Abstract
The process of radiation pressure acceleration (RPA) of ions is investigated with the aim of suppressing the Rayleigh–Taylor-like transverse instabilities in laser–foil interaction. This is achieved by imposing surface and density modulations on the target surface. We also study the efficacy of RPA of ions from density modulated and structured targets in the radiation dominated regime where the radiation reaction effects are important. We show that the use of density modulated and structured targets and the radiation reaction effects can help in achieving the twin goals of high ion energy (in GeV range) and lower energy spread.
Highlights
Radiation pressure acceleration (RPA) of ions has attracted significant attention in the last two decades (Esirkepov et al 2004; Pegoraro & Bulanov 2007; Robinson et al 2008; Chen et al 2009; Macchi, Veghini & Pegoraro 2009; Chen et al 2011; Palmer et al 2011; Dollar et al 2012; Khudik et al 2014; Eliasson 2015; Wan et al 2018; Wang, Khudik & Shvets 2021)
Forward in 1962 (McInnes 1999; Forward 1984) and later on reinvented by Marx (1966), who first worked out the equation by considering a simple model of a mirror accelerated by a laser pulse (Marx 1966; Forward 1984)
We study the radiation pressure acceleration (RPA) of ions from the density modulated and structured targets, but we study the influence of the radiation reaction (RR) force on the development of the transverse instabilities from density modulated and structured targets
Summary
Radiation pressure acceleration (RPA) of ions has attracted significant attention in the last two decades (Esirkepov et al 2004; Pegoraro & Bulanov 2007; Robinson et al 2008; Chen et al 2009; Macchi, Veghini & Pegoraro 2009; Chen et al 2011; Palmer et al 2011; Dollar et al 2012; Khudik et al 2014; Eliasson 2015; Wan et al 2018; Wang, Khudik & Shvets 2021). Forward in 1962 (McInnes 1999; Forward 1984) and later on reinvented by Marx (1966), who first worked out the equation by considering a simple model of a mirror accelerated by a laser pulse (Marx 1966; Forward 1984) This line of thought is not in the realm of science fiction, and the photon sail can accelerate the interstellar probe to approximately 20 % of the velocity of. E.g. tailored electromagnetic pulses with sharp intensities (Pegoraro & Bulanov 2007), modulation of the RPA (Bulanov et al 2009) and the use of surface modulated targets (Chen et al 2011) have been proposed to alleviate the influence of the transverse instabilities on the RPA of ions.
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