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
to

268 results found

Mangles SPD, Kneip S, McGuffey C, Bulanov SS, Chvykov V, Dollar F, Horovitz Y, Huntington C, Kalintchenko G, Maksimchuk A, Matsuoka T, Palmer C, Ta Phuoc K, Rousseau P, Yanovsky V, Krushelnick K, Najmudin Zet al., 2009, Coherent betatron radiation from laser-wakefield accelerated bunches of monoenergetic electrons

X-rays generated by 0.1-0.5 GeV electron beams generated using a 100 TW laser are shown to have a low emittance, be spatially coherent and have a peak brightness comparable to 3rd generation synchrotron sources. © 2009 OSA/CLEO/IQEC 2009.

Conference paper

Kneip S, McGuffey C, Nagel SR, Palmer C, Bellei C, Schreiber J, Huntington C, Dollar F, Matsuoka T, Chvykov V, Kalintchenko G, Yanovsky V, Maksimchuk A, Phuoc KT, Mangles SPD, Krushelnick K, Najmudin Zet al., 2009, Comparative study of betatron radiation from laser-wakefield and direct-laser accelerated bunches of relativistic electrons, Conference on Harnessing Relativistic Plasma Waves as Novel Radiation Sources From Terahertz to X-Rays and Beyond, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X

Conference paper

Mangles SPD, Kneip S, McGuffe C, Bulanov SS, Chvykov V, Dollar F, Horovitz Y, Huntington C, Kalintchenko G, Maksimchuk A, Matsuoka T, Palmer C, Phuoc KT, Rousseau P, Yanovsky V, Krushelnick K, Najmudin Zet al., 2009, Coherent Betatron Radiation from Laser-Wakefield Accelerated Bunches of Monoenergetic Electrons, Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS 2009), Publisher: IEEE, Pages: 3217-+

Conference paper

Pogorelsky I, Shkolnikov P, Chen M, Pukhov A, Yakimenko V, McKenna P, Carroll D, Neely D, Najmudin Z, Willingale L, Stolyarov D, Stolyarova E, Flynn Get al., 2009, Proton and Ion Beams Generated with Picosecond CO2 Laser Pulses, 13th Advanced Accelerator Concepts Workshop, Publisher: AMER INST PHYSICS, Pages: 532-+, ISSN: 0094-243X

Conference paper

Kneip S, Nagel SR, Bellei C, Bourgeois N, Dangor AE, Gopal A, Heathcote R, Mangles SPD, Marquès JR, Maksimchuk A, Nilson PM, Ta Phuoc K, Reed S, Tzoufras M, Tsung FS, Willingale L, Mori WB, Rousse A, Krushelnick K, Najmudin Zet al., 2008, Petawatt laser synchrotron source, Pages: 57-60

Conference paper

Nilson PM, Willingale L, Kaluza MC, Kamperidis C, Minardi S, Wei MS, Fernandes P, Notley M, Bandyopadhyay S, Sherlock M, Kingham RJ, Tatarakis M, Najmudin Z, Rozmus W, Evans RG, Haines MG, Dangor AE, Krushelnick Ket al., 2008, Bidirectional jet formation during driven magnetic reconnection in two-beam laser-plasma interactions, PHYSICS OF PLASMAS, Vol: 15, ISSN: 1070-664X

Journal article

Mangles SPD, Thomas AGR, Bellei C, Dangor AE, Kamperidis C, Kneip S, Nagel SR, Willingale L, Najmudin Zet al., 2008, Self-guided wakefield experiments driven by petawatt-class ultrashort laser pulses, IEEE Transactions on Plasma Science, Vol: 36, Pages: 1715-1721, ISSN: 0093-3813

We investigate the extension of self-injecting laser wakefield experiments to the regime that will be accessible with the next generation of petawatt-class ultrashort pulse laser systems. Using nonlinear scalings, current experimental trends, and numerical simulations, we determine the optimal laser and target parameters, i.e., focusing geometry, plasma density, and target length, that are required to increase the electron beam energy (to >1 GeV) without the use of external guiding structures.

