Phys. Rev. A 65, 063814 (2002) [6 pages]Suppression of quadratic cascading in four-photon interactions using periodically poled mediaReceived 29 November 2001; revised 27 February 2002; published 17 June 2002 We demonstrate theoretically that periodically poled materials with a suitable poling period can strongly reduce all χ(2):χ(2) cascading during χ(3) third-harmonic generation and optical parametric amplification in noncentrosymmetric crystals: the calculated reduction is, respectively, 3 and 6 orders of magnitude along the X axis of KTiOPO4. This is then an original and promising way to achieve efficient pure cubic optical frequency conversion, for the study of three-photon quantum properties. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.65.063814
DOI:
10.1103/PhysRevA.65.063814
PACS:
42.65.Ky, 42.70.Mp
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