Imperial College London

DrNicholasDover

Faculty of Natural SciencesDepartment of Physics

Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 3791nicholas.dover08 Website

 
 
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Location

 

735Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

77 results found

Prasad R, Ter-Avetisyan S, Doria D, Quinn KE, Romagnani L, Foster PS, Brenner CM, Green JS, Gallegos P, Streeter MJV, Carroll DC, Tresca O, Dover NP, Palmer CAJ, Schreiber J, Neely D, Najmudind Z, McKenna P, Zepf M, Borghesi Met al., 2011, Proton acceleration using 50 fs, high intensity ASTRA-Gemini laser pulses, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol: 653, Pages: 113-115, ISSN: 0168-9002

Journal article

Prasad R, Andreev AA, Ter-Avetisyan S, Doria D, Quinn KE, Romagnani L, Brenner CM, Carroll DC, Dover NP, Neely D, Foster PS, Gallegos P, Green JS, McKenna P, Najmudin Z, Palmer CAJ, Schreiber J, Streeter MJV, Tresca O, Zepf M, Borghesi Met al., 2011, Fast ion acceleration from thin foils irradiated by ultra-high intensity, ultra-high contrast laser pulses, APPLIED PHYSICS LETTERS, Vol: 99, ISSN: 0003-6951

Journal article

Pogorelsky IV, Polyanskiy MN, Babzien M, Yakimenko V, Dover NP, Palmer CAJ, Najmudin Z, Schreiber J, Shkolnikov P, Dudnikova Get al., 2011, Laser-induced cavities and solitons in overcritical hydrogen plasma, LASER PHYSICS, Vol: 21, Pages: 1288-1294, ISSN: 1054-660X

Journal article

Najmudin Z, Palmer CAJ, Dover NP, Pogorelsky I, Babzien M, Dangor AE, Dudnikova GI, Foster PS, Green JS, Ispiriyan M, Neely D, Polyanskiy MN, Schreiber J, Shkolnikov P, Yakimenko Vet al., 2011, Observation of impurity free monoenergetic proton beams from the interaction of a CO<sub>2</sub> laser with a gaseous target, 52nd Annual Meeting of the APS Division of Plasma Physics, Publisher: AIP Publishing, ISSN: 1070-664X

Conference paper

Streeter MJV, Foster PS, Cameron FH, Borghesi M, Brenner C, Carroll DC, Divall E, Dover NP, Dromey B, Gallegos P, Green JS, Hawkes S, Hooker CJ, Kar S, McKenna P, Nagel SR, Najmudin Z, Palmer CAJ, Prasad R, Quinn KE, Rajeev PP, Robinson APL, Romagnani L, Schreiber J, Spindloe C, Ter-Avetisyan S, Tresca O, Zepf M, Neely Det al., 2011, Relativistic plasma surfaces as an efficient second harmonic generator, NEW JOURNAL OF PHYSICS, Vol: 13, ISSN: 1367-2630

Journal article

Palmer CAJ, Dover NP, Pogorelsky I, Babzien M, Dudnikova GI, Ispiriyan M, Polyanskiy MN, Schreiber J, Shkolnikov P, Yakimenko V, Najmudin Zet al., 2011, Monoenergetic Proton Beams Accelerated by a Radiation Pressure Driven Shock, PHYSICAL REVIEW LETTERS, Vol: 106, ISSN: 0031-9007

Journal article

Pogorelsky I, Polyanskiy M, Yakimenko V, Ben-Zvi I, Shkolnikov P, Najmudin Z, Palmer CAJ, Dover NP, Oliva P, Carpinelli Met al., 2011, Proton- and x-ray beams generated by ultra-fast CO<sub>2</sub> lasers for medical applications, Conference on Laser Acceleration of Electrons, Protons, and Ions and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X

Conference paper

Borghesi M, Kar S, Prasad R, Kakolee FK, Quinn K, Ahmed H, Sarri G, Ramakrishna B, Qiao B, Geissler M, Ter-Avetisyan S, Zepf M, Schettino G, Stevens B, Tolley M, Ward A, Green J, Foster PF, Spindloe C, Gallegos P, Robinson AL, Neely D, Carroll DC, Tresca O, Yuan X, Quinn M, McKenna P, Dover N, Palmer C, Schreiber J, Najmudin Z, Sari I, Kraft M, Merchant M, Jeynes JC, Kirkby K, Fiorini F, Kirby D, Green Set al., 2011, Ion source development and radiobiology applications within the LIBRA project, Conference on Laser Acceleration of Electrons, Protons, and Ions and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X

Conference paper

Green JS, Borghesi M, Brenner CM, Carroll DC, Dover NP, Foster PS, Gallegos P, Green S, Kirby D, Kirkby KJ, McKenna P, Merchant MJ, Najmudin Z, Palmer CAJ, Parker D, Prasad R, Quinn KE, Rajeev PP, Read MP, Romagnani L, Schreiber J, Streeter MJV, Tresca O, Wahlstrom C-G, Zepf M, Neely Det al., 2011, Scintillator-based ion beam profiler for diagnosing laser-accelerated ion beams, Conference on Laser Acceleration of Electrons, Protons, and Ions and Medical Applications of Laser-Generated Secondary Sources of Radiation and Particles, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X