Journal article

Lindau F, Lundh O, Mangles SPD, Kaluza MC, Krushelnick K, Najmudin Z, Persson A, Thomas AGR, Wahlstrom C-Get al., 2008, Characterization of quasi-monoenergetic electron beams at the lund laser centre, IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 36, Pages: 1707-1714, ISSN: 0093-3813

Journal article

Willingale L, Mangles SPD, Nilson PM, Clarke RJ, Dangor AE, Kailiza MC, Karsch S, Lancaster KL, Mori WB, Schreiber J, Thomas AGR, Wei M-S, Krushelnick K, Najmudin Zet al., 2008, Longitudinal ion acceleration from high-intensity laser interactions with underdense plasma, IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 36, Pages: 1825-1832, ISSN: 0093-3813

Journal article

Thomas AGR, Murphy CD, Mangles SPD, Dangor AE, Foster P, Gallacher JG, Jaroszynski DA, Kamperidis C, Lancaster KL, Norreys PA, Viskup R, Krushelnick K, Najmudin Zet al., 2008, Monoenergetic electronic beam production using dual collinear laser pulses, PHYSICAL REVIEW LETTERS, Vol: 100, ISSN: 0031-9007

Journal article

Kneip S, Nagel SR, Bellei C, Bourgeois N, Dangor AE, Gopal A, Heathcote R, Mangles SPD, Marques JR, Maksimchuk A, Nilson PM, Phuoc KT, Reed S, Tzoufras M, Tsung FS, Willingale L, Mori WB, Rousse A, Krushelnick K, Najmudin Zet al., 2008, Observation of synchrotron radiation from electrons accelerated in a petawatt-laser-generated plasma cavity, PHYSICAL REVIEW LETTERS, Vol: 100, ISSN: 0031-9007

Journal article

Kar S, Markey K, Simpson PT, Bellei C, Green JS, Nagel SR, Kneip S, Carroll DC, Dromey B, Willingale L, Clark EL, McKenna P, Najmudin Z, Krushelnick K, Norreys P, Clarke RJ, Neely D, Borghesi M, Zepf Met al., 2008, Dynamic control of laser-produced proton beams, PHYSICAL REVIEW LETTERS, Vol: 100, ISSN: 0031-9007

Journal article

Rowlands-Rees TP, Kamperidis C, Kneip S, Gonsalves AJ, Mangles SPD, Gallacher JG, Brunetti E, Ibbotson T, Murphy CD, Foster PS, Streeter MJV, Budde F, Norreys PA, Jaroszynski DA, Krushelnick K, Najmudin Z, Hooker SMet al., 2008, Laser-driven acceleration of electrons in a partially ionized plasma channel, PHYSICAL REVIEW LETTERS, Vol: 100, ISSN: 0031-9007

Journal article

Green JS, Ovchinnikov VM, Evans RG, Akli KU, Azechi H, Beg FN, Bellei C, Freeman RR, Habara H, Heathcote R, Key MH, King JA, Lancaster KL, Lopes NC, Ma T, MacKinnon AJ, Markey K, McPhee A, Najmudin Z, Nilson P, Onofrei R, Stephens R, Takeda K, Tanaka KA, Theobald W, Tanimoto T, Waugh J, Van Woerkom L, Woolsey NC, Zepf M, Davies JR, Norreys PAet al., 2008, Effect of laser intensity on fast-electron-beam divergence in solid-density plasmas (vol 100, art no 015003, 2008), PHYSICAL REVIEW LETTERS, Vol: 100, ISSN: 0031-9007

