Dr. Gerard O'Connor

BSc PhD

Contact Details

Senior Lecturer
School of Physics
Arts/Science Building
NUI Galway

T: Ext. 2513
E: gerard.oconnor@nuigalway.ie
 
researcher

Biography

Gerard leads the NCLA laser research group at NUI Galway.  This group provides graduate research training in short pulse laser material interactions and works closely with industry on applied research projects.

Gerard graduated from NUI Galway in Experimental Physics (1989) and obtained a Ph.D in optical spectroscopy of semiconductor thin films, from NUI Galway in 1994. Following graduation, worked as a Materials Scientist with the National Microelectronics Research Centre (NMRC) in Cork.

He returned to Galway in late 1995 when he was appointed Centre Manager for the National Centre for Laser Applications (NCLA). He continued in this role until he was appointed as a Lecturer in the Department of Experimental Physics at NUI Galway in January 2005. He was appointed Senior Lecturer School of Physics in March 2007.

He leads the INSPIRE PRTLI 4 & 5 projects at NUI Galway since 2008 and 2011, respectively. He was appointed as External examiner to the University of Liverpool's Postgrauate Laser Engineering Department in 2008.

He coordinates an EU IAPP Marie Curie project Laser Connect.  He participates in an EU Photonics Clusters project ASPICE. 

Gerard is the NUI Galway Representative on the SFI supported National Access Programme at Tyndall National Institute, Cork.

In January 2011, Gerard succeeded Tom Glynn as the Academic Director of NCLA laser research group. Gerard has 34 Referreed Journal papers, 44 refereed conference publications, He has successfully supervised 7 PhD graduate students and 3 MSc Students. Gerard has research team of 8 postgraduates, 1 postdoc, 2 engineers and 1 Research manager.

Research Interests

Short pulse laser ablation using femtosecond, picosecond and nanosecond laser sources.

Hybrid digital manufacturing -particularly the interplay between additive (inkjet, spray) and subtractive (laser) techniques.

Electrical, optical and thermal stimulation of structured biomaterials.

Other interests:
Competition, value chains and innovation clusters.
Regional development through graduate education
Laser safety
 
 