Conference paper

Pogorelsky IV, Babzien M, Polyanskiy MN, Yakimenko V, Dover NP, Palmer CAJ, Najmudin Z, Shkolnikov P, Williams O, Rosenzweig J, Oliva P, Carpinelli M, Golosio B, Delogu P, Stefanini A, Endrizzi Met al., 2011, Lasers As Particle Accelerators In Medicine: From Laser-Driven Protons To Imaging With Thomson Sources, 21st International Conference on Application of Accelerators in Research and Industry (CAARI), Publisher: AMER INST PHYSICS, Pages: 386-390, ISSN: 0094-243X

Conference paper

Pogorelsky IV, Babzien M, Polyanskiy MN, Yakimenko V, Dover NP, Palmer CAJ, Najmudin Z, Schreiber J, Ispiryan M, Shkolnikov P, Dudnikova Get al., 2010, Laser energy conversion to solitons and monoenergetic protons in near-critical hydrogen plasma, Pages: 4446-4448

Recent theoretical and experimental studies point to better efficiency of laser-driven ion acceleration when approaching the critical plasma density regime. Simultaneously, this is the condition for observing solitons: "bubble"-like quasi-stationary plasma formations with laser radiation trapped inside. Exploring this regime with ultra-intense solid state lasers is problematic due to the lack of plasma sources and imaging methods at ∼1021 cm-3 electron density. The terawatt picosecond CO2 laser operated at Brookhaven's Accelerator Test Facility offers a solution to this problem. At the 10 μm laser wavelength, the critical plasma density is 1019 cm-3, which is attainable with gas jets and can be optically probed with visible light. Capitalizing on this approach, we focused a circular-polarized CO2 laser beam with α0=0.5 onto a hydrogen gas jet and observed monoenergetic proton beams in the 1 MeV range. Simultaneously, the laser/plasma interaction region has been optically probed with a 2nd harmonic picosecond Nd:YAG laser to reveal hole boring and stationary soliton-like plasma formations. 2D PIC simulations agree with experimental results and aid in their interpretation.

Conference paper

Zepf M, Borghesi M, Mckenna P, Neely D, Najmudin Z, Lrobinson AP, Prasad R, Ter-Avetysian S, Foster PF, Carroll DC, Doria D, Dover N, Gallegos P, Green JS, Palmer CAJ, Romagnani L, Qiao B, Quinn K, Streeter M, Schreiber J, Brenner C, Tresca Oet al., 2010, Radiation pressure acceleration in the light-sail regime, Pages: 129-132

Conference paper

Prasad R, Ter-Avetisyan S, Doria D, Quinn KE, Romagnani L, Foster PS, Brenner CM, Green JS, Robinson APL, Gallegos P, Streeter MJV, Carroll DC, Tresca O, Dover N, Palmer CAJ, Schreiber J, Neely D, Najmudin Z, Mckenna P, Zepf M, Borghesi Met al., 2010, Ion acceleration from ultra thin foils on ASTRA-Gemini laser with 50fs, 10<sup>20</sup>-10<sup>21</sup> W/cm<sup>2</sup> pulses, Pages: 1006-1009

Conference paper

Prasad R, Doria D, Ter-Avetisyan S, Fostera PS, Quinn KE, Romagnani L, Brenner CM, Green JS, Gallegos P, Streeter MJV, Carroll DC, Tresca O, Dover N, Palmer CAJ, Schreiber J, Neely D, Najmudin Z, McKenna P, Zepf M, Borghesi Met al., 2010, Calibration of Thomson parabola-MCP assembly for multi-MeV ion spectroscopy, 1st International Conference on Frontiers in Diagnostic Technologies, Publisher: ELSEVIER, Pages: 712-715, ISSN: 0168-9002

Conference paper

Carroll DC, Tresca O, Prasad R, Romagnani L, Foster PS, Gallegos P, Ter-Avetisyan S, Green JS, Streeter MJV, Dover N, Palmer CAJ, Brenner CM, Cameron FH, Quinn KE, Schreiber J, Robinson APL, Baeva T, Quinn MN, Yuan XH, Najmudin Z, Zepf M, Neely D, Borghesi M, McKenna Pet al., 2010, Carbon ion acceleration from thin foil targets irradiated by ultrahigh-contrast, ultraintense laser pulses, NEW JOURNAL OF PHYSICS, Vol: 12, ISSN: 1367-2630

Journal article

Palmer CAJ, Dover N, Pogorelsky I, Babzien M, Dudnikova G, Ispiriyan M, Polyanskiy M, Schreiber J, Shkolnikov P, Yakimenko V, Najmudin Zet al., 2010, First Experiments on Laser Acceleration of Protons in Overdense Gas Jets, 14th Workshop on Advanced Accelerator Concepts, Publisher: AMER INST PHYSICS, Pages: 699-+, ISSN: 0094-243X

Conference paper

Mangles SPD, Genoud G, Kneip S, Burza M, Cassou K, Cros B, Dover NP, Kamperidis C, Najmudin Z, Persson A, Schreiber J, Wojda F, Wahlstrom C-Get al., 2009, Controlling the spectrum of x-rays generated in a laser-plasma accelerator by tailoring the laser wavefront, Applied Physics Letters, Vol: 95

Journal article

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