| Preferential enhancement of laser-driven carbon ion acceleration from optimized nanostructured surfaces | |
| Dalui, Malay1; Wang, W. -M.2,3,4; Trivikram, T. Madhu1; Sarkar, Subhrangshu1; Tata, Sheroy1; Jha, J.1; Ayyub, P.1; Sheng, Z. M.4,5,6; Krishnamurthy, M.1,7 | |
| 刊名 | Scientific reports
 |
| 2015-07-08 | |
| 卷号 | 5页码:11 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/srep11930 |
| 通讯作者 | Krishnamurthy, m.(mkrism@tifr.res.in) |
| 英文摘要 | High-intensity ultrashort laser pulses focused on metal targets readily generate hot dense plasmas which accelerate ions efficiently and can pave way to compact table-top accelerators. laser-driven ion acceleration studies predominantly focus on protons, which experience the maximum acceleration owing to their highest charge-to-mass ratio. the possibility of tailoring such schemes for the preferential acceleration of a particular ion species is very much desired but has hardly been explored. here, we present an experimental demonstration of how the nanostructuring of a copper target can be optimized for enhanced carbon ion acceleration over protons or cu-ions. specifically, a thin (approximate to 0.25 mu m) layer of 25-30 nm diameter cu nanoparticles, sputter-deposited on a polished cusubstrate, enhances the carbon ion energy by about 10-fold at a laser intensity of 1.2x10(18) w/cm(2). however, particles smaller than 20 nm have an adverse effect on the ion acceleration. particle-in-cell simulations provide definite pointers regarding the size of nanoparticles necessary for maximizing the ion acceleration. the inherent contrast of the laser pulse is found to play an important role in the species selective ion acceleration. |
| WOS关键词 | FAST IGNITION ; PROTON-BEAMS ; INTENSE ; SIMULATIONS ; ABSORPTION ; SOLIDS ; CELLS ; PULSE |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000357599000001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2374064 |
| 专题 | 物理研究所 |
| 通讯作者 | Krishnamurthy, M. |
| 作者单位 | 1.Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India 2.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 3.Forschungszentrum Julich, Julich Supercomp Ctr, Inst Adv Simulat, D-52425 Julich, Germany 4.Shanghai Jiao Tong Univ, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China 5.Univ Strathclyde, SUPA, Dept Phys, Glasgow G4 0NG, Lanark, Scotland 6.Shanghai Jiao Tong Univ, Dept Phys & Astron, Key Lab Laser Plasmas MoE, Shanghai 200240, Peoples R China 7.TIFR Ctr Interdisciplinary Sci, Hyderabad 500075, Andhra Pradesh, India |
| 推荐引用方式 GB/T 7714 | Dalui, Malay,Wang, W. -M.,Trivikram, T. Madhu,et al. Preferential enhancement of laser-driven carbon ion acceleration from optimized nanostructured surfaces[J]. Scientific reports,2015,5:11. |
| APA | Dalui, Malay.,Wang, W. -M..,Trivikram, T. Madhu.,Sarkar, Subhrangshu.,Tata, Sheroy.,...&Krishnamurthy, M..(2015).Preferential enhancement of laser-driven carbon ion acceleration from optimized nanostructured surfaces.Scientific reports,5,11. |
| MLA | Dalui, Malay,et al."Preferential enhancement of laser-driven carbon ion acceleration from optimized nanostructured surfaces".Scientific reports 5(2015):11. |
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