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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 14 — Jul. 15, 2014
  • pp: 4231–4234

Nonlinear Raman–Nath diffraction of femtosecond laser pulses

A. M. Vyunishev, V. V. Slabko, I. S. Baturin, A. R. Akhmatkhanov, and V. Ya. Shur  »View Author Affiliations


Optics Letters, Vol. 39, Issue 14, pp. 4231-4234 (2014)
http://dx.doi.org/10.1364/OL.39.004231


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Abstract

We study the nonlinear Raman–Nath diffraction (NRND) of femtosecond laser pulses in a 1D periodic nonlinear photonic structure. The calculated second-harmonic spectra represent frequency combs for different orders of transverse phase matching. These frequency combs are in close analogy with the well-known spectral Maker fringes observed in single crystals. The spectral intensity of the second harmonic experiences a redshift with a propagation angle, which is opposite the case of Čerenkov nonlinear diffraction. We analyze how NRND is affected by the group-velocity mismatch between fundamental and second-harmonic pulses and by the parameters of the structure. Our experimental results prove the theoretical predictions.

© 2014 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Nonlinear Optics

History
Original Manuscript: May 29, 2014
Revised Manuscript: June 13, 2014
Manuscript Accepted: June 13, 2014
Published: July 14, 2014

Citation
A. M. Vyunishev, V. V. Slabko, I. S. Baturin, A. R. Akhmatkhanov, and V. Ya. Shur, "Nonlinear Raman–Nath diffraction of femtosecond laser pulses," Opt. Lett. 39, 4231-4234 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-14-4231

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