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

268 results found

Marques 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 of the American-Physical-Society, Publisher: AMER INST PHYSICS, 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

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, 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, Najmudin Z, Krushelnick K, Clark EL, Colling DJ, Tatarakis M, Modena A, Dangor AE, Faure J, Malka V, Gordon D, Najmudin Z, Krushelnick K, Clark EL, Colling DJ, Tatarakis M, Modena A, Dangor AE, Faure J, Malka V, Gordon D, 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 AE, 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, 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

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

Faure J, Marques 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, PHYSICAL REVIEW E, Vol: 63, ISSN: 1063-651X

Journal article

Malka V, Faure J, Marques 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

Santala MIK, Najmudin Z, Clark EL, Tatarakis M, Krushelnick K, Dangor AE, Malka V, Faure J, Allott R, Clarke RJet al., 2001, Observation of a hot high-current electron beam from a self-modulated laser wakefield accelerator, PHYSICAL REVIEW LETTERS, Vol: 86, Pages: 1227-1230, ISSN: 0031-9007

Journal article

Faure J, Marques 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, Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol: 63, Pages: 065401/1-065401/4, ISSN: 1539-3755

Measurements of Raman instabilities with subpicosecond time resolution in the referential frame of the laser pulse were carried out. It was found that Raman 30° side scattering and forward scattering occur at the back of the pulse. A simple model was developed that allows to calculate RFS spectra with a good accuracy.

Journal article

Malka V, Faure J, Marques JR, Amiranoff F, Rousseau JP, Ranc S, Chambaret JP, Najmudin Z, Walton B, Mora P, Solodov Aet al., 2001, Electron source produced in the self modulated laser wake field regime, 26th European Conference on Laser Interactions with Matter (ECLIM 2000), Publisher: SPIE-INT SOC OPTICAL ENGINEERING, Pages: 446-451, ISSN: 0277-786X

Conference paper

Krushelnick K, Clark E, Najmudin Z, Salvati M, Santala MIK, Tatarakis M, Dangor A, Malka V, Neely D, Allott R, Danson Cet al., 2000, Diagnosis of peak laser intensity from high-energy ion measurements during intense laser interactions with underdense plasmas, LASER AND PARTICLE BEAMS, Vol: 18, Pages: 595-600, ISSN: 0263-0346

Journal article

Najmudin Z, Allott R, Amiranoff F, Clark EL, Danson CN, Gordon DF, Joshi C, Krushelnick K, Malka V, Neely D, Salvati MR, Santala MIK, Tatarakis M, Danger AEet al., 2000, Measurement of forward raman scattering and electron acceleration from high-intensity laser-plasma interactions at 527 nm, IEEE Transactions on Plasma Science, Vol: 28, Pages: 1122-1127, ISSN: 0093-3813

High-intensity laser-plasma interaction experiments were performed using high-power laser pulses (greater than 8 TW) at a wavelength of 527 nm. These pulses were focused to intensity greater than 1018 W/cm2 into underdense helium plasma at a density of ne < 5 x 1019 cm~3. Systematic examination of the forward Raman scattering instability was performed by measuring the spectrum of the forward scattered light. It was found that the three-wave instability occurs first, which then proceeds to a nonlinear regime involving four-wave processes. Measurements of the accelerated electron spectrum suggest that higher phase velocity plasma waves are generated than when using lower frequency light. l ©2000 IEEE.

Journal article

Najmudin Z, Dangor AE, Modena A, Salvati MR, Clayton CE, Danson CN, Gordon DF, Joshi C, Marsh KA, Malka V, Muggli P, Neely D, Walsh FNet al., 2000, Investigation of a channeling high-intensity laser beam in underdense plasmas, IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 28, Pages: 1057-1070, ISSN: 0093-3813

Journal article

Krushelnick K, Clark EL, Allott R, Beg FN, Danson CN, Machacek A, Malka V, Najmudin Z, Neely D, Norreys PA, Salvati MR, Santala MIK, Tatarakis M, Watts I, Zepf M, Dangor AEet al., 2000, Ultrahigh-intensity laser-produced plasmas as a compact heavy ion injection source, IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 28, Pages: 1184-1189, ISSN: 0093-3813

Journal article

Malka V, Faure J, Marques JR, Amiranoff F, Courtois C, Najmudin Z, Krushelnick K, Salvati MR, Dangor AEet al., 2000, Interaction of ultraintense laser pulses with an underdense, preformed plasma channel, IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 28, Pages: 1078-1083, ISSN: 0093-3813

Journal article

Najmudin Z, Allott R, Amiranoff F, Clark EL, Danson CN, Gordon DF, Joshi C, Krushelnick K, Malka V, Neely D, Salvati MR, Santala MIK, Tatarakis M, Dangor AEet al., 2000, Measurement of forward Raman scattering and electron acceleration from high-intensity laser-plasma interactions at 527 nm, IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 28, Pages: 1084-1089, ISSN: 0093-3813

Journal article

Neely D, Collier JL, Allott R, Danson CN, Hawkes S, Najmudin Z, Kingham RJ, Krushelnick K, Dangor AEet al., 2000, Proposed beatwave experiment at RAL with the Vulcan CPA laser, IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 28, Pages: 1116-1121, ISSN: 0093-3813

Journal article

Faure J, Malka V, Marques JR, Amiranoff F, Courtois C, Najmudin Z, Krushelnick K, Salvati M, Dangor AE, Solodov A, Mora P, Adam JC, Heron Aet al., 2000, Interaction of an ultra-intense laser pulse with a nonuniform preformed plasma, PHYSICS OF PLASMAS, Vol: 7, Pages: 3009-3016, ISSN: 1070-664X

Journal article

Malka V, Coulaud C, Geindre JP, Lopez V, Najmudin Z, Neely D, Amiranoff Fet al., 2000, Characterization of neutral density profile in a wide range of pressure of cylindrical pulsed gas jets, REVIEW OF SCIENTIFIC INSTRUMENTS, Vol: 71, Pages: 2329-2333, ISSN: 0034-6748

Journal article

Collier JL, Neely D, Allott R, Danson CN, Hawkes S, Najmudin Z, Kingham RJ, Krushelnick K, Dangor AEet al., 2000, Simultaneous dual wavelength CPA operation of the vulcan laser for particle acceleration experiments

A chirped pulse amplification laser configuration capable of particle acceleration through the driving of a plasma beatwave into saturation before modulation instabilities can grow is reported. The configuration is based on generating a single sub-ps, broad bandwidth pulse (approximately 16 nm) and stretching and filtering to select two wavelength components (separation approximately 7 nm). The two spectral components are temporally stretched (to >100 ps) and separated (by approximately 1 ns). The pulses are then amplified in a single Nd:glass chain to greater than 15 J per pulse. Using a single pass reflective grating compressor the pulses are temporally compressed to between 2 and 5 ps and automatically synchronized. Moreover, the system is capable of introducing a chirp into the actual beat, such that the compressed pulses can compensate for relativistic detuning of the plasma wave. The optimum laser amplification and recombination configuration for generating a saturated laser driven beatwave is presented and options for future work discussed.

Conference paper

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: id=00167627&limit=30&person=true&page=8&respub-action=search.html