Peer Reviewed Journals

  Year Publication
(2015) 'Laser patterning of very thin indium tin oxide thin films on PET substrates'
Cormac McDonnell; David Milne; Camilo Prieto; Helios Chan; Danijela Rostohar, Gerard O'Connor (2015) 'Laser patterning of very thin indium tin oxide thin films on PET substrates'. Applied Surface Science, [Details]
(2015) 'Mechanically inspired laser scribing of thin flexible glass'
Adam Collins and Gerard M. O’Connor (2015) 'Mechanically inspired laser scribing of thin flexible glass'. Optics Letters, [Details]
(2015) 'Single-pulse laser ablation threshold of borosilicate, fused silica, sapphire, and soda-lime glass for pulse widths of 500  fs, 10  ps, 20  ns'
Daniel Nieto, Justo Arines, Gerard M. O’Connor, and María Teresa Flores-Arias (2015) 'Single-pulse laser ablation threshold of borosilicate, fused silica, sapphire, and soda-lime glass for pulse widths of 500  fs, 10  ps, 20  ns'. Applied Optics, 54 (29):8596-8601 [Details]
(2015) 'The interaction of QDs with RAW264.7 cells: nanoparticle quantification, uptake kinetics and immune responses study'
Gladkovskaya, O,Gerard, VA,Nosov, M,Gun'ko, YK,O'Connor, GM,Rochev, Y (2015) 'The interaction of QDs with RAW264.7 cells: nanoparticle quantification, uptake kinetics and immune responses study'. Rsc Advances, 5 :42250-42258 [DOI] [Details]
(2015) 'Water-based size-controllable ultrasonic synthesis of SbSI needles'
Olga Gladkovskaya, I Rybina, Yurii K. Gun’ko, Gerard M. O’Connor, Andrea Erlexerban and Yury Rochev (2015) 'Water-based size-controllable ultrasonic synthesis of SbSI needles'. Materials Letters, 160 :113-116 [Details]
(2015) 'Single-pulse laser ablation threshold of borosilicate, fused silica, sapphire, and soda-lime glass for pulse widths of 500 fs, 10 ps, 20 ns'
Nieto, D,Arines, J,O'connor, GM,Flores-Arias, MT (2015) 'Single-pulse laser ablation threshold of borosilicate, fused silica, sapphire, and soda-lime glass for pulse widths of 500 fs, 10 ps, 20 ns'. Applied Optics, 54 :8596-8601 [DOI] [Details]
(2015) 'An experimental and theoretical assessment of quantum dot cytotoxicity'
Gladkovskaya, O,Greaney, P,Gun'ko, YK,O'Connor, GM,Meere, M,Rochev, Y (2015) 'An experimental and theoretical assessment of quantum dot cytotoxicity'. Toxicology Research, 4 :1409-1415 [DOI] [Details]
(2015) 'Improvement of the optical and morphological properties of microlens arrays fabricated by laser using a sol-gel coating'
Nieto, D,Gomez-Varela, AI,Martin, YC,O'Connor, GM,Flores-Arias, MT (2015) 'Improvement of the optical and morphological properties of microlens arrays fabricated by laser using a sol-gel coating'. Applied Surface Science, 351 :697-703 [DOI] [Details]
(2015) 'Sensing of p53 and EGFR Biomarkers Using High Efficiency SERS Substrates'
Peter Owens, Nigel Phillipson, Jayakumar Perumal, Gerard M. O’Connor and Malini Olivo (2015) 'Sensing of p53 and EGFR Biomarkers Using High Efficiency SERS Substrates'. Biosensors, 5 (4):664-667 [DOI] [Details]
(2015) 'In vitro study on the response of RAW264.7 and MS-5 fibroblast cells on laser-induced periodic surface structures for stainless steel alloys'
McDaniel, C,Gladkovskaya, O,Flanagan, A,Rochev, Y,O'Connor, GM (2015) 'In vitro study on the response of RAW264.7 and MS-5 fibroblast cells on laser-induced periodic surface structures for stainless steel alloys'. Rsc Advances, 5 :42548-42558 [DOI] [Details]
(2014) 'Laser scribing of thin dielectrics with polarised ultrashort pulses'
Collins, A,Rostohar, D,Prieto, C,Chan, YK,O'Connor, GM (2014) 'Laser scribing of thin dielectrics with polarised ultrashort pulses'. Optics And Lasers In Engineering, 60 :18-24 [DOI] [Details]
(2014) 'Combined anodizing and picosecond laser treatment to control the corrosion rate of biodegradable magnesium alloy AZ31'
O'Brien, BJ,Carroll, WM,Conneely, AJ,O'Connor, GM (2014) 'Combined anodizing and picosecond laser treatment to control the corrosion rate of biodegradable magnesium alloy AZ31'. Proceedings Of The Institution Of Mechanical Engineers Part L-Journal Of Materials-Design And Applications, 228 :278-287 [DOI] [Details]
(2014) 'Impact of laser wavelength on the emission of electrons and ions from thin gold films during femtosecond laser ablation'
Haustrup, N,O'Connor, GM (2014) 'Impact of laser wavelength on the emission of electrons and ions from thin gold films during femtosecond laser ablation'. Applied Surface Science, 302 :1-5 [DOI] [Details]
(2014) 'Evidence for increased incubation parameter in multi-pulse ablation of a Pt:SS alloy using a femtosecond laser at high repetition rates'
