Temporal behavior of cross-phase-modulated second-harmonic generation of ultrashort laser pulses in nonlinear-optical media

Ho, P. P.; Ji, Di; Wang, Q. Z.; Alfano, R. R.

doi:10.1364/josab.7.000276

Cited by 21 publications

(5 citation statements)

References 25 publications

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“…Our estimations have shown that, in the wavelength range considered, the single-photon absorption cross section v-(l) is of the order of 1.5 x 10-23 cm 2 . The two-photon absorption varies between i2) = 5.7 x 10-30 cm 4 Therefore the maximum length for stable symbiotic beam propagation extends to 25 cm in the three cases considered.…”

mentioning

confidence: 86%

Collimation and guiding of symbiotic light-beam pairs

et al. 1992

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We find conditions for collimation and guiding of two light beams in a nonlinear bulk medium. The spatial parameters of each beam of the symbiotically coupled pair depend critically on the cross-phase modulation from the complementary beam. The diffraction divergence and self-phase modulation can be offset by proper choice of the wavelength, the value, and the sign of the nonlinear susceptibility of the medium.

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mentioning

confidence: 86%

Collimation and guiding of symbiotic light-beam pairs

et al. 1992

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“…The intensities are normalized to their maximal value. From the plot we see that the SH is emitted in two separate pulses [65] one of which is locked to the FF pulse and the other is delayed due to GVM.…”

Section: Characterization Of the Effective Nonlinearitymentioning

confidence: 99%

Nonlinear dynamics of two-color optical vortices in lithium niobate crystals

et al. 2008

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We study experimentally the nonlinear dynamics of two-color optical vortex beams in the presence of second-harmonic generation combined with the effects of photo- and thermal refraction, as well as self- and induced-phase modulation. We use an iron-doped lithium niobate crystal as a nonlinear medium for the vortex propagation and observe experimentally, depending on the laser wavelength, a decay of a double-charge vortex, splitting and reshaping of background beam, pattern formation, and controllable nonlinear rotation of a vortex pair.

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“…21 These conclusions are reminiscent of early results for ultrashort pulses as well as of more recent research, which deals with such effects in greater detail. [22][23][24] Figure 2 shows the evolution of the SHG spectrum as the pulse propagates in the NPP crystal according to Eqs. (2).…”

Section: Temporal Nonlinear Propagationmentioning

confidence: 99%

Cascaded second-order effects in N-(4-nitrophenyl)-L-prolinol, in a molecular single crystal

et al. 1997

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An investigation of cascaded second-order optical effects resulting in effective third-order interactions, temporal and spatial self-action, are presented for N-(4-nitrophenyl)-L-prolinol (NPP) a molecular single crystal with one of the largest phase-matchable second-order nonlinear coefficients known in the visible and near-infrared portions of the spectrum. We emphasize the effects of temporal and spatial walk-off in the nonlinear-optical propagation in NPP and discuss their consequences for cascaded second-order nonlinear applications. Walkoff effects play a detrimental role in cascaded all-optical switching. Whereas in standard second-harmonic generation walk-off reduces the efficiency but does not prevent the generation, in the case of cascading backconversation is required and more-deleterious effects occur: a portion of the field is lost in that the overlap between fundamental and second-harmonic wavelengths is reduced.

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Temporal behavior of cross-phase-modulated second-harmonic generation of ultrashort laser pulses in nonlinear-optical media

Cited by 21 publications

References 25 publications

Collimation and guiding of symbiotic light-beam pairs

Collimation and guiding of symbiotic light-beam pairs

Nonlinear dynamics of two-color optical vortices in lithium niobate crystals

Cascaded second-order effects in N-(4-nitrophenyl)-L-prolinol, in a molecular single crystal

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