Nonlinear Raman-Nath diffraction of femtosecond laser pulses in a 2D nonlinear photonic crystal / Vyunishev A.M., Arkhipkin V.G., Slabko V.V., Baturin I.S., Akhmatkhanov A.R., Shur V.Y.A., Chirkin A.S. // Optics Letters. - 2015. - V. 40, l. 17. - P. 4002-4005.

ISSN:

01469592

Type:

Article

Abstract:

We study second-harmonic generation (SHG) of femtosecond laser pulses in a rectangular two-dimensional nonlinear photonic crystal (NLPC). Multiple SH beams were observed in the vicinity of the propagation direction of the fundamental beam. It has been verified that the angular positions of these beams obey the conditions of nonlinear Raman-Nath diffraction (NRND). The measured SH spectra of specific NRND orders consist of narrow peaks that experience a high-frequency spectral shift as the order grows. We derive an analytical expression for the process studied and find the theoretical results to be in good agreement with the experimental data. We estimate the enhancement factor of nonlinear Raman-Nath diffraction in 2D NLPC to be 70. © 2015 Optical Society of America.

Author keywords:

Index keywords:

Diffraction; Harmonic generation; Laser pulses; Nonlinear optics; Photonic crystals; Ultrafast lasers; Analytical expressions; Angular positions; Enhancement factor; High frequency HF; Nonlinear photo

DOI:

10.1364/OL.40.004002

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-84943327465&doi=10.1364%2fOL.40.004002&partnerID=40&md5=0209a376b9ce20f0369cb711a7fb10c0

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Affiliations	L.V. Kirensky Institute of Physics, Krasnoyarsk, Russian Federation; Department of Photonics and Laser Technology, Siberian Federal University, Krasnoyarsk, Russian Federation; Laboratory for Nonlinear Optics and Spectroscopy, Siberian Federal University, Krasnoyarsk, Russian Federation; Ural Federal University, Ekaterinburg, Russian Federation; Labfer Ltd, Ekaterinburg, Russian Federation; Faculty of Physics and International Laser Center, M. V. Lomonosov Moscow State University, Moscow, Russian Federation
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Correspondence Address	Vyunishev, A.M.; L.V. Kirensky Institute of PhysicsRussian Federation
Publisher	OSA - The Optical Society
CODEN	OPLED
Language of Original Document	English
Abbreviated Source Title	Opt. Lett.
Source	Scopus