McDaniel, C,Flanagan, A,O'Connor, GM (2014) 'Evidence for increased incubation parameter in multi-pulse ablation of a Pt:SS alloy using a femtosecond laser at high repetition rates'. Applied Surface Science, 295 :1-7 [DOI] [Details]
(2012) 'Confinement of Laser-Material Interactions by Metal Film Thickness for Nanoparticle Generation'
Haustrup, N,O'Connor, GM (2012) 'Confinement of Laser-Material Interactions by Metal Film Thickness for Nanoparticle Generation'. Journal Of Nanoscience And Nanotechnology, 12 :8656-8661 [DOI] [Details]
(2012) 'Laser-based microstructuring of surfaces using low-cost microlens arrays'
Nieto, D,Vara, G,Diez, JA,O'Connor, GM,Arines, J,Gomez-Reino, C,Flores-Arias, MT (2012) 'Laser-based microstructuring of surfaces using low-cost microlens arrays'. Journal Of Micro-Nanolithography Mems And Moems, 11 [DOI] [Details]
(2012) 'Analysis of passive microfluidic mixers incorporating 2D and 3D baffle geometries fabricated using an excimer laser'
Conlisk, K,O'Connor, GM (2012) 'Analysis of passive microfluidic mixers incorporating 2D and 3D baffle geometries fabricated using an excimer laser'. Microfluidics And Nanofluidics, 12 :941-951 [DOI] [Details]
(2012) 'Impact of wavelength dependent thermo-elastic laser ablation mechanism on the generation of nanoparticles from thin gold films'
Haustrup, N,O'Connor, GM (2012) 'Impact of wavelength dependent thermo-elastic laser ablation mechanism on the generation of nanoparticles from thin gold films'. Applied Physics Letters, 101 [DOI] [Details]
(2011) 'Laser-Induced Liquefaction of Tetrafluoroethane and Sulfur Hexafluoride Gases'
Haustrup, N,Sedao, X,Conneely, AJ,O'Connor, GM (2011) 'Laser-Induced Liquefaction of Tetrafluoroethane and Sulfur Hexafluoride Gases'. Journal Of Physical Chemistry C, 115 :5028-5037 [DOI] [Details]
(2011) 'Fabrication and characterization of microlens arrays on soda-lime glass using a combination of laser direct-write and thermal reflow techniques'
Nieto, D,Arines, J,Gomez-Reino, C,O'Connor, GM,Flores-Arias, MT (2011) 'Fabrication and characterization of microlens arrays on soda-lime glass using a combination of laser direct-write and thermal reflow techniques'. Journal Of Applied Physics, 110 [DOI] [Details]
(2011) 'Application of reconfigurable pinhole mask with excimer laser to fabricate microfluidic components'
Conlisk, K,Favre, S,Lasser, T,O'Connor, GM (2011) 'Application of reconfigurable pinhole mask with excimer laser to fabricate microfluidic components'. Microfluidics And Nanofluidics, 10 :1247-1256 [DOI] [Details]
(2010) 'A laser direct write technique for fabricating microlens arrays on soda lime glass with a Nd:YVO4 laser'
Oconnor,G.M. (2010) 'A laser direct write technique for fabricating microlens arrays on soda lime glass with a Nd:YVO4 laser'. Applied Optics, 49 (26):4979-4983 [DOI] [Details]
(2010) 'Fabrication of silicon-blazed phase diffractive gratings using grey scale gallium implantation with KOH anisotropic etch'
Coyne, E,O'Connor, GM (2010) 'Fabrication of silicon-blazed phase diffractive gratings using grey scale gallium implantation with KOH anisotropic etch'. Journal Of Micromechanics And Microengineering, 20 [DOI] [Details]
(2010) 'Nanocrystalline structure of nanobump generated by localized photoexcitation of metal film'
Ivanov, DS,Lin, ZB,Rethfeld, B,O'Connor, GM,Glynn, TJ,Zhigilei, LV (2010) 'Nanocrystalline structure of nanobump generated by localized photoexcitation of metal film'. Journal Of Applied Physics, 107 [DOI] [Details]
(2010) 'Laser direct-write technique for fabricating microlens arrays on soda-lime glass with a Nd:YVO4 laser'
Nieto, D,Flores-Arias, MT,O'Connor, GM,Gomez-Reino, C (2010) 'Laser direct-write technique for fabricating microlens arrays on soda-lime glass with a Nd:YVO4 laser'. Applied Optics, 49 :4979-4983 [Details]
(2009) 'Directional ion emission from thin films under femtosecond laser irradiation'
Williams, GO,Favre, S,O'Connor, GM (2009) 'Directional ion emission from thin films under femtosecond laser irradiation'. Applied Physics Letters, 94 [DOI] [Details]
(2008) 'Expansion of a laser plume from a silicon wafer in a wide range of ambient gas pressures'
Volkov, AN,O'Connor, GM,Glynn, TJ,Lukyanov, GA (2008) 'Expansion of a laser plume from a silicon wafer in a wide range of ambient gas pressures'. Applied Physics A-Materials Science & Processing, 92 :927-932 [DOI] [Details]
(2008) 'Langmuir probe investigation of surface contamination effects on metals during femtosecond laser ablation'