Journal article

Green JS, Ovchinnikov VM, Evans RG, Akli KU, Azechi H, Beg FN, Bellei C, Freeman RR, Habara H, Heathcote R, Key MH, King JA, Lancaster KL, Lopes NC, Ma T, MacKinnon AJ, Markey K, McPhee A, Najmudin Z, Nilson P, Onofrei R, Stephens R, Takeda K, Tanaka KA, Theobald W, Tanimoto T, Waugh J, Van Woerkom L, Woolsey NC, Zepf M, Davies JR, Norreys PAet al., 2008, Effect of laser intensity on fast-electron-beam divergence in solid-density plasmas, PHYSICAL REVIEW LETTERS, Vol: 100, ISSN: 0031-9007

Journal article

Shkolnikov P, Pogorelsky I, Yakimenko V, Babzien M, McKenna P, Carroll D, Nealy D, Pukhov A, Najmudin Z, Willingdale L, Stolyarova E, Flynn Get al., 2008, Proton and ion acceleration by an ultrafast TW CO<inf>2</inf> Laser: Proof-of-principle experiments

Results on proton acceleration by an ultrashort TW CO2 laser interacting with Al foils show 2proton energy spectra substantially different from those obtained with solid-state lasers, due to the laser's different wavelength and polarization. © 2008 Optical Society of America.

Conference paper

Kar S, Markey K, Simpson PT, Bellei C, Green JS, Nagel SR, Kneip S, Carroll DC, Dromey B, Willingale L, Clark EL, McKenna P, Najmudin Z, Krushelnick K, Norreys P, Clarke RJ, Neely D, Borghesi M, Schiavi A, Zepf Met al., 2008, Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration, 1st International Symposium on Laser-Driven Relativistic Plasmas Applied for Science, Industry, and Medicine, Publisher: AMER INST PHYSICS, Pages: 173-+, ISSN: 0094-243X

Conference paper

Krushelnick K, Najmudin Z, Dangor AE, 2007, Particle acceleration using intense laser produced plasmas, LASER PHYSICS LETTERS, Vol: 4, Pages: 847-862, ISSN: 1612-2011

Journal article

Zepf M, Dromey B, Kar S, Bellei C, Carroll DC, Clarke RJ, Green JS, Kneip S, Markey K, Nagel SR, Simpson PT, Willingale L, McKenna P, Neely D, Najmudin Z, Krushelnick K, Norreys PAet al., 2007, High harmonics from relativistically oscillating plasma surfaces - a high brightness attosecond source at keV photon energies, 34th European-Physical-Society Conference on Plasma Physics, Publisher: IOP PUBLISHING LTD, Pages: B149-B162, ISSN: 0741-3335

Conference paper

Hooker SM, Brunetti E, Esarey E, Gallacher JG, Geddes CGR, Gonsalves AJ, Jaroszynski DA, Kamperidis C, Kneip S, Krushelnick K, Leemans WP, Mangles SPD, Murphy CD, Nagler B, Najmudin Z, Nakamura K, Norreys PA, Panasenko D, Rowlands-Rees TP, Schroeder CB, Toth CS, Trines Ret al., 2007, GeV plasma accelerators driven in waveguides, 34th European-Physical-Society Conference on Plasma Physics, Publisher: IOP PUBLISHING LTD, Pages: B403-B410, ISSN: 0741-3335

Conference paper

Dromey B, Kar S, Bellei C, Carroll DC, Clarke RJ, Green JS, Kneip S, Markey K, Nagel SR, Simpson PT, Willingale L, McKenna P, Neely D, Najmudin Z, Krushelnick K, Norreys PA, Zepf Met al., 2007, Bright multi-keV harmonic generation from relativistically oscillating plasma surfaces, PHYSICAL REVIEW LETTERS, Vol: 99, ISSN: 0031-9007

Journal article

Mangles SPD, Thomas AGR, Lundh O, Lindau F, Kaluza MC, Persson A, Wahlstrom C-G, Krushelnick K, Najmudin Zet al., 2007, On the stability of laser wakefield electron accelerators in the monoenergetic regime, 48th Annual Meeting of the Division of Plasma Physics of the APS, Publisher: AMER INST PHYSICS, ISSN: 1070-664X

