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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 12 — Dec. 1, 2011
  • pp: 2888–2894

Harmonic generation and energy transport in dielectric and semiconductors at visible and UV wavelengths: the case of GaP

V. Roppo, N. Akozbek, D. de Ceglia, M. A. Vincenti, and M. Scalora  »View Author Affiliations


JOSA B, Vol. 28, Issue 12, pp. 2888-2894 (2011)
http://dx.doi.org/10.1364/JOSAB.28.002888


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Abstract

We study the propagation and momentum transport of the inhomogeneous component of second and third harmonic pulses in dielectrics and semiconductors, at visible and UV wavelengths, focusing on materials like GaP. In these spectral regions GaP is characterized by large absorption, metallic behavior or a combination of both. We show that phase locking causes the generated inhomogeneous signals to propagate through a bulk metallic medium without being absorbed. This means that it occurs even in centrosymmetric materials thanks to the magnetic Lorentz force. We show that the transport of energy and momentum is quite peculiar and it can appear as anomalous, and that the direction of the Poynting vector of some of the harmonic pulses does not follow Snell’s law after crossing the interface. These results make it clear that there are new opportunities in ultrafast nonlinear optics and nanoplasmonics in new wavelength ranges.

© 2011 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials
(260.7190) Physical optics : Ultraviolet

ToC Category:
Nonlinear Optics

History
Original Manuscript: May 25, 2011
Revised Manuscript: September 14, 2011
Manuscript Accepted: September 30, 2011
Published: November 10, 2011

Citation
V. Roppo, N. Akozbek, D. de Ceglia, M. A. Vincenti, and M. Scalora, "Harmonic generation and energy transport in dielectric and semiconductors at visible and UV wavelengths: the case of GaP," J. Opt. Soc. Am. B 28, 2888-2894 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-12-2888

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Supplementary Material


» Media 1: MOV (217 KB)     

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