Williams,G.O.,Mannion, P.M.,O'Connor,G.M., Glynn,T.J. (2008) 'Langmuir probe investigation of surface contamination effects on metals during femtosecond laser ablation'. Applied Surface Science, 254 (18):5921-5926 [Details]
(2008) 'The mechanism of nanobump formation in femtosecond pulse laser nanostructuring of thin metal films'
Ivanov, DS,Rethfeld, B,O'Connor, GM,Glynn, TJ,Volkov, AN,Zhigilei, LV (2008) 'The mechanism of nanobump formation in femtosecond pulse laser nanostructuring of thin metal films'. Applied Physics A-Materials Science & Processing, 92 :791-796 [DOI] [Details]
(2007) 'Langmuir probe diagnosis of plasma expansion in femtosecond and picosecond laser ablation of selected metals'
Oconnor,G.M. (2007) 'Langmuir probe diagnosis of plasma expansion in femtosecond and picosecond laser ablation of selected metals'. Journal of Physics Conference Series, 59 [Details]
(2007) 'Estimating spot size and relating hole diameters with fluence and number of shots for nanosecond and femtosecond laser ablation of polyethylene terephthalate'
Mullan, C,O'Connor, GM,Favre, S,Ilie, D,Glynn, TJ (2007) 'Estimating spot size and relating hole diameters with fluence and number of shots for nanosecond and femtosecond laser ablation of polyethylene terephthalate'. Journal Of Laser Applications, 19 :158-164 [Details]
(2007) 'Controlled process for polymer micromachining using designed pulse trains of a UV solid state laser'
Ilie,D.,Mullan,C.,O'Connor,G.M.,Flaherty,T.,Glynn,T.J. (2007) 'Controlled process for polymer micromachining using designed pulse trains of a UV solid state laser'. Applied Surface Science, 254 :845-849 [Details]
(2006) 'Microfabrication of Free-Standing Gallium Nitride using Laser Micromachining'
Oconnor,G.M. (2006) 'Microfabrication of Free-Standing Gallium Nitride using Laser Micromachining'. Applied Surface Science, 252 [Details]
(2006) 'Electrical analysis of femtosecond laser pulse absorption in silicon'
Coyne, E,O'Connor, GM,Glynn, TJ (2006) 'Electrical analysis of femtosecond laser pulse absorption in silicon'. European Physical Journal-Applied Physics, 34 :189-195 [DOI] [Details]
(2005) 'STEM (scanning transmission electron microscopy) analysis of femtosecond laser pulse induced damage to bulk silicon'
Coyne, E,Magee, JP,Mannion, P,O'Connor, GM,Glynn, TJ (2005) 'STEM (scanning transmission electron microscopy) analysis of femtosecond laser pulse induced damage to bulk silicon'. Applied Physics A-Materials Science & Processing, 81 :371-378 [DOI] [Details]
(2004) 'Characterisation of laser ablation of silicon using a Gaussian wavefront and computer generated wavefront reconstruction'
Coyne, E,Magee, JP,Mannion, P,O'Connor, GM,Glynn, TJ (2004) 'Characterisation of laser ablation of silicon using a Gaussian wavefront and computer generated wavefront reconstruction'. Applied Surface Science, 229 :148-160 [DOI] [Details]
(2004) 'The effect of damage accumulation behaviour on ablation thresholds and damage morphology in ultrafast laser micro-machining of common metals in air'
Mannion, PT,Magee, J,Coyne, E,O'Connor, GM,Glynn, TJ (2004) 'The effect of damage accumulation behaviour on ablation thresholds and damage morphology in ultrafast laser micro-machining of common metals in air'. Applied Surface Science, 233 :275-287 [DOI] [Details]
(2004) 'Characterisation of silicon ablation using gaussian femtosecond laser pulses and computer generated wavefront reconstruction'
Coyne,E.,Magee,J.P., Mannion,P.,O'Connor, G.M.,Glynn,T.J. (2004) 'Characterisation of silicon ablation using gaussian femtosecond laser pulses and computer generated wavefront reconstruction'. Applied Surface Science, 229 :148-160 [DOI] [Details]
(2002) 'Characterisation of an antibody coated microcantilever as a potential immuno-based biosensor'
Grogan, C,Raiteri, R,O'Connor, GM,Glynn, TJ,Cunningham, V,Kane, M,Charlton, M,Leech, D (2002) 'Characterisation of an antibody coated microcantilever as a potential immuno-based biosensor'. Biosensors & Bioelectronics, 17 :201-207 [DOI] [Details]
(2002) 'Characterisation of an antibody coated microcantilever as a potential immuno-based biosensor'
Grogan C, Raiteri R, O'Connor GM, Glynn TJ, Cunningham V, Kane M, Charlton M, Leech D (2002) 'Characterisation of an antibody coated microcantilever as a potential immuno-based biosensor'. Biosensors & Bioelectronics, 17 (3):201-207 [Details]
(2002) 'High Pressure diamond and diamond like carbon deposition using microwave CAP reactor'
