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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 5 — Mar. 1, 2008
  • pp: 527–529

Spatiotemporal toroidal waves from the transverse second-harmonic generation

Solomon M. Saltiel, Dragomir N. Neshev, Robert Fischer, Wieslaw Krolikowski, Ady Arie, and Yuri S. Kivshar  »View Author Affiliations


Optics Letters, Vol. 33, Issue 5, pp. 527-529 (2008)
http://dx.doi.org/10.1364/OL.33.000527


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Abstract

We study the second-harmonic generation via transversely matched interaction of two counterpropagating ultrashort pulses in χ ( 2 ) photonic structures. We show that the emitted second-harmonic wave attains the form of spatially expanding toroid with the initial thickness given by the cross correlation of the pulses. We demonstrate the formation of such toroidal waves in crystals with random ferroelectric domains as well as in annularly poled nonlinear photonic structures.

© 2008 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(260.5950) Physical optics : Self-focusing

ToC Category:
Nonlinear Optics

History
Original Manuscript: October 17, 2007
Revised Manuscript: January 17, 2008
Manuscript Accepted: January 18, 2008
Published: February 29, 2008

Citation
Solomon M. Saltiel, Dragomir N. Neshev, Robert Fischer, Wieslaw Krolikowski, Ady Arie, and Yuri S. Kivshar, "Spatiotemporal toroidal waves from the transverse second-harmonic generation," Opt. Lett. 33, 527-529 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-5-527


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References

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