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Professor James Gerard Lunney

Fellow Emeritus (Physics)


Born 23rd of June 1953, in Fermanagh, in Northern Ireland.
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Details Date From Date To
Member of Optical Society of America
Fellow of the Institute of Physics
Weiming Su, James G. Lunney, Rocco Lupoi, Atmospheric pressure glow discharge plasma sintering of solvent-free silver lines made by laser ablation dry aerosol printing, CIRP Annals - Manufacturing Technology, 71, (1), 2023, p153 - 156, Journal Article, PUBLISHED  DOI
Khan, T.M. and Lunney, J.G., Applications of DBD plasma jets in the advanced nanomaterials and COVID-19 pandemic, 2022, 105-136pp, Notes: [cited By 0], Book, PUBLISHED  DOI
Govindassamy, G.A. and Prentice, J.J. and Lunney, J.G. and Eason, R.W. and Mackenzie, J.I., Effect of laser repetition rate on the growth of Sc2O3 via pulsed laser deposition, Applied Physics A: Materials Science and Processing, 128, (7), 2022, Notes: [cited By 1], Journal Article, PUBLISHED  DOI
Tony Donnelly, Gearoid O'Connell, James G. Lunney, Metal Nanoparticle Film Deposition by Femtosecond Laser Ablation at Atmospheric Pressure, Nanomaterials, 10, 2020, Journal Article, PUBLISHED  TARA - Full Text  DOI
Hoque, M.K. and Behan, J.A. and Creel, J. and Lunney, J.G. and Perova, T.S. and Colavita, P.E., Reactive Plasma N-Doping of Amorphous Carbon Electrodes: Decoupling Disorder and Chemical Effects on Capacitive and Electrocatalytic Performance, Frontiers in Chemistry, 8, 2020, Notes: [cited By 0], Journal Article, PUBLISHED  TARA - Full Text  DOI
Fanning, Eoin and Donnelly, Tony and Lunney, James G. and Murray, Darina B. and Persoons, Tim, Application of gaseous laser-induced fluorescence in low-temperature convective heat transfer research, Experiments in Fluids, 61, (5), 2020, Journal Article, PUBLISHED  DOI
Doherty, C.B. and Kelly, M. and Donnelly, T. and Lunney, J.G. and Costello, J.T., Ion energy distribution from colliding laser plasmas, 1289, (1), 2019, Notes: [cited By 0], Conference Paper, PUBLISHED  DOI
J. Jadwiszczak, G. Li, C. P. Cullen, J. J. Wang, P. Maguire, G. S. Duesberg J. G. Lunney and H. Zhang, Photoresponsivity enhancement in monolayer MoS2 by rapid O2:Ar plasma treatment, Applied Physics Letters, 114, (09), 2019, p091103-1 - 091103-5, Journal Article, PUBLISHED  DOI
T. M. Khan, J. G. Lunney, D. O'Rourke, M.-C. Meyer, J. R. Creel and K. E. Siewierska, Various pulsed laser deposition methods for preparation of silver-sensitised glass and paper substrates for surface-enhanced Raman spectroscopy, Applied Physics A, 125, 2019, p659-1 - 659-7, Journal Article, PUBLISHED  DOI
J. R. Creel, T. Donnelly and J. G. Lunney, Device for inductive heating and focusing of laser produced plasma, Review of Scientific Instruments, 90, (09), 2019, p093506-1 - 093506-8, Journal Article, PUBLISHED  TARA - Full Text  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.