
We demonstrate that high-order harmonics generated by short, intense laser pulses in gases provide an interesting radiation source for extreme ultraviolet interferometry, since they are tunable, coherent, of short pulse duration, and simple to manipulate. Harmonics from the 9th to the 15th are used to measure the thickness of an aluminum layer. The 11th harmonic is used to determine the spatial distribution of the electron density of a plasma produced by a 300-ps laser. Electronic densities higher than are measured.
© 2000 Optical Society of America
Full Article | PDF ArticleMore Like This
Jean-Francois Hergott, Thierry Auguste, Pascal Salières, Laurent Le Déroff, Pascal Monot, Pascal d’Oliveira, David Campo, Hamed Merdji, and Bertrand Carré
J. Opt. Soc. Am. B 20(1) 171-181 (2003)
Y. Kobayashi, T. Sekikawa, Y. Nabekawa, and S. Watanabe
Opt. Lett. 23(1) 64-66 (1998)
Eiji J. Takahashi, Hirokazu Hasegawa, Yasuo Nabekawa, and Katsumi Midorikawa
Opt. Lett. 29(5) 507-509 (2004)