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An enhanced ionization injection scheme using a tightly focused laser pulse with intensity near the ionization potential to trigger the injection process in a mismatched pre-plasma channel has been proposed and examined via…

Accelerator Physics · Physics 2020-02-21 F. Li , C. J. Zhang , Y. Wan , Y. P. Wu , J. F. Hua , C. H. Pai , W. Lu , W. B. Mori , C. Joshi

Based on the dual-chirped optical parametric amplification and type-I BiB$_3$O$_6$(BiBO) crystals, the generation of $>$100 mJ, 10.4 fs, 10 Hz, carrier-to-envelope phase (CEP)-stable laser pulses, which are centered at 1.7 $\mu$m, is…

We present a theoretical study of atomic laser-assisted photoionization emission (LAPE). We consider an atom driven by a linearly polarized XUV laser in two different scenarios: i) a single attosecond pulse (in both the streaking and…

Atomic Physics · Physics 2020-10-21 Renata Della Picca , Marcelo F. Ciappina , Maciej Lewenstein , Diego G. Arbó

In order to achieve a high quality, i. e. monoergetic, intense ion beam, we propose the use of a double layer target. The first layer, at the target front, consists of high-Z atoms, while the second (rear) layer is a thin coating of low-Z…

Trapped-ion quantum information processing may benefit from qubits encoded in isotopes that are practically available in only small quantities, e.g. due to low natural abundance or radioactivity. Laser ablation provides a method of…

Quantum Physics · Physics 2023-07-12 X. Shi , S. L. Todaro , G. L. Mintzer , C. D. Bruzewicz , J. Chiaverini , I. L. Chuang

We report a theoretical and experimental investigation of autoionizing resonances from the $5d6p\,{}^3\mathrm{D}_1^o$ manifold in neutral barium for efficient loading of ion traps. Our calculations predict large resonant cross sections for…

We report a novel experimental technique for the comparison of ionization processes in ultrafast laser pulses irrespective of pulse ellipticity. Multiple ionization of xenon by 50 fs 790 nm, linearly and circularly polarized laser pulses is…

The resources needed for Particle in Cell simulations of Laser Wakefield Acceleration can be greatly reduced in many cases of interest using an envelope model. However, the inclusion of tunneling ionization in this time averaged treatment…

Plasma Physics · Physics 2022-04-28 Francesco Massimo , Arnaud Beck , Julien Dérouillat , Imen Zemzemi , Arnd Specka

The paper reports the results of two-dimensional particle-in-cell simulations of proton beam acceleration at the interactions of a 130 fs laser pulse of intensity from the range of 10^21-10^23 W/cm^2, predicted for the Extreme Light…

Plasma Physics · Physics 2017-08-01 Jaroslaw Domanski , Jan Badziak , Slawomir Jablonski

A compact low-energy and high-intensity electron source for material aging applications is presented. A laser-induced plasma moves inside a 30 kV diode and produces a 5 MW electron beam at the anode location. The corresponding dose that can…

Applied Physics · Physics 2020-02-19 F. Gobet , J. Gardelle , M. Versteegen , L. Courtois , S. Leblanc , V. Méot

Experimental and theoretical results are reported for single-photon single ionization of W$^{2+}$ and W$^{3+}$ tungsten ions. Experiments were performed at the photon-ion merged-beam setup of the Advanced Light Source in Berkeley. Absolute…

Atomic Physics · Physics 2015-12-21 B M McLaughlin , C P Ballance , S Schippers , J Hellhund , A L D Kilcoyne , R A Phaneuf , A Müller

We demonstrate laser-plasma acceleration of high charge electron beams to the ~10 MeV scale using ultrashort laser pulses with as little energy as 10 mJ. This result is made possible by an extremely dense and thin hydrogen gas jet. Total…

Accelerator Physics · Physics 2015-11-11 A. J. Goers , G. A. Hine , L. Feder , B. Miao , F. Salehi , H. M. Milchberg

We report on a new kind of correlated photon-pair source based on a waveguide integrated on a Periodically Poled Lithium Niobate substrate. Using a pump laser of a few micro-Watts at 657 nm, we generate degenerate photon-pairs at 1314 nm.…

Quantum Physics · Physics 2007-05-23 S. Tanzilli , H. de Riedmatten , W. Tittel , H. Zbinden , P. Baldi , M. de Micheli , D. B. Ostrowsky , N. Gisin

We revisit a recently proposed scheme [M.F. Ciappina et al 2019 Phys. Rev. A 99 043405] for accurate measurement of electromagnetic radiation intensities in a focus of high-power laser beams. The method is based on the observation of…

Atomic Physics · Physics 2020-02-19 M. F. Ciappina , S. V. Popruzhenko

When the ions are accelerated by the radiation pressure of the laser pulse, their velocity can not exceed the laser group velocity, in the case when it is less than the speed of light in vacuum. This is demonstrated in two cases…

We built a frequency-doubled laser for 87Rb laser cooling, from a Telecom fiber laser. Thanks to intense technological development, telecom fiber lasers exhibit outstanding properties regarding relative intensity noise and modulation…

Recent studies have demonstrated the possibility of accelerating electrons to MeV energies in ambient air using tightly focused laser configurations. In this article, we explore possible strategies to control and optimize the resulting…

This paper describes the first experimental demonstration of the guiding of a relativistic electron beam in a solid target using two co-linear, relativistically intense, picosecond laser pulses. The first pulse creates a magnetic field…

We theoretically study the process of photoelectron emission of the Helium atom by a high-intensity short-wavelength laser at a resonance condition of the residual singly charged ion. Photoionization followed by strong resonance coupling in…

Atomic Physics · Physics 2014-01-14 Song Bin Zhang , Nina Rohringer

A single-atom 'double-slit' experiment is realized by photo-ionizing Rubidium atoms using two independent low power lasers. The photoelectron wave of well-defined energy recedes to the continuum either from the 5P or 6P states in the same…

Atomic Physics · Physics 2019-01-17 James Pursehouse , Andrew James Murray , Jonas Wätzel , Jamal Berakdar