Imperial College London

ProfessorZulfikarNajmudin

Faculty of Natural SciencesDepartment of Physics

Professor of Physics
 
 
 
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Contact

 

z.najmudin Website

 
 
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Location

 

736Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
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266 results found

McGuffey C, Matsuoka T, Kneip S, Schumaker W, Dollar F, Zulick C, Chvykov V, Kalintchenko G, Yanovsky V, Maksimchuk A, Thomas AGR, Krushelnick K, Najmudin Zet al., 2012, Experimental laser wakefield acceleration scalings exceeding 100 TW, PHYSICS OF PLASMAS, Vol: 19, ISSN: 1070-664X

Journal article

Palmer CAJ, Schreiber J, Nagel SR, Dover NP, Bellei C, Beg FN, Bott S, Clarke RJ, Dangor AE, Hassan SM, Hilz P, Jung D, Kneip S, Mangles SPD, Lancaster KL, Rehman A, Robinson APL, Spindloe C, Szerypo J, Tatarakis M, Yeung M, Zepf M, Najmudin Zet al., 2012, Rayleigh-Taylor Instability of an Ultrathin Foil Accelerated by the Radiation Pressure of an Intense Laser, PHYSICAL REVIEW LETTERS, Vol: 108, ISSN: 0031-9007

Journal article

Vieira J, Martins SF, Fiuza F, Huang CK, Mori WB, Mangles SPD, Kneip S, Nagel S, Najmudin Z, Silva LOet al., 2012, Influence of realistic parameters on state-of-the-art laser wakefield accelerator experiments, PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 54, ISSN: 0741-3335

Journal article

Bellei C, Davies JR, Chauhan PK, Najmudin Zet al., 2012, Coherent transition radiation in relativistic laser-solid interactions, PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 54, ISSN: 0741-3335

Journal article

Kneip S, McGuffey C, Martins JL, Bloom MS, Chvykov V, Dollar F, Fonseca R, Jolly S, Kalintchenko G, Krushelnick K, Maksimchuk A, Mangles SPD, Najmudin Z, Palmer CAJ, Phuoc KT, Schumaker W, Silva LO, Vieira J, Yanovsky V, Thomas AGRet al., 2012, Characterization of transverse beam emittance of electrons from a laser-plasma wakefield accelerator in the bubble regime using betatron x-ray radiation, PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, Vol: 15, ISSN: 1098-4402

Journal article

Mangles SPD, Genoud G, Bloom MS, Burza M, Najmudin Z, Persson A, Svensson K, Thomas AGR, Wahlstrom C-Get al., 2012, Self-injection threshold in self-guided laser wakefield accelerators, Physical Review Special Topics: Accelerators and Beams, Vol: 15, Pages: 011302-1-011302-6, ISSN: 1098-4402

A laser pulse traveling through a plasma can excite large amplitude plasma waves that can be used to accelerate relativistic electron beams in a very short distance—a technique called laser wakefield acceleration. Many wakefield acceleration experiments rely on the process of wave breaking, or self-injection, to inject electrons into the wave, while other injection techniques rely on operation without self-injection. We present an experimental study into the parameters, including the pulse energy, focal spot quality, and pulse power, that determine whether or not a wakefield accelerator will self-inject. By taking into account the processes of self-focusing and pulse compression we are able to extend a previously described theoretical model, where the minimum bubble size kprb required for trapping is not constant but varies slowly with density and find excellent agreement with this model.

Journal article

Pogorelsky IV, Dover NP, Babzien M, Bell AR, Dangor AE, Horbury T, Palmer CAJ, Polyanskiy M, Schreiber J, Schwartz S, Shkolnikov P, Yakimenko V, Najmudin Zet al., 2012, Ion Acceleration by Laser Hole-Boring into Plasmas, 15th Workshop on Advanced Accelerator Concepts (AAC), Publisher: AMER INST PHYSICS, Pages: 814-819, ISSN: 0094-243X

Conference paper

Prasad R, Ter-Avetisyan S, Doria D, Quinn KE, Romagnani L, Zepf M, Borghesi M, Andreev A, Foster PS, Brenner CM, Gallegos P, Neely D, Green JS, Streeter MJV, Carroll DC, Tresca O, McKenna P, Dover NP, Palmer CAJ, Schreiber J, Najmudin Zet al., 2012, Acceleration of ions up to 20MeV/nucleon in the ultrashort, high-intensity regime, 179th International School of Physics Enrico Fermi on Laser-Plasma Acceleration, Publisher: IOS PRESS, Pages: 213-220, ISSN: 0074-784X

Conference paper

Willingale L, Thomas AGR, Nilson PM, Kaluza MC, Bandyopadhyay S, Dangor AE, Evans RG, Fernandes P, Haines MG, Kamperidis C, Kingham RJ, Minardi S, Notley M, Ridgers CP, Rozmus W, Sherlock M, Tatarakis M, Wei MS, Najmudin Z, Krushelnick Ket al., 2011, Proton probe measurement of fast advection of magnetic fields by hot electrons, PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 53, ISSN: 0741-3335

Journal article

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., 2011, Laser driven ion acceleration from ultra thin foils in the ultra relativistic intensity regime, Pages: 141-144

Conference paper

Kaluza MC, Schlenvoigt HP, Mangles SPD, Thomas AGR, Dangor AE, Schwoerer H, Mori WB, Najmudin Z, Krushelnick KM, Buck A, Nicolai M, Schmid K, Sears CMS, Sävert A, Mikhailova JM, Krausz F, Veisz Let al., 2011, Optical characterization of laser-driven electron acceleration

We present the first well-resolved experimental observation of the non-linear formation of a laser-driven plasma wave, its breaking leading to self-injection and acceleration of electrons in the wave's electric field in the regime of "Bubble-acceleration". FIO/ LS Technical Digest © 2011 OSA.

