High-brightness soft X-ray generation under optimized laser-cluster interaction

Lin, Jiunn Yuan; Chu, H.-H.; Shen, Ming-Yi; Xiao, Yee-Fang; Lee, Chau Hwang; Chen, Shouyuan; Wang, Jyhpyng

doi:10.1016/j.optcom.2003.12.017

Cited by 7 publications

(3 citation statements)

References 26 publications

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“…The heating of cluster electrons in circularly polarized laser fields has not yet received much attention, at least theoretically. Experiments with rare-gas clusters show almost no effect on the x-ray emission [32,33,34] and ion energy distribution [35] when laser light of different ellipticity is used. Theoretically, circular polarization is particularly interesting because the above mentioned "collisions with the cluster boundary" are strongly suppressed in this case.…”

Section: Introductionmentioning

confidence: 99%

Collisionless energy absorption in the short-pulse intense laser-cluster interaction

Kundu

Bauer

2006

Phys. Rev. A

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In a previous paper [Phys. Rev. Lett. 96, 123401 (2006)] we have shown by means of three-dimensional particle-in-cell simulations and a simple rigid-sphere model that nonlinear resonance absorption is the dominant collisionless absorption mechanism in the intense, short-pulse laser cluster interaction. In this paper we present a more detailed account of the matter. In particular we show that the absorption efficiency is almost independent of the laser polarization. In the rigid-sphere model, the absorbed energy increases by many orders of magnitude at a certain threshold laser intensity. The particle-in-cell results display maximum fractional absorption around the same intensity. We calculate the threshold intensity and show that it is underestimated by the common overbarrier ionization estimate

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Section: Introductionmentioning

confidence: 99%

Collisionless energy absorption in the short-pulse intense laser-cluster interaction

Kundu

Bauer

2006

Phys. Rev. A

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“…The nonlinear interaction of laser pulses with clusters has been the subject of intense theoretical and experimental research in the last two decades [1]. Particular attention has been devoted to the complex cluster dynamics occurring during and after the interaction with a high-energy ultrashort laser pulse; time-resolved experiments have been performed in single-and doublepulse configurations, looking to electron and ion spectra [2][3][4] and to efficiency in laser absorption and scattering [5,6] as well as to emission in the XUV [7][8][9][10] and x-ray [11][12][13] spectral regions.…”

Section: Introductionmentioning

confidence: 99%

CO₂exploding cluster dynamics probed by XUV fluorescence

et al. 2014

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Clusters excited by intense laser pulses are a unique source of warm dense matter, that has been the subject of intensive experimental studies. The majority of these investigations concern atomic clusters, whereas the evolution of molecular clusters excited by intense laser pulses is less explored. In this work we trace the dynamics of CO 2 clusters triggered by a few-cycle μ 1.45 m driving pulse through the detection of XUV fluorescence induced by a delayed 800 nm ignition pulse. Striking differences among fluorescence dynamics from different ionic species are observed.

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“…To use X-rays for extreme ultraviolet (EUV) lithography [2], X-ray microscopy [3], and analytic techniques [4,5] have drawn much attention because of the need for the new lithography and microscopy techniques [6]. Extreme ultraviolet lithography (EUVL) will require bright, efficient plasma sources for use at soft X-ray wavelengths of 13.5 nm [7].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Ni-like and Co-like X-rays emitted from laser produced tin plasmas

et al. 2006

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The Ni-like and Co-like X-rays emitted from laser produced Tin plasmas generated using the 1.06 µm, 1.2 ns pulses from a Nd:YAG laser were modelled. The modelling includes the Ni-like and Co-like X-ray resonance line spectrum emitted from Sn plasma between 12Å -25Å and also free-free and free-bound continuous spectrum emitted from the Zn-, Cu-, Ni-, Co-and Fe-like ions between 1Å and 30Å. Then, X-ray conversion efficiencies were calculated using these spectra. Maximum X-ray conversion efficiency was obtained 3.54 % at power density of 5 × 10 12 W cm −2 into 2π steradian. X-ray pulse durations were calculated spectrally integrated total X-ray emission of the Ni-like and Co-like from Sn plasmas.

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High-brightness soft X-ray generation under optimized laser-cluster interaction

Cited by 7 publications

References 26 publications

Collisionless energy absorption in the short-pulse intense laser-cluster interaction

Collisionless energy absorption in the short-pulse intense laser-cluster interaction

CO₂exploding cluster dynamics probed by XUV fluorescence

Simulation of Ni-like and Co-like X-rays emitted from laser produced tin plasmas

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High-brightness soft X-ray generation under optimized laser-cluster interaction

Cited by 7 publications

References 26 publications

Collisionless energy absorption in the short-pulse intense laser-cluster interaction

Collisionless energy absorption in the short-pulse intense laser-cluster interaction

CO2exploding cluster dynamics probed by XUV fluorescence

Simulation of Ni-like and Co-like X-rays emitted from laser produced tin plasmas

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Product

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CO₂exploding cluster dynamics probed by XUV fluorescence