title: Suppression of transverse ablative Rayleigh-Taylor-like instability in the hole-boring radiation pressure acceleration by using elliptically polarized laser pulses.
abstract: It is shown that the transverse Rayleigh-Taylor-like (RT) instability in the hole-boring radiation pressure acceleration can be suppressed by using an elliptically polarized (EP) laser. A moderate J×B heating of the EP laser will thermalize the local electrons, which leads to the transverse diffusion of ions, suppressing the short wavelength perturbations of RT instability. A proper condition of polarization ratio is obtained analytically for the given laser intensity and plasma density. The idea is confirmed by two-dimensional particle-in-cell simulations, showing that the ion beam driven by the EP laser is more concentrated and intense compared with that of the circularly polarized laser.
authors.affiliation: Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China.
authors.forename: D
authors.initials: D
authors.lastname: Wu
authors.affiliation: Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China and Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China.
authors.forename: C Y
authors.initials: CY
authors.lastname: Zheng
authors.affiliation: Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China.
authors.forename: B
authors.initials: B
authors.lastname: Qiao
authors.affiliation: Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China and Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China.
authors.forename: C T
authors.initials: CT
authors.lastname: Zhou
authors.affiliation: Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China.
authors.forename: X Q
authors.initials: XQ
authors.lastname: Yan
authors.affiliation: Institute of Fusion Theory and Simulation, Zhejiang University, Hangzhou, 310027, China.
authors.forename: M Y
authors.initials: MY
authors.lastname: Yu
authors.affiliation: Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China and Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China.
authors.forename: X T
authors.initials: XT
authors.lastname: He
mesh_terms: D003198:Computer Simulation; D004058:Diffusion; D004583:Electrons; D007477:Ions; D007834:Lasers; D008962:Models, Theoretical; D011312:Pressure; D011522:Protons; D011827:Radiation; D013696:Temperature
chemical_list: D007477:Ions; D011522:Protons