Infrared supercontinuum frequency doubling via nonlinear Raman-Nath and Cerenkov scattering processes

Krupa, Katarzyna; Tonello, Alessandro; Pagnoux, Dominique; Labruyère, Alexis; Couderc, Vincent; Shalaby, Badr Mohamed Ibrahim; Baronio, Fabio

doi:10.1016/j.optcom.2015.06.018

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…An expression for the spectral bandwidth of quasi-phase matched SH generation has been obtained. The approach developed can be easily generalized to the case of supercontinuum radiation [27]. These results may inspire a wide range of applications in laser wavelength multiplexing …”

Section: Resultsmentioning

confidence: 95%

Theory of second-harmonic generation in a chirped 2D nonlinear optical superlattice under nonlinear Raman-Nath diffraction

2015

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We analyze second harmonic generation (SHG) in a two dimensional nonlinear optical superlattice (NLOS) with its modulation period being chirped in the propagation direction and constant in the transverse direction. This results in efficient multiple SHG via nonlinear Raman-Nath diffraction. We obtain exact analytical expressions for a SH amplitude generated in chirped 2D NLOSs and for its quasi-phasematching bandwidth. The results of analytical calculations are in excellent agreement with the numerical ones. We show that the process is robust to angular deviations of NLOS and it can be applied to enable tunable and broadband frequency conversion.

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Section: Resultsmentioning

confidence: 95%

Theory of second-harmonic generation in a chirped 2D nonlinear optical superlattice under nonlinear Raman-Nath diffraction

2015

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“…Freshly, it was demonstrated such diffractions can also be generated employing structured fundamental wave [5,6]. Generally speaking, there are two major types of nonlinear diffractions: nonlinear Bragg diffraction (NBD) [7,8] and nonlinear Raman-Nath diffraction (NRND) [9][10][11][12][13][14]. To obtain high conversion efficiency, it is inevitable to take into account phase-matching in these interactions.…”

Section: Introductionmentioning

confidence: 99%

The modulation to nonlinear Raman-Nath diffraction via manipulating slopes of domain structures

Chen

Feng

2019

J. Opt.

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We theoretically report a feasible scheme to modulate nonlinear Raman-Nath diffraction by use of manipulating slopes of domain structures, comprising unitary slope case and consecutive slope case. Our simulations demonstrate that the fulfillment of longitudinal phase matching condition can be achieved effectively in frequency-doubling process. According to particular requirements, each of the two cases in such a scheme could be selected, either obtaining a relatively higher output of average diffraction intensity, or getting a larger tolerance of fundamental wavelength. Furthermore, on account of the modulation, nonlinear diffraction spots possess inversion symmetric diffraction angles but inversion asymmetric intensities along the x-axis, which offers us a potential method to realize phase matching for a specified one order nonlinear diffraction in future.

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Infrared supercontinuum frequency doubling via nonlinear Raman-Nath and Cerenkov scattering processes

Cited by 2 publications

References 28 publications

Theory of second-harmonic generation in a chirped 2D nonlinear optical superlattice under nonlinear Raman-Nath diffraction

Theory of second-harmonic generation in a chirped 2D nonlinear optical superlattice under nonlinear Raman-Nath diffraction

The modulation to nonlinear Raman-Nath diffraction via manipulating slopes of domain structures

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