Imperial College London

ProfessorZulfikarNajmudin

Faculty of Natural SciencesDepartment of Physics

Professor of Physics
 
 
 
//

Contact

 

z.najmudin Website

 
 
//

Location

 

736Blackett LaboratorySouth Kensington Campus

//

Summary

 

Publications

Publication Type
Year
to

312 results found

Krushelnick K, Najmudin Z, Mangles SPD, Thomas AGR, Wei MS, Walton B, Gopal A, Clark EL, Dangor AE, Fritzler S, Murphy CD, Norreys PA, Mori WB, Gallacher J, Jaroszynski D, Viskup Ret al., 2005, Laser plasma acceleration of electrons: Towards the production of monoenergetic beams, 46th Annual Meeting of the Division of Plasma Physics of the American-Physical-Society, Publisher: AIP Publishing, ISSN: 1070-664X

Conference paper

Krushelnick K, Najmudin Z, Mangles SPD, Thomas AGR, Wei MS, Walton B, Gopal A, Clark EL, Dangor AE, Fritzler S, Murphy CD, Norreys PA, Mori WB, Gallacher J, Jaroszynski D, Viskup Ret al., 2005, Laser plasma acceleration of electrons: Towards the production of monoenergetic beams - art. no. 056711, 46th Annual Meeting of the Division of Plasma Physics of the American-Physical-Society, Pages: 56711-56711

The interaction of high intensity laser pulses with underdense plasma is investigated experimentally using a range of laser parameters and energetic electron production mechanisms are compared. It is clear that the physics of these interactions changes significantly depending not only on the interaction intensity but also on the laser pulse length. For high intensity laser interactions in the picosecond pulse duration regime the production of energetic electrons is highly correlated with the production of plasma waves. However as intensities are increased the peak electron acceleration increases beyond that which can be produced from single stage plasma wave acceleration and direct laser acceleration mechanisms must be invoked. If, alternatively, the pulse length is reduced such that it approaches the plasma period of a relativistic electron plasma wave, high power interactions can be shown to enable the generation of quasimonoenergetic beams of relativistic electrons. (c) 2005 American Institute of Physics.

Conference paper

Mangles SPD, Murphy CD, Najmudin Z, Thomas AGR, Walton BR, Dangor AE, Krushelnick K, Foster PS, Hooker CJ, Langley A, Collier J, Norreys PA, Gallacher J, Viskup R, Jarosynski DA, Mori WB, Tsung FSet al., 2005, Observation of monoenergetic relativistic electron beams from intense laser - plasma interactions

We report the observation of monoenergetic electron beams (dE/E < 5%) produced by the interaction of a 12TW, 40fs laser pulse with underdense plasma, in contrast to all previous experiments, which produced energy spreads ~100%. © 2005 Optical Society of America.

Conference paper

Mangles SPD, Murphy CD, Najmudin Z, Thomas AGR, Collier JL, Dangor AE, Divall EJ, Foster PS, Gallacher JG, Hooker CJ, Jaroszynski DA, Langley AJ, Mori WB, Norreys PA, Tsung FS, Viskup R, Walton BR, Krushelnick Ket al., 2005, Monoenergetic electron beams from a laser-plasma accelerator

Monoenergetic electron beams (dE/E < 5%) produced by the interaction of a 12TW, 40fs laser pulse with underdense plasma have been observed, in contrast to all previous experiments, which produced energy spreads ~100%. © 2005 Optical Society of America.

Conference paper

Mangles SPD, Murphy CD, Najmudin Z, Thomas AGR, Collier JL, Dangor AE, Divall EJ, Foster PS, Gallacher JG, Hooker CJ, Jaroszynski DA, Langley AJ, Mori WB, Norreys PA, Tsung FS, Viskup R, Walton BR, Krushelnick Ket al., 2005, Monoenergetic electron beams from a laser-plasma accelerator

Monoenergetic electron beams (dE/E < 5%) produced by the interaction of a 12TW, 40fs laser pulse with underdense plasma have been observed, in contrast to all previous experiments, which produced energy spreads ~100%. © 2005 Optical Society of America.

