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Professor James Lunney

Professor (Physics)

Born 23rd of June 1953, in Fermanagh, in Northern Ireland.
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Member of Optical Society of America
Fellow of the Institute of Physics
J. R. Creel and J. G. Lunney, Compression and heating of a laser-produced plasma using single and double induction coils, Applied Physics , 124, 2018, p124 - 131, Journal Article, PUBLISHED  DOI
I Mirza, D.McCloskey, W. J. Blau and J. G. Lunney, 197. Mechanism of large optical nonlinearity in gold nanoparticle films, Optics Letters, 43, (7), 2018, p1455 - 1458, Journal Article, PUBLISHED
T. M. Khan, M. A, Mujawar, K. E. Siewerska, A. Pokle, T. Donnelly, N. McEvoy, G. S. Duesberg and J. G. Lunney, Atmospheric pulsed laser deposition and thermal annealing of plasmonic silver nanoparticle films, Nanotechnology, 28, 2017, p445601-1 - 445601-11, Journal Article, PUBLISHED  DOI
Creel J.R, Donnelly T, Lunney J.G, Heating and compression of a laser produced plasma in a pulsed magnetic field, Applied Physics Letters, 109, (7), 2016, Notes: [Export Date: 27 January 2017], Journal Article, PUBLISHED  TARA - Full Text  DOI  URL
Cullen R.J, Jayasundara D.R, Baker R.J, O'Connell G, Donnelly T, Ballantine K.E, Lunney J.G, Colavita P.E, Laser-driven rapid functionalization of carbon surfaces and its application to the fabrication of fluorinated adsorbers, RSC Advances, 6, (86), 2016, p82924 - 82932, Notes: [Cited By :1 Export Date: 9 January 2017], Journal Article, PUBLISHED  DOI  URL
Darcy, R.T., Lunney, J.G., Donegan, J.F., Internal conical diffraction of a top-hat beam, Proceedings of CLEO_QELS 2015, CLEO: QELS - Fundamental Science, CLEO_QELS 2015, San Jose; United States, 10 -15 May 2015 , 2015, pp1551-, Conference Paper, PUBLISHED
R. T. Darcy, J. G. Lunney and J. F. Donegan, Observation of a new interference phenomena in internal conical diffraction, Optics Express, 23, 2015, p11290-, Journal Article, PUBLISHED  TARA - Full Text  DOI
R. T. Darcy, D. McCloskey, K. E. Ballantine, J. G. Lunney, P. R. Eastham and J. F. Donegan, Conical diffraction intensity profiles generated using a top-hat input beam, Optics Express, 22, (9), 2014, p11290-, Journal Article, PUBLISHED  TARA - Full Text  DOI
Yim, CY, O'Brien, M, McEvoy, N, Winters, S, Mirza, I, Lunney, JG, Duesberg, GS, Investigation of the optical properties of MoS2 thin films using spectroscopic ellipsometry, Applied Physics Letters, 104, (10), 2014, p103114-, Journal Article, PUBLISHED  TARA - Full Text  DOI
Mirza,Inam I., O'Connell,Gearoid G., Wang,J. J. J.J., Lunney,James G. J.G., Comparison of nanosecond and femtosecond pulsed laser deposition of silver nanoparticle films, Nanotechnology, 25, (26), 2014, Journal Article, PUBLISHED  DOI

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Award Date
Elected Fellow of Trinity College 1992
Elected Fellow of the Institute of Physics 1993
My research in physics has been mainly focussed on the interaction of high power lasers with materials. During my Ph. D studies at the Rutherford Laboratory I used very large and powerful lasers to heat materials to very high temperature for laser fusion studies and X-ray laser development. I made some of the first X-ray spectroscopic measurements on laser imploded micro-balloons and observed for the first time density-dependent dielectronic satellite line emission. On joining the Department of Physics at Trinity College I was able to continue some of this work on plasma spectroscopy, and I applied some of these techniques to dense Z-pinch plasma experiments at Imperial College, London. I also published 4 important papers on: . a new pumping scheme for an X-ray laser, . a new spectroscopic method for diagnosing high density plasmas, . time-resolved X-ray diffraction from laser heated crystals, and . a method for wave-guiding in X-ray laser experiments, which has been demonstrated in large laser laboratories in US and Japan In 1986 I established a new programme of research on laser processing of materials at Trinity College. Together with my research students, we have made contributions on a number of topics in this field: . laser ablative etching of polymers and inorganic materials, . laser glazing of metallic alloys, . laser chemical vapour deposition, and . pulsed laser deposition of thin films. We were the first group in Ireland to use the pulsed laser deposition (PLD) to make thin films. PLD is a highly flexible technique for the preparation of complex materials for research. We have used the technique to make thin films of a wide range of superconducting, magnetic, semiconducting and metallic materials for several EU and nationally-funded projects with Prof. Coey and Prof. Blau. We have also shown that it is possible to use PLD to make ultra-thin multilayer films for the fabrication of multilayer mirrors and magneto-resistive devices. My group has made significant contributions on the physics of the laser ablation process. In particular, we have made important contributions to the study of laser ablation plasmas using Langmuir probes. Using these probes we have shown that in PLD the ablated vapour is substantially ionised because of strong absorption of the laser in that material. We have also been able to validate the use of adiabatic isentropic models for describing the plasma expansion. This work has benefited from a strong collaboration with Prof J. Schou at Risoe National Laboratory in Denmark We have used PLD can to prepare films wide-bandgap semiconductors such as GaN and ZnO. Some of this work has been done in collaboration with researchers at Dublin City University. We are now exploring the potential of doping these materials to semiconducting thin films that are ferromagnetic at room temperature. Such materials may prove to be important in the emerging field of spin electronics. I also have a continuing interest in finding new applications for laser ablation, such as using it to provide the gas load for pulsed discharge plasma creation schemes. In this context I was partner in an EU-funded TMR contract on in capillary discharges for pulsed X-ray sources.