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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 9 — May. 1, 2006
  • pp: 1298–1300

Enhancement of harmonic generation by Fresnel-lensing effects

Stefano Cavalieri, Lorenzo Fini, Emiliano Sali, and Roberto Buffa  »View Author Affiliations

Optics Letters, Vol. 31, Issue 9, pp. 1298-1300 (2006)

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We present experimental results of enhanced second- and third-harmonic generation efficiency from Fresnel-lensing effects. We obtained enhancement by a factor of 6 in the third-harmonic yield by simply limiting the laser beam with an iris. Higher enhancement factors (up to 16) were obtained with a Fresnel zone plate. The experimental findings are in good agreement with the results of a simple theoretical analysis.

© 2006 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing

ToC Category:
Nonlinear Optics

Original Manuscript: December 16, 2005
Revised Manuscript: January 27, 2006
Manuscript Accepted: January 31, 2006

Stefano Cavalieri, Lorenzo Fini, Emiliano Sali, and Roberto Buffa, "Enhancement of harmonic generation by Fresnel-lensing effects," Opt. Lett. 31, 1298-1300 (2006)

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