Laser double optical resonance excitation-ionization of Mo with optogalvanic detection. Lu, H; Varvarezos, L; Nicolosi, P; Andrighetto, A; Scarpa, D; Mariotti, E; Costello, J.T. Physica Scripta 2022
Laser Plasmas and Spectroscopy
Our research is focused on the interaction of intense lasers with matter, in all of its forms. Current applications include finding novel materials for next generation semiconductor manufacturing and laser based methods for contaminant analysis and removal from wind turbine blades.
About the Research Area
When an intense laser interacts with matter (in all of its forms), a set of complex optical and plasma processes are set in motion. By spectroscopically analysing the light emitted (or absorbed) during the interaction these processes can be understood, and even manipulated. A host of applications are enabled in areas as diverse as energy generation, manufacturing, novel materials and environmental monitoring. We collaborate widely with international laboratories and industrial partners on all aspects of the work from theory to experiment to translation.
Research Projects
Laser Clean Project – https://laserclean.ie/
Laser Plasmas and Spectroscopy Publications
Clocking Auger electrons. Haynes, D.C; Wurzer, M; Schletter, A; Al-Haddad, A; Blaga, C; Bostedt, C; Bozek, J; Bromberger, H; Bucher, M; Camper, A; Carron, S; Coffee, R; Costello, J.T; DiMauro, L.F; Ding, Y; Ferguson, K; Grguraš, I; Helml, W; Hoffmann, M.C; Ilchen, M; Jalas, S; Kabachnik, N.M; Kazansky, A.K; Kienberger, R; Maier, A.R; Maxwell, T; Mazza, T; Meyer, M; Park, H; Robinson, J; Roedig, C; Schlarb, H; Singla, R; Tellkamp, F; Walker, P.A; Zhang, K; Doumy, G; Behrens, C; Cavalieri, A.L. Nature Physics 2021
Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet. Varvarezos, L; Düsterer, S; Kiselev, M.D; Boll, R; Bomme, C; De Fanis, A; Erk, B; Passow, C; Burkov, S.M; Hartmann, G; Ilchen, M; Johnsson, P; Kelly, T.J; Manschwetus, B; Mazza, T; Meyer, M; Rompotis, D; Zatsarinny, O; Gryzlova, E.V; Grum-Grzhimailo, A.N; Costello, J.T. Physical Review A 2021
Ionization – dissociation of methane in ultrashort 400 nm and 800 nm laser fields. Varvarezos, L; Costello, J.T; Long, C; Achner, A.J; Wagner, R; Meyer, M; Grychtol, P. Chemical Physics Letters 2021
Photoionization cross-sections of carbon-like n+ near the k-edge (390–440 ev). Mosnier, J.-P; Kennedy, E.T; Bizau, J.-M; Cubaynes, D; Guilbaud, S; Blancard, C; McLaughlin, B.M. Atoms 2021
Special issue “interaction of ionizing photons with atomic and molecular ions”. Kennedy, E.T; Costello, J.T; Mosnier, J.-P. Atoms 2021
Reply to comment on ‘The 5d → 6p photoabsorption spectra of Pb II and Bi III: Evidence of excited states’ by A. N Ryabtsev. Lu, H; Varvarezo, L; Alli, M.B; Nicolosi, P; Costello, J.T; Hayden, P. Journal of Physics B: Atomic, Molecular and Optical Physics 2021
The effect of confinement angle on self-colliding aluminium laser plasmas using spectrally resolved fast imaging. Varvarezos, L; Davitt, S.J; Costello, J.T; Kelly, T.J. Materials 2020
Vibrationally and spin-orbit-resolved inner-shell X-ray absorption spectroscopy of the NH+ molecularion: Measurements and ab initio calculations. Carniato, S; Bizau, J.-M; Cubaynes, D; Kennedy, E.T; Guilbaud, S; Sokell, E; McLaughlin, B; Mosnier, J.-P. Atoms 2020
The 5d → 6p EUV photoabsorption spectra of Pb II and Bi III: evidence of excited states. Lu, H; Varvarezos, L; Alli, M.B; Nicolosi, P; Costello, J.T; Hayden, P. Journal of Physics B: Atomic, Molecular and Optical Physics 2020
Recombination contributions to the anisotropic emission from a laser produced copper plasma. Wubetu, G.A; Kelly, T.J; Hayden, P; Fiedorowicz, H; Skrzeczanowski, W; Costello, J.T. Journal of Physics B: Atomic, Molecular and Optical Physics 2020
Soft X-ray photoabsorption spectra of photoionized CH4 and CO2 plasmas. Varvarezos, L; Lu, H; Costello, J.T; Bartnik, A; Wachulak, P; Fok, T; Wgrzyński, Ł; Fiedorowicz, H. Journal of Physics B: Atomic, Molecular and Optical Physics 2020