Conference paper

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

Kneip S, McGuffey C, Martins JL, Martins SF, Bellei C, Chvykov V, Dollar F, Fonseca R, Huntington C, Kalintchenko G, Maksimchuk A, Mangles SPD, Matsuoka T, Nagel SR, Palmer CAJ, Schreiber J, Phuoc KT, Thomas AGR, Yanovsky V, Silva LO, Krushelnick K, Najmudin Zet al., 2011, Bright spatially coherent synchrotron X-rays from a table-top source (vol 6, pg 980, 2010), NATURE PHYSICS, Vol: 7, Pages: 737-737, ISSN: 1745-2473

Journal article

Kneip S, McGuffey C, Dollar F, Bloom MS, Chvykov V, Kalintchenko G, Krushelnick K, Maksimchuk A, Mangles SPD, Matsuoka T, Najmudin Z, Palmer CAJ, Schreiber J, Schumaker W, Thomas AGR, Yanovsky Vet al., 2011, X-ray phase contrast imaging of biological specimens with femtosecond pulses of betatron radiation from a compact laser plasma wakefield accelerator, 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 CO2 laser with a gaseous target, 52nd Annual Meeting of the APS Division of Plasma Physics, Publisher: AMER INST PHYSICS, ISSN: 1070-664X

Conference paper

Green S, Borghesi M, Neely D, McKenna P, Najmudin Z, Palmer C, Sari I, Tolley M, Ward A, Carroll D, Kar S, Doria D, Green J, Brenner C, Kirby D, Fiorini F, Kirkby K, Merchant M, Jeynes C, Palmans H, Shipley D, Nutbrown R, Thomas R, Kraft M, Kakolee K, Prasad Ret al., 2011, LASER-PLASMA ACCELERATION OF PARTICLES FOR PROTON AND ION-BEAM RADIOTHERAPY: AN UPDATE FROM THE LIBRA CONSORTIUM, Publisher: ELSEVIER IRELAND LTD, Pages: S530-S530, ISSN: 0167-8140

Conference paper

Huntington CM, Thomas AGR, McGuffey C, Matsuoka T, Chvykov V, Kalintchenko G, Kneip S, Najmudin Z, Palmer C, Yanovsky V, Maksimchuk A, Drake RP, Katsouleas T, Krushelnick Ket al., 2011, Current Filamentation Instability in Laser Wakefield Accelerators, PHYSICAL REVIEW LETTERS, Vol: 106, ISSN: 0031-9007

Journal article

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 CO2 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

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

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

Kneip S, Nagel SR, Bellei C, Cheklov O, Clarke RJ, Delerue N, Divall EJ, Doucas G, Ertel K, Fiuza F, Fonseca R, Foster P, Hawkes SJ, Heathcote R, Hooker CJ, Krushelnick K, Martins SF, Palmer CAJ, Phuoc KT, Rajeev P, Schreiber J, Silva LO, Streeter MJV, Urner D, Vieira J, Mangles SPD, Najmudin Zet al., 2011, Study of near-GeV acceleration of electrons in a non-linear plasma wave driven by a self-guided laser pulse, PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 53, ISSN: 0741-3335

Journal article

Schreiber J, Bellei C, Mangles SPD, Kamperidis C, Kneip S, Nagel SR, Palmer CAJ, Rajeev PP, Streeter MJV, Najmudin Zet al., 2010, Complete Temporal Characterization of Asymmetric Pulse Compression in a Laser Wakefield, PHYSICAL REVIEW LETTERS, Vol: 105, ISSN: 0031-9007

Journal article

Kneip S, McGuffey C, Martins JL, Martins SF, Bellei C, Chvykov V, Dollar F, Fonseca R, Huntington C, Kalintchenko G, Maksimchuk A, Mangles SPD, Matsuoka T, Nagel SR, Palmer CAJ, Schreiber J, Phuoc KT, Thomas AGR, Yanovsky V, Silva LO, Krushelnick K, Najmudin Zet al., 2010, Bright spatially coherent synchrotron X-rays from a table-top source, NATURE PHYSICS, Vol: 6, Pages: 980-983, ISSN: 1745-2473

Journal article

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

Sarri G, Singh DK, Davies JR, Lancaster KL, Clark EL, Hassan S, Jiang J, Kageiwa N, Lopes N, Rehman A, Russo C, Scott RHH, Tanimoto T, Najmudin Z, Tanaka KA, Tatarakis M, Borghesi M, Norreys Pet al., 2010, Experimental detection of post-soliton structures following high intensity laser interaction with a sub-critical gas jet, Pages: 1960-1963

Conference paper

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