Oconnor,G.M. (2002) 'High Pressure diamond and diamond like carbon deposition using microwave CAP reactor'. Diamond & Related Materials, 11 [Details]
(2000) 'Temperature dependence of InP/GaInP quantum dot photoluminescence'
Beirne, G.J., Farrell, I.L., Grogan, C.M., Connolly, J.O., O'Connor, G.M., Glynn, T.J., Thomas, K.K., Lambkin,J.D. (2000) 'Temperature dependence of InP/GaInP quantum dot photoluminescence'. MICROELECTRONIC ENGINEERING, (51-52):73-78 [Details]
(2000) 'Quantitative analysis of cocaine in solid mixtures using Raman spectroscopy and chemometric methods'
Ryder, AG,O'Connor, GM,Glynn, TJ (2000) 'Quantitative analysis of cocaine in solid mixtures using Raman spectroscopy and chemometric methods'. Journal Of Raman Spectroscopy, 31 :221-227 [Details]
(1999) 'Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis'
Ryder, AG,O'Connor, GM,Glynn, TJ (1999) 'Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis'. Journal Of Forensic Sciences, 44 :1013-1019 [Details]
(1999) 'Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis'
Alan G. Ryder, Gerard M. O’Connor, and Thomas J. Glynn. (1999) 'Identifications and quantitative measurements of narcotics in solid mixtures using near-IR Raman spectroscopy and multivariate analysis'. Journal Of Forensic Sciences, 44 (5):1013-1019 [ARAN Link] [Details]
(1997) 'Photoluminescence investigation of the carrier confining properties of multiquantum barriers'
Morrison, AP,Considine, L,Walsh, S,Cordero, N,Lambkin, JD,OConnor, GM,Daly, EM,Glynn, TJ,vanderPoel, CJ (1997) 'Photoluminescence investigation of the carrier confining properties of multiquantum barriers'. Ieee Journal Of Quantum Electronics, 33 :1338-1344 [Details]
(1995) 'Optical and electrical characterisation of He plasma sputtered n-GaAs'
Murtagh, M,Hildebrandt, S,Herbert, PAF,OConnor, GM,Crean, GM,Auret, FD,Goodman, SA,Myburg, G,Meyer, WE,Suezawa, M,KatayamaYoshida, H (1995) 'Optical and electrical characterisation of He plasma sputtered n-GaAs'. Electrochemical Methods In Corrosion Research Vi, Pts 1 And 2, 196- :1961-1965 [Details]
(1995) 'Optical and electrical characterisation of He plasma sputtered nGaAs'
Oconnor,G.M. (1995) 'Optical and electrical characterisation of He plasma sputtered nGaAs'. Defects in Semiconductors, 4 [Details]
(1995) 'A method for laser based thermal diffusivity measurement of advanced multichip module ceramic material'
Oconnor,G.M. (1995) 'A method for laser based thermal diffusivity measurement of advanced multichip module ceramic material'. IEEE Components, Packaging and Manufacturing, 18 [Details]
(1994) 'Temperature dependence of the PL intensity of ordered and disordered In0.48Ga0.52P'
Lambkin, J.D., Considine, L., Walsh, S., O'Connor, G., McDonagh, C.J.,Glynn,T.J. (1994) 'Temperature dependence of the PL intensity of ordered and disordered In0.48Ga0.52P'. APPLIED PHYSICS LETTERS, 65 :73-75 [Details]
(1994) 'TEMPERATURE-DEPENDENCE OF THE PHOTOLUMINESCENCE INTENSITY OF ORDERED AND DISORDERED IN0.48GA0.52P'
LAMBKIN, JD,CONSIDINE, L,WALSH, S,OCONNOR, GM,MCDONAGH, CJ,GLYNN, TJ (1994) 'TEMPERATURE-DEPENDENCE OF THE PHOTOLUMINESCENCE INTENSITY OF ORDERED AND DISORDERED IN0.48GA0.52P'. Applied Physics Letters, 65 :73-75 [Details]
(1994) 'DEVELOPMENT OF AN OPTICAL-MATERIALS CHARACTERIZATION FACILITY'
OCONNOR, GM,MCDONAGH, CJ,GLYNN, TJ,MORGAN, GP (1994) 'DEVELOPMENT OF AN OPTICAL-MATERIALS CHARACTERIZATION FACILITY'. Optical Engineering, 33 :3931-3936 [Details]
(1992) 'CHARACTERIZATION STUDY OF DIAMOND AND DIAMOND-LIKE CARBON'
DOWLING, DP,AHERN, MJ,KELLY, TC,MEENAN, BJ,BROWN, NMD,OCONNOR, GM,GLYNN, TJ (1992) 'CHARACTERIZATION STUDY OF DIAMOND AND DIAMOND-LIKE CARBON'. Surface & Coatings Technology, 53 :177-183 [Details]
(1991) 'LUMINESCENCE FROM FE-3+ IONS IN OCTAHEDRAL SITES IN LIGA5O8'
OCONNOR, G,MCDONAGH, C,GLYNN, TJ (1991) 'LUMINESCENCE FROM FE-3+ IONS IN OCTAHEDRAL SITES IN LIGA5O8'. Journal Of Luminescence, 48-9 :545-548 [Details]
(1991) 'RAMAN CHARACTERIZATION OF PASSIVATED GAAS-SURFACES'
OCONNOR, GM,MCDONAGH, CJ,ANDERSON, FG,GLYNN, TJ,MORGAN, GP,HUGHES, GJ,ROBERTS, L,HENRY, MO (1991) 'RAMAN CHARACTERIZATION OF PASSIVATED GAAS-SURFACES'. Applied Surface Science, 50 :312-316 [Details]
(1991) 'Investigation of the passivating effect of H2S on the GaAs (100) surface'
Hughes,G.J., Roberts,L., Henry,M.O.,McGuigan,K., O'Connor,G.M., Erson,F.G., Morgan,G.P.,Glynn,T.J. (1991) 'Investigation of the passivating effect of H2S on the GaAs (100) surface'. Materials Science and Engineering, B9 :37-41 [Details]

