Short pulse laser interaction with micro-structured targets: simulations of laser absorption and ion acceleration

Klimo, O.; Pšikal, J.; Limpouch, J.; Proška, Jan; Novotný, Filip; Ceccotti, T.; Floquet, V.; Kawata, Shigeo

doi:10.1088/1367-2630/13/5/053028

Cited by 109 publications

(92 citation statements)

References 41 publications

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“…Various simulation works attribute the observed improvement to a surface area increase and the local field enhancement introduced by the roughness [22][23][24][25]. Recently, several authors have shown that larger scale structures can give rise to enhanced production of hot electrons and/or high energy ions [26][27][28].…”

Section: B Target Designmentioning

confidence: 99%

Effects of front-surface target structures on properties of relativistic laser-plasma electrons

et al. 2014

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We report the results of a study of the role of prescribed geometrical structures on the front of a target in determining the energy and spatial distribution of relativistic laser-plasma electrons. Our 3D PIC simulation studies apply to short-pulse, high intensity laser pulses, and indicate that a judicious choice of target front-surface geometry provides the realistic possibility of greatly enhancing the yield of high energy electrons, while simultaneously confining the emission to narrow (< 5• ) angular cones.

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Section: B Target Designmentioning

confidence: 99%

Effects of front-surface target structures on properties of relativistic laser-plasma electrons

et al. 2014

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“…It should also be noted that other structured interfaces have also been studied through simulations on enhancing the laser-to-target energy conversion efficiency and altering the incident laser pulse [24][25][26][27][28][29][30][31][32][33][34][35][36] . In our work, we propose the concept of manipulation relativistic LPI by not only enhancing the absorption efficiency but also intensifying the laser pulse itself and furthermore, creating the particle sources at demand.…”

Section: Discussionmentioning

confidence: 99%

Exploring novel target structures for manipulating relativistic laser–plasma interaction

Jiang

Pukhov

et al. 2017

High Pow Laser Sci Eng

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The improved laser-to-pedestal contrast ratio enabled by current high-power laser pulse cleaning techniques allows the fine features of the target survive before the main laser pulse arrives. We propose to introduce the nano-fabrication technologies into laser-plasma interaction to explore the novel effects of micro-structures. We found out that not only laser-driven particle sources but also the laser pulse itself can be manipulated by specifically designed micro-cylinder and -tube targets, respectively. The proposal was supported by full-3D particle-in-cell simulations and successful proofof-principle experiments for the first time. We believe this would open a way to manipulate relativistic laser-plasma interaction at the micro-size level.

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“…A boost in proton acceleration was observed in thin targets with nanostructure on the front (laser) side via numerical simulations [6] and experimentally [7] for lower intensities. We have proposed to increase the absorption efficiency by using a monolayer of nanospheres on the targets front side [8]. Here, we demonstrate the impact of the nanosphere diameter on laser absorption, proton energy and acceleration efficiency in Section 2.…”

Section: Introductionmentioning

confidence: 87%

Efficient ion beam generation in laser interactions with micro-structured targets

Limpouch

Klimo

Pšikal

et al. 2013

EPJ Web of Conferences

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Abstract.The maximum ion energy and acceleration efficiency have to be increased for practical applications of intense ion beams produced by intense short laser pulses incident on a thin foil. For this aim, we propose to use foil with a microscopic structure on the front size. We have prepared such targets by depositing a monolayer of polystyrene nanospheres of a size comparable to laser wavelength on a thin foil. The damage threshold of the produced targets is found experimentally above 3.5 × 10 9 W/cm 2 for a nanosecond pedestal and above 10 11 W/cm 2 for femtosecond prepulses.

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Short pulse laser interaction with micro-structured targets: simulations of laser absorption and ion acceleration

Cited by 109 publications

References 41 publications

Effects of front-surface target structures on properties of relativistic laser-plasma electrons

Effects of front-surface target structures on properties of relativistic laser-plasma electrons

Exploring novel target structures for manipulating relativistic laser–plasma interaction

Efficient ion beam generation in laser interactions with micro-structured targets

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