Conference paper

Mangles SPD, Murphy CD, Najmudin Z, Thomas AGR, Walton BR, Dangor AE, Krushelnick K, Foster PS, Hooker CJ, Langley A, Collier J, Norreys PA, Gallacher J, Viskup R, Jarosynski DA, Mori WB, Tsung FSet al., 2005, Observation of monoenergetic relativistic electron beams from intense laser - plasma interactions

We report the observation of monoenergetic electron beams (dE/E < 5%) produced by the interaction of a 12TW, 40fs laser pulse with underdense plasma, in contrast to all previous experiments, which produced energy spreads ~100%. © 2005 Optical Society of America.

Conference paper

Wei MS, Mangles SPD, Najmudin Z, Walton B, Gopal A, Tatarakis M, Dangor AE, Clark EL, Evans RG, Fritzler S, Clarke RJ, Hernandez-Gomez C, Neely D, Mori W, Tzoufras M, Krushelnick Ket al., 2004, Ion acceleration by collisionless shocks in high-intensity-laser-underdense-plasma interaction, PHYSICAL REVIEW LETTERS, Vol: 93, ISSN: 0031-9007

Journal article

Mangles SPD, Murphy CD, Najmudin Z, Thomas AGR, Collier JL, Dangor AE, Divall EJ, Foster PS, Gallacher JG, Hooker CJ, Jaroszynski DA, Langley AJ, Mori WB, Norreys PA, Tsung FS, Viskup R, Walton BR, Krushelnick Ket al., 2004, Monoenergetic beams of relativistic electrons from intense laser-plasma interactions, NATURE, Vol: 431, Pages: 535-538, ISSN: 0028-0836

Journal article

Fritzler S, Lefebvre E, Malka V, Burgy F, Dangor AE, Krushelnick K, Mangles SPD, Najmudin Z, Rousseau JP, Walton Bet al., 2004, Emittance measurements of a laser-wakefield-accelerated electron beam, PHYSICAL REVIEW LETTERS, Vol: 92, ISSN: 0031-9007

Journal article

Malka V, Fritzler S, Lefebvre E, Krushelnick K, Mangles SPD, Najmudin Z, Walton B, Dangor AEet al., 2004, Electron beam production with an ultra short and intense laser pulse: A new tool for scientists, PHYSICA SCRIPTA, Vol: T107, Pages: 141-144, ISSN: 0031-8949

Journal article

Mangles SPD, Walton B, Wei MS, Clarke RJ, Fritzler S, Gopal A, Hernandez-Gomez C, Krushelnick K, Najmudin Z, Dangor AEet al., 2004, Relativistic electron accleration by a laser of intensity in excess of 10<SUP>20</SUP> W cm<SUP>-2</SUP>, PHYSICA SCRIPTA, Vol: T107, Pages: 121-124, ISSN: 0031-8949

Journal article

Murphy CD, Mangles SPD, Najmudin Z, Thomas AGR, Collier JL, Dangor AE, Divall EJ, Foster PS, Gallacher JG, Hooker CJ, Jaroszynski DA, Langley AJ, Mori WB, Norreys PA, Viskup R, Walton BR, Krushelnick Ket al., 2004, Observation of mono-energetic structures in the spectrum of laser wakefield accelerated electrons, Melville, 11th advanced accelerator concepts workshop, Stony Brook, NY, 21 - 26 June 2004, Publisher: American Institute of Physics, Pages: 853-857

Conference paper

Marquès JR, David PG, Faure J, Fritzler S, Malka V, Najmudin Z, Rousse A, Phuoc KT, Walton Bet al., 2003, Production of relativistic electrons by laser-plasma interaction and application to the generation of X-ray femtosecond impulses in the keV domain, 6th Meeting on Coherent Sources and Incoherent Sources of UV VUV and X, Publisher: E D P SCIENCES, Pages: 143-146, ISSN: 1155-4339

