Phys. Rev. A 80, 043819 (2009) [6 pages]Phase matching of high-order harmonics in a semi-infinite gas cellReceived 19 August 2009; published 19 October 2009 Phase matching of high-order harmonic generation is investigated experimentally for various parameters in a semi-infinite gas-cell (SIGC) geometry. The optimized harmonic yield is identified using two different noble gases (Xe and He) and its parameter dependence is studied in a systematic way. Beside the straightforward setup of the SIGC, this geometry promises a high photon flux due to a large interaction region. Moreover, since the experimental parameters within this cell are known accurately, direct comparison to simulations is performed. Spectral splitting and blueshift of high-order harmonics are observed. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.80.043819
DOI:
10.1103/PhysRevA.80.043819
PACS:
42.65.Ky, 42.50.Nn
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