Anti-Stokes wing of femtosecond laser filament supercontinuum in fused silica

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

doi:10.1364/ol.38.000016

Cited by 49 publications

(27 citation statements)

References 21 publications

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“…Saliminia et al [10] and Faccio et al [11] have shown the emergence of a broad peak in the visible part of the supercontinuum spectra generated by a 1.5-μm filament. Recent reports on supercontinuum emission from filaments at longer wavelengths confirm this observation while showing that filamentation in the anomalous dispersion regime gives rise to a broader continuum of over 3.3 octaves that could ideally self-compress to a single-cycle pulse [13][14][15][16].…”

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confidence: 70%

Blueshifted continuum peaks from filamentation in the anomalous dispersion regime

et al. 2013

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International audienceFilamentation in the anomalous dispersion regime is experimentally shown to give rise to an extreme blueshifted continuum peak in the visible region even when the filament is formed by near-infrared pulses. Measurements and numerical simulations allow us to identify this peak as an axial component of the conical emission. Its features are characterized and quantitatively reproduced by the effective three-wave mixing model

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confidence: 70%

Blueshifted continuum peaks from filamentation in the anomalous dispersion regime

et al. 2013

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“…[17] demonstrate unexpected long light-bullet propagation and reveal also another interesting point. The propagation dynamics are accompanied by the generation of blueshifted radiation [28], a phenomenon which is observed also under different conditions [8,[29][30][31][32] even for short filament lengths.…”

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confidence: 86%

Regularizing Aperiodic Cycles of Resonant Radiation in Filament Light Bullets

et al. 2017

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We demonstrate an up to now unrecognized and very effective mechanism which prevents filament collapse and allows persistent self-guiding propagation retaining a large portion of the optical energy on axis over unexpected long distances. The key ingredient is the possibility of continuously leaking energy into the normal dispersion regime via the emission of resonant radiation. The frequency of the radiation is determined by the dispersion dynamically modified by photogenerated plasma, thus allowing us to excite new frequencies in spectral ranges which are otherwise difficult to access.

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“…The angle-integrated as well as the axial SC spectra show an intense blue-shifted peak located in the visible range, which is identified as an axial component of the conical emission and whose blue-shift increases with increasing the wavelength of the driving pulse [157,158]. Various aspects of the spectral broadening and SC generation, such as energy content, stability of the carrier envelope phase, etc., were studied in connection with formation and propagation dynamics of spatiotemporal light bullets [77, 159, 3 μm laser pulse in a 3 mm-long fused silica sample versus the input pulse energy.…”

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Ultrafast supercontinuum generation in bulk condensed media

Dubietis¹,

Tamošauskas²,

Šuminas³

et al. 2017

Lith. J. Phys.

167

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Nonlinear propagation of intense femtosecond laser pulses in bulk transparent media leads to a specific propagation regime, termed femtosecond filamentation, which in turn produces dramatic spectral broadening, or superbroadening, termed supercontinuum generation. Femtosecond supercontinuum generation in transparent solids represents a compact, efficient and alignment-insensitive technique for generation of coherent broadband radiation at various parts of the optical spectrum, which finds numerous applications in diverse fields of modern ultrafast science. During recent years, this research field has reached a high level of maturity, both in understanding of the underlying physics and in achievement of exciting practical results. In this paper we overview the state-of-the-art femtosecond supercontinuum generation in various transparent solid-state media, ranging from wide-bandgap dielectrics to semiconductor materials and in various parts of the optical spectrum, from the ultraviolet to the mid-infrared spectral range. A particular emphasis is given to the most recent experimental developments: multioctave supercontinuum generation with pumping in the mid-infrared spectral range, spectral control, power and energy scaling of broadband radiation and the development of simple, flexible and robust pulse compression techniques, which deliver few optical cycle pulses and which could be readily implemented in a variety of modern ultrafast laser systems.

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Anti-Stokes wing of femtosecond laser filament supercontinuum in fused silica

Cited by 49 publications

References 21 publications

Blueshifted continuum peaks from filamentation in the anomalous dispersion regime

Blueshifted continuum peaks from filamentation in the anomalous dispersion regime

Regularizing Aperiodic Cycles of Resonant Radiation in Filament Light Bullets

Ultrafast supercontinuum generation in bulk condensed media

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