Conference Publications

  Year Publication
(2013) The influence of thin film grain size on the size of nanoparticles generated during UV femtosecond laser ablation of thin gold films
Haustrup, N,O'Connor, GM (2013) APPLIED SURFACE SCIENCE The influence of thin film grain size on the size of nanoparticles generated during UV femtosecond laser ablation of thin gold films , pp.86-91 [DOI] [Details]
(2010) Proceedings of the Sixth International Conference on Computational Fluid Dynamics, ICCFD6
Oconnor,G.M. (2010) Parallel Direct Simulation Monte Carlo of Two-Phase Gas-Droplet Laser Plume Expansion from the Bottom of a Cylindrical Cavity into an Ambient Gas Proceedings of the Sixth International Conference on Computational Fluid Dynamics, ICCFD6 St Petersburg, Russia, , 12-JUL-10 - 16-JUL-10 [Details]
(2009) SPIE Optical Measurement Systems for Industrial Inspection VI
Oconnor,G.M. (2009) A novel fiber-based technique for inspection of holes in narrow-bore tubes SPIE Optical Measurement Systems for Industrial Inspection VI [Details]
(2008) Fundamentals of Laser Assisted Micro- and Nanotechnologie
Oconnor,G.M. (2008) Laser-induced plume expansion from a silicon wafer in a wide range of ambient gas pressure Fundamentals of Laser Assisted Micro- and Nanotechnologie [Details]
(2007) Controlled process for polymer micromachining using designed pulse trains of a UV solid state laser
Ilie, D,Mullan, C,O'Connor, GM,Flaherty, T,Glynn, TJ (2007) APPLIED SURFACE SCIENCE Controlled process for polymer micromachining using designed pulse trains of a UV solid state laser , pp.845-849 [DOI] [Details]
(2007) Proc ICALEO
Oconnor,G.M. (2007) Characteristics of High-Aspect Ratio Nanosecond Laser Ablation of Silicon at 355nm Wavelength Proc ICALEO [Details]
(2007) Proc ICALEO
Oconnor,G.M. (2007) Benefits of Non-Polar Assist Liquids as Alternatives to Water Assist in the Laser Machining of Silicon Proc ICALEO [Details]
(2007) SPIE Photonics West Laser-based Micro- and Nanopackaging and Assembly
Oconnor,G.M. (2007) Machining hole arrays in polyimide using a UV solid state laser and predetermined temporal pulse patterns SPIE Photonics West Laser-based Micro- and Nanopackaging and Assembly [Details]
(2006) Microfabrication in free-standing gallium nitride using UV laser micromachining
Gu, E,Howard, H,Conneely, A,O'Connor, GM,Illy, EK,Knowles, MRH,Edwards, PR,Martin, RW,Watson, IM,Dawson, MD (2006) APPLIED SURFACE SCIENCE Microfabrication in free-standing gallium nitride using UV laser micromachining , pp.4897-4901 [DOI] [Details]
(2005) SPIE OptoIreland: Laser-based Materials Processing
Oconnor,G.M. (2005) Development of a prediction equation for depth, aspect ratio and trench roughness pertaining to excimer laser ablation of polymer materials SPIE OptoIreland: Laser-based Materials Processing , pp.515-522 [Details]
(2005) SPIE OptoIreland: Laser-based Materials Processing
Oconnor,G.M. (2005) Excimer Laser and Lamp-based Techniques Applied to the Nanostructuring of Biomaterials SPIE OptoIreland: Laser-based Materials Processing , pp.489-504 [Details]
(2005) SPIE Photonics West, Jan Jose
Oconnor,G.M. (2005) Scope for electric and magnetic assisted removal of ablated debris from laser machined features SPIE Photonics West, Jan Jose [Details]
(2005) SPIE Photonics Fabrication, Integration and Packaging
Oconnor,G.M. (2005) A comparative study of channel formation in polymer materials using VUV and UV nano-second laser sources for use in micro-fluidic applications SPIE Photonics Fabrication, Integration and Packaging , pp.622-633 [Details]
(2005) SPIE OptoIreland: Laser-based Materials Processing
Oconnor,G.M. (2005) Cumulative damage effects in different machining strategies for 2.5D laser micro structuring of polyimide SPIE OptoIreland: Laser-based Materials Processing , pp.527-536 [Details]
(2005) SPIE OptoIreland: Laser-based Materials Processing
