Light bullets and supercontinuum spectrum during femtosecond pulse filamentation under conditions of anomalous group-velocity dispersion in fused silicalicati

Чекалин, С. В.; Компанец, В. О.; Smetanina, Evgeniya; Kandidov, V.P.

doi:10.1070/qe2013v043n04abeh015110

Cited by 41 publications

(19 citation statements)

References 25 publications

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“…2(b)]. In the strong anomalous GVD regime the light field intensity increases due to both spatial self-focusing and temporal pulse self-compression, which leads to the formation of a high intensity LB [15][16][17]. Recombination luminescence of laser plasma created by LB was registered in the experiment.…”

Section: -Nm Light Bulletmentioning

confidence: 92%

“…The authors identified the mechanisms responsible for the generation of this peak, clearly separated from the SC around the pump wavelength, as three-wave mixing. Direct connection of SC blue wing with near IR light bullets (LB) formation has been established in [15][16][17]. It was found that the energy of the SC visible part increases discretely by equal portions according to the number of LBs in the anomalous GVD filament.…”

Section: Introductionmentioning

confidence: 99%

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Giantically blue-shifted visible light in femtosecond mid-IR filament in fluorides

Dormidonov¹,

Компанец²,

Чекалин³

et al. 2015

Opt. Express

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A giant blue shift (more than 3000 nm) of an isolated visible band of supercontinuum was discovered and studied in the single filament regime of Mid-IR femtosecond laser pulse at powers slightly exceeding critical power for self-focusing in fluorides. At the pulse central wavelength increasing from 3000 nm to 3800 nm the spectral maximum of the visible band is shifted from 570 nm and 520 nm up to 400 nm and 330 nm for BaF(2) and CaF(2), respectively, its spectral width (FWHM) being reduced from 50 - 70 nm to 14 nm. It is shown that the formation of this narrow visible wing is a result of the interference of the supercontinuum components in the anomalous group velocity dispersion regime.

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Section: -Nm Light Bulletmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Giantically blue-shifted visible light in femtosecond mid-IR filament in fluorides

Dormidonov¹,

Компанец²,

Чекалин³

et al. 2015

Opt. Express

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“…It can be applied for remote sensing of atmosphere [5], wide-broaden molecular spectroscopy with femtosecond resolution [6]. The shape of light bullets frequency-angular spectrum was studied in [7]. It was shown that there is anti-Stokes wing which lies in visible (or shortwave) spectral range.…”

Section: Introductionmentioning

confidence: 99%

Supercontinuum spectrum in IR Bessel-Gauss and Gauss pulsed beam filament under anomalous group velocity dispersion in fused silica

et al. 2014

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Paper concerns experimental and numerical investigation on supercontinuum emission in the process of femtosecond beam filamentation under different geometrical focusing in presence of anomalous group velocity dispersion in fused silica. It was shown that energy of supercontinuum visible part increases discretely with increasing of input laser pulse energy. It is connected with light bullets formation. Also it was found that energy of supercontinuum visible part connected with each bullet doesn't depend on focusing geometry.

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“…Before proceeding, we note that the (3+1)D LBs have been recently predicted and investigated extensively both in experimental [35][36][37][38] and theoretical [39][40][41][42][43] work with various passive optical media. To generate such LBs, high light-intensity and ultrashort laser pulses are generally needed, and they are not easy to manipulate actively.…”

Section: Introductionmentioning

confidence: 99%

Manipulation of a weak signal pulse by optical soliton via double electromagnetically induced transparency

et al. 2019

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We propose a scheme to realize the manipulation of a weak signal pulse by ultraslow optical soliton in a coherent inverted-Y-type atomic system via double electromagnetically induced transparency (EIT). Based on Maxwell-Bloch equations, we derive nonlinear equations governing the spatial-temporal evolution of the probe and signal pulse envelopes. We show the giant enhancement of optical Kerr nonlinearity can be obtained under the condition of the double EIT, which results in the generation of a (2+1)-dimension optical soliton and can realize the manipulation of a weak signal pulse. Applying a far-detuned laser field to the system, we find that a weak signal pulse can be trapped by a (3+1)dimension light bullet. In particular, the trajectories of the light bullet and trapped signal pulse can be manipulated and controlled by introducing a Stern-Gerlach gradient magnetic field. The results predicted here may not only open a route for the study of weak-light nonlinear optics but also have potential applications in the precision measurements and optical information processing and transmission.

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Light bullets and supercontinuum spectrum during femtosecond pulse filamentation under conditions of anomalous group-velocity dispersion in fused silicalicati

Cited by 41 publications

References 25 publications

Giantically blue-shifted visible light in femtosecond mid-IR filament in fluorides

Giantically blue-shifted visible light in femtosecond mid-IR filament in fluorides

Supercontinuum spectrum in IR Bessel-Gauss and Gauss pulsed beam filament under anomalous group velocity dispersion in fused silica

Manipulation of a weak signal pulse by optical soliton via double electromagnetically induced transparency

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