Conference paper

Najmudin Z, Krushelnick K, Clark EL, Mangles SPD, Walton B, Dangor AE, Fritzler S, Malka V, Lefebvre E, Gordon D, Tsung FS, Joshi Cet al., 2003, Self-modulated wakefield and forced laser wakefield acceleration of electrons, 44th Annual Meeting of the Division of Plasma Physics of the American-Physical-Society, Publisher: AIP Publishing, Pages: 2071-2077, ISSN: 1070-664X

Conference paper

Najmudin Z, Krushelnick K, Tatarakis M, Clark EL, Danson CN, Malka V, Neely D, Santala MIK, Dangor AEet al., 2003, The effect of high intensity laser propagation instabilities on channel formation in underdense plasmas, PHYSICS OF PLASMAS, Vol: 10, Pages: 438-442, ISSN: 1070-664X

Journal article

Neely D, Krushelnick K, Mangles S, Clarke R, Collier J, Dangor AE, Danson CN, Edwards RD, Fritzler S, Gopal A, Hatten P, Heathcote R, Hernandez-Gomez C, Ledingham KWD, McKenna P, Najmudin Z, Walton B, Wei Met al., 2003, Particle acceleration using the Vulcan Petawatt laser, ISSN: 1094-5695

Using the upgraded Vulcan Petawatt laser at 3×1020 Wcm-2 intensities, target interactions and acceleration in a gas jet were studied. Electron spectra with energies up to 240 MeV were detected. Indications of a new acceleration regime, which results in a non-Maxwellian distribution were observed. © 2000 Optical Society of America.

Conference paper

Najmudin Z, Krushelnick K, Clark EL, Colling DJ, Tatarakis M, Modena A, Dangor AE, Faure J, Malka V, Gordon D, Joshi Cet al., 2003, The production of high-energy electrons from the interaction of an intense laser pulse with an underdense plasma, Journal of Modern Optics, Vol: 50, Pages: 673-681, ISSN: 0950-0340

Journal article

Neely D, Krushelnick K, Mangles S, Clarke R, Collier J, Dangor AE, Danson CN, Edwards RD, Fritzler S, Gopal A, Hatton P, Heathcote R, Hernandez-Gomez C, Ledingham KWD, McKenna P, Najmudin Z, Walton B, Wei Met al., 2003, Particle acceleration using the Vulcan Petawatt laser

Using the upgraded Vulcan Petawatt laser at 3x1020 Wcm-2 intensities, target interactions and acceleration in a gas jet were studied. Electron spectra with energies up to 240 MeV were detected. Indications of a new acceleration regime, which results in a non-Maxwellian distribution were observed.

Conference paper

Najmudin Z, Krushelnick K, Clark EL, Colling DJ, Tatarakis M, Modena A, Dangor AE, Faure J, Malka V, Gordon Det al., 2003, The production of high-energy electrons from the interaction of an intense laser pulse with an underdense plasma, Journal of Modern Optics, Vol: 50, Pages: 673-682, ISSN: 0950-0340

Journal article

Walton B, Najmudin Z, Wei MS, Marle C, Kingham RJ, Krushelnick K, Dangor AE, Clarke RJ, Poulter MJ, Hernandez-Gomez C, Hawkes S, Neely D, Collier JL, Danson CN, Fritzler S, Malka Vet al., 2002, Large-amplitude plasma wave generation with a high-intensity short-pulse beat wave, OPTICS LETTERS, Vol: 27, Pages: 2203-2205, ISSN: 0146-9592

Journal article

Malka V, Fritzler S, Lefebvre E, Aleonard MM, Burgy F, Chambaret JP, Chemin JF, Krushelnick K, Malka G, Mangles SPD, Najmudin Z, Pittman M, Rousseau JP, Scheurer JN, Walton B, Dangor AEet al., 2002, Electron acceleration by a wake field forced by an intense ultrashort laser pulse, SCIENCE, Vol: 298, Pages: 1596-1600, ISSN: 0036-8075

Journal article

Fritzler S, Najmudin Z, Malka V, Krushelnick K, Marle C, Walton B, Wei MS, Clarke RJ, Dangor AEet al., 2002, Ion heating and thermonuclear neutron production from high-intensity subpicosecond laser pulses interacting with underdense plasmas, PHYSICAL REVIEW LETTERS, Vol: 89, ISSN: 0031-9007