Oconnor,G.M. (2005) Langmuir probe study of plasma expansion in femtosecond pulsed laserablation of silver SPIE OptoIreland: Laser-based Materials Processing , pp.457-466 [Details]
(2005) SPIE OptoIreland: Laser-based Materials Processing
Oconnor,G.M. (2005) Laser-Based Workstation for the Manufacture of Fused Biconical Tapered Coupler Device SPIE OptoIreland: Laser-based Materials Processing , pp.505-514 [Details]
(2005) Laser in Manufacturing 2005
Oconnor,G.M. (2005) The interaction of nanosecond UV laser pulses with polyimide and  machining strategies for optimising micro-features Laser in Manufacturing 2005 , pp.551-556 [Details]
(2005) SPIE OptoIreland: Laser-based Materials Processing
Oconnor,G.M. (2005) Computer modelling of short pulse laser nanostructuring of metal surfaces SPIE OptoIreland: Laser-based Materials Processing , pp.457-466 [Details]
(2005) Laser in Manufacturing 2005
Oconnor,G.M. (2005) Experimental investigation of micromachining on metals with pulse durations in the range of the electron-phonon relaxation time (pico to subpicosecond) Laser in Manufacturing 2005 , pp.521-526 [Details]
(2005) SPIE Photonics West, Jan Jose
Oconnor,G.M. (2005) Wave-front correction of a femtosecond laser using a deformable mirror SPIE Photonics West, Jan Jose [Details]
(2005) SPIE OptoIreland: Laser-based Materials Processing
Oconnor,G.M. (2005) Percussion drilling of polyimide using VUV and UV solid state lasers SPIE OptoIreland: Laser-based Materials Processing , pp.475-485 [Details]
(2004) Photon Processing in Microelectronics and Photonics III, Proc SPIE Vol
Oconnor,G.M. (2004) Analysis of thermal damage in bulk silicon with femtosecond laser micromachining Photon Processing in Microelectronics and Photonics III, Proc SPIE Vol , pp.73-78 [Details]
(2004) Photon Processing in Microelectronics and Photonics III Proc SPIE
Oconnor,G.M. (2004) Analysis of debris generated during UV laser micro-machining of silicon Photon Processing in Microelectronics and Photonics III Proc SPIE , pp.241-249 [Details]
(2004) Proc of Conference on High Power Laser Ablation
Oconnor,G.M. (2004) Onset of phase explosion and the role of damage accumulation in ultrafast laser processing of metals in air Proc of Conference on High Power Laser Ablation , pp.961-972 [Details]
(2004) SPIE Photonics North Conference (Ottawa)
Oconnor,G.M. (2004) Analysis of entrapped debris during femtosecond machining of metals SPIE Photonics North Conference (Ottawa) , pp.632-641 [Details]
(2003) Optics & Photonics Technologies and Applications, SPIE Proceedings
Oconnor,G.M. (2003) A study of femtosecond laser interaction with wafer grade silicon Optics & Photonics Technologies and Applications, SPIE Proceedings , pp.487-499 [Details]
(2003) Optics & Photonics Technologies and Applications, SPIE Proceedings
Oconnor,G.M. (2003) Method for the determination of the focussed spot size of industrial laser beams based on the drilling of holes in mylar film Optics & Photonics Technologies and Applications, SPIE Proceedings , pp.541-552 [Details]
(2003) Optics & Photonics Technologies and Applications, SPIE Proceedings
Oconnor,G.M. (2003) Application of Spectral Reflectivity to the Measurement of Thin-Film Thickness Optics & Photonics Technologies and Applications, SPIE Proceedings , pp.976-983 [Details]
(2003) Optics & Photonics Technologies and Applications, SPIE Proceedings
Oconnor,G.M. (2003) Development & application of an ultrafast laser micro-machining workstation Optics & Photonics Technologies and Applications, SPIE Proceedings , pp.553-563 [Details]
(2003) Optics & Photonics Technologies and Applications, SPIE Proceedings
Oconnor,G.M. (2003) Ablation thresholds and feature quality in ultrafast laser micro-machining of common metals in air Optics & Photonics Technologies and Applications, SPIE Proceedings , pp.470-478 [Details]