K-shell Photoionization of the N+, NH+ and NH2+ ions. McLaughlin, B.M; Mosniert, J.P; Kennedy, E.T; Sokell, E; Bizau, J.M; Cubaynes, D; Guilbaud, S; Carniato, S. Journal of Physics: Conference Series 2020
Oxygen K-shell photoabsorption spectra of photoionized CO2 plasmas. Varvarezos, L; Lu, H; Costello, J.T; Bartnik, A; Wachulak, P; Fok, T; Wgrzyński, Ł; Fiedorowicz, H. Journal of Physics B: Atomic, Molecular and Optical Physics 2020
Vacuum ultraviolet laser induced breakdown spectroscopy for detecting sulphur in thermally aged transformer insulation material. Neettiyath, A; Alli, M.B; Hayden, P; Vasa, N.J; Sarathi, R; Costello, J.T. Spectrochimica Acta – Part B Atomic Spectroscopy 2020
Stable nano-silver colloid production via Laser Ablation Synthesis in Solution (LASiS) under laminar recirculatory flow. Freeland, B; McCann, R; Alkan, G; Friedrich, B; Foley, G; Brabazon, D. Advances in Materials and Processing Technologies 2020
High-efficiency generation of nanomaterials via laser ablation synthesis in solution with in-situ diagnostics for closed-loop control. Freeland, B; McCann, R; Foley, G; Brabazon, D. Proceedings of SPIE – The International Society for Optical Engineering 2020
Two-color XUV+NIR femtosecond photoionization of neon in the near-threshold region. Düsterer, S; Hartmann, G; Bomme, C; Boll, R; Costello, J.T; Erk, B; De Fanis, A; Ilchen, M; Johnsson, P; Kelly, T.J; Manschwetus, B; Mazza, T; Meyer, M; Passow, C; Rompotis, D; Varvarezos, L; Kazansky, A.K; Kabachnik, N.M. New Journal of Physics 2019
A comparative study on ionization-induced dissociation of methane, irradiated by 800 nm and 400 nm laser fields. Varvarezos, L; Achner, A; Wagner, R; Rivas, D.E; Costello, J.T; Meyer, M; Grychtol, P. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 2019
Chemical surface modification of polyethylene terephthalate (PET) films using extreme ultraviolet. Ahad, I.U; Murtaza, A; Sreenilayam, S; Budner, B; Bartnik, A; Fiedorowicz, H; Aqeel-Ur-Rehman| Brabazon, D. AIP Conference Proceedings 2019
Ion energy distribution from colliding laser plasmas. Doherty, C.B; Kelly, M; Donnelly, T; Lunney, J.G; Costello, J.T. Journal of Physics: Conference Series 2019
Colliding laser plasmas formed in air. Davitt, S.J; Walsh, N; Kelly, T.J; Costello, J.T. Journal of Physics: Conference Series 2019
Population modelling of the He II energy levels in tokamak plasmas: I. Collisional excitation model. 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Hidalgo, C; Highcock, E.G; Hill, M; Hillairet, J; Hillesheim, J; Hillis, D. Journal of Physics B: Atomic, Molecular and Optical Physics 2019
Vibrational effects in the photo-ion yield spectrum of the SiH2+ molecular ion following 2p inner-shell excitation. Kennedy, E.T; Mosnier, J.P; Van Kampen, P; Bizau, J.M; Cubaynes, D; Guilbaud, S; Carniato, S; Puglisi, A; Sisourat, N. Journal of Physics: Conference Series 2019
VUV photoabsorption spectra of Pb and Bi ions using dual laser plasma technique. Lu, H; Hayden, P; Nicolosi, P; Costello, J. Journal of Physics: Conference Series 2019
Threshold fluences for conditioning, fatigue and damage effects of DKDP crystals. Li, Y; Zhu, D; Zhang, Q; Brabazon, D. Optical Materials 2019
X-rays put molecules into a spin. Costello, J.T; Manson, S.T. Proceedings of the National Academy of Sciences of the United States of America 2019
A compact Fourier transform spectrometer with no moving parts for laser induced breakdown spectroscopy. Davitt, S.J; Costello, J.T; Kelly, T.J. Journal of Physics: Conference Series 2019
Space integrated, time resolved studies of the formation of aluminium (II) oxide in laser produced plasmas. Kelly, T.J; Walsh, N; Costello, J.T. Journal of Physics: Conference Series 2019
Aluminium thin films depth profiling using LIBS. Zehra, S.S; Nicolosi, P; Costello, J; Hayden, P. Journal of Physics: Conference Series 2019