Journal article

Edwards RD, Sinclair MA, Goldsack TJ, Krushelnick K, Beg FN, Clark EL, Dangor AE, Najmudin Z, Tatarakis M, Walton B, Zepf M, Ledingham KWD, Spencer I, Norreys PA, Clarke RJ, Kodama R, Toyama Y, Tampo Met al., 2002, Characterization of a gamma-ray source based on a laser-plasma accelerator with applications to radiography, APPLIED PHYSICS LETTERS, Vol: 80, Pages: 2129-2131, ISSN: 0003-6951

Journal article

Najmudin Z, Tatarakis M, Krushelnick K, Clark EL, Malka V, Faure J, Dangor AEet al., 2002, Ultra-high-intensity laser propagation through underdense plasma, IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 30, Pages: 44-45, ISSN: 0093-3813

Journal article

Fritzler S, Malka V, Lefebvre E, Aleonard MM, Burgy F, Chambaret JP, Chemin JF, Krushelnick K, Malka G, Mangles SPD, Najmudin Z, Rousseau JP, Scheurer JN, Walton B, Dangor AEet al., 2002, Electron acceleration beyond 200 MeV in underdense plasmas using table top laser systems, Melville, 10th workshop on advanced accelerator concepts, Mandalay Beach, California, 22 - 28 June 2002, Publisher: American Institute of Physics, Pages: 54-62

Conference paper

Fritzler S, Malka V, Lefebvre E, Aleonard MM, Burgy F, Chambaret JP, Chemin JF, Krushelnick K, Malka G, Mangles SPD, Najmudin Z, Rousseau JP, Scheurer JN, Walton B, Dangor AEet al., 2002, Electron acceleration beyond 200 MeV in underdense plasmas using table top laser systems, Melville, 10th workshop on advanced accelerator concepts, Mandalay Beach, California, 22 - 28 June 2002, Publisher: American Institute of Physics, Pages: 54-62

Conference paper

Najmudin Z, Tatarakis M, Pukhov A, Clark EL, Clarke RJ, Dangor AE, Faure J, Malka V, Neely D, Santala MIK, Krushelnick Ket al., 2001, Measurements of the inverse Faraday effect from relativistic laser interactions with an underdense plasma, PHYSICAL REVIEW LETTERS, Vol: 87, ISSN: 0031-9007

Journal article

Najmudin Z, Tatarakis M, Pukhov A, Clark EL, Clarke RJ, Dangor AE, Faure J, Malka V, Neely D, Santala MIK, Krushelnick Ket al., 2001, Measurements of the inverse Faraday effect from relativistic laser interactions with an underdense plasma, Physical Review Letters, Vol: 87, Pages: 2150041-2150044, ISSN: 0031-9007

Temporally and spatially resolved measurements of inverse Faraday effect (IFE) in a plasma using a self-channeling laser pulse of relativistic intensity were studied. The magnetic fields so obtained were much larger than expected, and have a duration approaching that of the high intensity laser pulse. The simulation results show that the magnetic field is generated by fast electrons which spiral around the axis of the channel created by the laser field.

Journal article

Malka V, Faure J, Marquès JR, Amiranoff F, Rousseau JP, Ranc S, Chambaret JP, Najmudin Z, Walton B, Mora P, Solodov Aet al., 2001, Characterization of electron beams produced by ultrashort (30 fs) laser pulses, PHYSICS OF PLASMAS, Vol: 8, Pages: 2605-2608, ISSN: 1070-664X

Journal article

Faure J, Marquès JR, Malka V, Amiranoff F, Najmudin Z, Walton B, Rousseau JP, Ranc S, Solodov A, Mora Pet al., 2001, Dynamics of Raman instabilities using chirped laser pulses -: art. no. 065401, PHYSICAL REVIEW E, Vol: 63, ISSN: 1539-3755

Journal article

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://wlsprd.imperial.ac.uk:80/respub/WEB-INF/jsp/search-html.jsp Request URI: /respub/WEB-INF/jsp/search-html.jsp Query String: limit=30&id=00167627&person=true&page=9&respub-action=search.html