The prospects for ultrashort pulse duration and ultrahigh intensity using optical parametric chirped pulse amplifiers

Ross, I. N.; Matousek, Pavel; Towrie, Michael; Langley, A. J.; Collier, J.

doi:10.1016/s0030-4018(97)00399-4

Cited by 562 publications

(176 citation statements)

References 23 publications

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“…[17][18][19] These techniques give large gain bandwidth amplification with high beam quality, and can serve usefully as a front-end preamplifier for large-scale Nd:glass facilities. 20 However, both CPA and derivative techniques like optical parametric chirped pulse amplification ͑OPCPA͒, and related extensions to shorter wavelengths yet, 21 still rely upon the time-stretching, broadband amplifying, and time-recompressing of a short pulse.…”

Section: Dual Optical Systemsmentioning

confidence: 99%

“…The focused intensity of the resulting 40 fs pulse is then 10 25 W/cm 2 . Some power is necessarily deposited in the plasma through the Langmuir wave by the Manley-Rowe relation ͑see the next section͒; for a plasma of density 7ϫ10 18 cm Ϫ3 , that turns out to be about 380 eV per electron, which is within the allowable temperature regime, i.e., still cold enough to avoid appreciable Landau damping ͑see, e.g., Ref. 22͒.…”

Section: Dual Optical Systemsmentioning

confidence: 99%

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Generation of ultrahigh intensity laser pulses

Fisch

Malkin

2003

Physics of Plasmas

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Mainly due to the method of chirped pulse amplification, laser intensities have grown remarkably during recent years. However, the attaining of very much higher powers is limited by the material properties of gratings. These limitations might be overcome through the use of plasma, which is an ideal medium for processing very high power and very high total energy. A plasma can be irradiated by a long pump laser pulse, carrying significant energy, which is then quickly depleted in the plasma by a short counterpropagating pulse. This counterpropagating wave effect has already been employed in Raman amplifiers using gases or plasmas at low laser power. Of particular interest here are the new effects which enter in high power regimes. These new effects can be employed so that one high-energy optical system can be used like a flashlamp in what amounts to pumping the plasma, and a second low-power optical system can be used to extract quickly the energy from the plasma and focus it precisely. The combined system can be very compact. Thus, focused intensities more than 10 25 W/cm 2 can be contemplated using existing optical elements. These intensities are several orders of magnitude higher than what is currently available through chirped pump amplifiers.

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Section: Dual Optical Systemsmentioning

confidence: 99%

Section: Dual Optical Systemsmentioning

confidence: 99%

Generation of ultrahigh intensity laser pulses

Fisch

Malkin

2003

Physics of Plasmas

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“…3.) [7] au niveau de ∼ 50 mJ. Un compresseur intermédiaireà réseaux de type Treacy [8] (efficacité ∼ 50-60 %) permet ensuite d'ajuster la durée de l'impulsion par rapport au régime d'amplification souhaité dans l'étage final XeF (régime femtoseconde :énergie modérée avec amplification directe sans compresseur; régime picoseconde : forteénergie -recompression finale par prismes ou réseaux).…”

Section: Conception De La Chaine Laserunclassified

Impulsions laser femtosecondes intenses à contraste élevé dans le bleu-vert par amplification directe dans un milieu gazeux

Utéza¹,

Tcheremiskine

Clady³

et al. 2005

J. Phys. IV France

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Résumé. Cet article présente la conception d'une chaîne laser femtoseconde TW visible, associant (i) un oscillateur solide Ti :Sa opéréà 950 nm, (ii) un amplificateur optiqueà dérive de fréquence permettant l'amplification du signalà 950 nm au niveau de plusieurs dizaines de mJ, (iii) un système doubleur pour convertir le signalà 475 nm et l'injecter dans le milieu amplificateur XeF (C-A), (iv) un milieu gazeux excimères XeF (C-A) permettant l'amplification directe du signalà 475 nmà plusieurs centaines de mJ et ainsi l'obtention d'impulsions TW visiblesà contrasteélevé.

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“…So SSSF has traditionally been attracted more attention and had extensity research in experimental and theoretical [16][17]. Many studies are based on different peak power [18,19], the form of spatial modulation [20][21][22], and different initial chirped [23]. Another, the spatial-temporal evolution for laser pulse is also the main research domain.…”

Section: Introductionmentioning

confidence: 99%

Effect of Spatial Modulation on Pulse Width for Ultrashort Laser Pulse during Small-Scale Self-Focusing

Wang¹,

Fu²

2015

Proceedings of the 2015 International Power, Electronics and Materials Engineering Conference

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Abstract. Small-scale self-focusing (SSSF) causes the distribution of spatial intensity to become asymmetrical. Spatial distribution would generate new growth point during SSSF. We measure the spatial-temporal evolution for ultrashort laser pulse with different truncation parameter of knife-edge during SSSF. Our results show that the new growth point is increasingly far away from center of beam and its intensity increases with decrease of truncation parameter. Meanwhile, the pulse width at the growth point becomes narrower. We find that our experimental results are in good agreement with an approximate theoretical analysis.

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The prospects for ultrashort pulse duration and ultrahigh intensity using optical parametric chirped pulse amplifiers

Cited by 562 publications

References 23 publications

Generation of ultrahigh intensity laser pulses

Generation of ultrahigh intensity laser pulses

Impulsions laser femtosecondes intenses à contraste élevé dans le bleu-vert par amplification directe dans un milieu gazeux

Effect of Spatial Modulation on Pulse Width for Ultrashort Laser Pulse during Small-Scale Self-Focusing

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