(2000) Temperature dependence of InP/GaInP quantum dot photoluminescence
Beirne, GJ,Farrell, IL,Grogan, CM,Connolly, JO,O'Connor, GM,Glynn, TJ,Thomas, KK,Lambkin, JD (2000) MICROELECTRONIC ENGINEERING Temperature dependence of InP/GaInP quantum dot photoluminescence , pp.73-78 [Details]
(2000) Proceedings Conference on High-power Lasers and Applications (SPIE)
Oconnor,G.M. (2000) Optical monitoring of laser generated plasma during laser heating Proceedings Conference on High-power Lasers and Applications (SPIE) , pp.132-138 [Details]
(2000) InGaP/GaAs heterojunction bipolar transistor optical and electronic band structure characterization
Murtagh, M,Beechinor, JT,Cordero, N,Kelly, PV,Crean, GM,Farrell, IL,O'Connor, GM,Bland, SW (2000) THIN SOLID FILMS InGaP/GaAs heterojunction bipolar transistor optical and electronic band structure characterization , pp.58-63 [Details]
(1996) Key Engineering Technologie
Oconnor,G.M. (1996) Temperature dependence of the luminescence from InP/InGaAs quantum-wells Key Engineering Technologie , pp.157-163 [Details]
(1996) Material characterisation using optical spectroscopic techniques
OConnor, GM,McDonagh, CJ,Glynn, TJ,Morgan, GP (1996) JOURNAL OF MATERIALS PROCESSING TECHNOLOGY Material characterisation using optical spectroscopic techniques , pp.211-221 [Details]
(1995) Proceedings of SPIE
Oconnor,G.M. (1995) Characterisation of excimer lamp photodeposition of ultrathin oxynitride films Proceedings of SPIE [Details]
(1995) A methodology for laser-based thermal diffusivity measurement of advanced multichip module ceramic materials
Kehoe, L,Kelly, PV,OConnor, GM,OReilly, M,Crean, GM (1995) IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY PART A A methodology for laser-based thermal diffusivity measurement of advanced multichip module ceramic materials , pp.773-780 [Details]
(1994) Proc 22nd Inernational Conference on Physics of Semiconductors
Oconnor,G.M. (1994) Energy band structure of Type I and Type II InGaP/InAlP short period superlattices Proc 22nd Inernational Conference on Physics of Semiconductors [Details]
(1993) Proc Conf Advanced Materials & Processing Technologies
Oconnor,G.M. (1993) Material characterisation using optical spectroscopic techniques Proc Conf Advanced Materials & Processing Technologies [Details]
(1991) AN INVESTIGATION OF THE PASSIVATING EFFECTS OF HYDROGEN-SULFIDE ON THE GAAS(100) SURFACE
HUGHES, GJ,ROBERTS, L,HENRY, MO,MCGUIGAN, K,OCONNOR, GM,ANDERSON, FG,MORGAN, GP,GLYNN, T (1991) MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY AN INVESTIGATION OF THE PASSIVATING EFFECTS OF HYDROGEN-SULFIDE ON THE GAAS(100) SURFACE , pp.37-41 [Details]

Professional Associations

  Association Function From / To
The International Society for Optical Engineering (SPIE) Member 01-JAN-97 / 01-FEB-08
Laser Institute of America Member 01-MAY-97 / 01-MAY-07

Committees

  Committee Function From / To
Nanonet Ireland Member, promotion of nanoscience in Ireland. /
National Access Programme, Tyndall National Institute Committee member, assess project applications 01-JAN-08 /
Integrated Nanoscience Network for Ireland (INSPIRE) Board member 01-JAN-07 /

Teaching Interests

PH 356: Quantum Physics - 3rd year course on basic principals of quantum physicsPH 333: Properties of Materials - 3rd year course on fundamentals of materials science and engineering
PH 458: Nanotechnology - 4th year course on nanoscale fabrication of nano-electronics, nano-photonics and bio-nanosceince.PH 422: Solid State Physics -4t year course on hard condensed matter. EP 525: Laser Technology: Postgraduate course on laser technology for medical device manufacturing. 
GS 502: Journal / book club on two text books (On Competition - Michael Porter, Scalable Innovation -Eugene Shteyn, Max Shtein) 
Programme Director. MSc by Research in Key Enabling Technologies