Conference paper

Thomas AGR, Najmudin Z, Mangles SPD, Murphy CD, Dangor AE, Kamperidis C, Lancaster KL, Mori WB, Norreys PA, Rozmus W, Krushelnick Ket al., 2007, Effect of laser-focusing conditions on propagation and monoenergetic electron production in laser-wakefield accelerators, PHYSICAL REVIEW LETTERS, Vol: 98, ISSN: 0031-9007

Journal article

Thomas AGR, Mangles SPD, Najmudin Z, Kaluza MC, Murphy CD, Krushelnick Ket al., 2007, Measurements of wave-breaking radiation from a laser-wakefield accelerator, PHYSICAL REVIEW LETTERS, Vol: 98, ISSN: 0031-9007

Journal article

Willingale L, Mangles SPD, Nilson PM, Clarke RJ, Dangor AE, Kaluza MC, Karsch S, Lancaster KL, Mori WB, Najmudin Z, Schreiber J, Thomas AGR, Wei MS, Krushelnick Ket al., 2007, Comment on "Collimated multi-MeV ion beams from high-intensity laser interactions with underdense plasma" - Willingale et al. reply, PHYSICAL REVIEW LETTERS, Vol: 98, ISSN: 0031-9007

Journal article

Nilson PM, Willingale L, Kaluza MC, Kamperidis C, Minardi S, Wei MS, Fernandes P, Notley M, Bandyopadhyay S, Sherlock M, Kingham RJ, Tatarakis M, Najmudin Z, Rozmus W, Evans RG, Haines MG, Dangor AE, Krushelnick Ket al., 2006, Magnetic reconnection and plasma dynamics in two-beam laser-solid interactions, PHYSICAL REVIEW LETTERS, Vol: 97

Journal article

Nilson PM, Willingale L, Kaluza MC, Kamperidis C, Minardi S, Wei MS, Fernandes P, Notley M, Bandyopadhyay S, Sherlock M, Kingham RJ, Tatarakis M, Najmudin Z, Rozmus W, Evans RG, Haines MG, Dangor AE, Krushelnick Ket al., 2006, Magnetic reconnection and plasma dynamics in two-beam laser-solid interactions, PHYSICAL REVIEW LETTERS, Vol: 97

Journal article

Mangles SPD, Thomas AGR, Kaluza MC, Lundh O, Lindau F, Persson A, Najmudin Z, Wahlstroem C-G, Murphy CD, Kamperidis C, Lancaster KL, Divall E, Krushelnick Ket al., 2006, Effect of laser contrast ratio on electron beam stability in laser wakefield acceleration experiments, 33rd European-Physical-Society Conference on Plasma Physics, Publisher: IOP PUBLISHING LTD, Pages: B83-B90, ISSN: 0741-3335

Conference paper

Thomas AGR, Mangles SPD, Najmudin Z, Murphy CD, Dangor AE, Rozmus W, Krushelnick K, Foster PS, Norreys PA, Gallacher JG, Jaroszynski DA, Mori WBet al., 2006, The effect of laser focusing conditions in laser wakefield acceleration experiments

The effect of focusing conditions in laser wakefield acceleration is studied. Short focal length geometries produce large dark currents while longer focal lengths produce narrow energy spread beams. © 2006 Optical Societ of America.

Conference paper

Mangles SPD, Thomas AGR, Kahiza MC, Najmudin Z, Danger AE, Krushelnick K, Lundh O, Lindau F, Wahlstrom CGet al., 2006, Laser wakefield acceleration in the first plasma wave a period

Beam profile measurements of laser-wakefield accelerated electrons reveal that the electrons are accelerated within the first wave period of the plasma wave. © 2006 Optical Societ of America.

Conference paper

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