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Dr. John Hegarty

Fellow Emeritus (Fellows Emeritii)

 


  2ND-ORDER NEURAL NETWORK   ABSORPTION   ABSORPTION SPECTROSCOPY   ALGAAS   ALLOGRAFT RECIPIENTS   ANTI-D   ANTI-D IMMUNOGLOBULIN   ANTIGEN   ARRAYS   ASSOCIATION   ASSOCIATIVE MEMORIES   ASYMMETRIC FABRY-PEROT MODULATORS   B VIRUS   BETA-CHAIN   BISTABILITY   BLOOD MONONUCLEAR-CELLS   BONE-MARROW   CARBON DIOXIDE SENSORS   CARRIER   CARRIER TRANSPORT   CARRIERS   CAVITY INJECTION-LASER   CAVITY POLARITON   CAVITY POLARITONS   CD3   CD4(-)8(-)   CD8 ALPHA(+)BETA(-)   CELL-MIGRATION   CELLULAR NEURAL NETWORKS   CHAOS   CHIMERISM   CHIP   CHRONIC ACTIVE HEPATITIS   CIRCUITS   CIRRHOSIS   CLEARANCE   CLOCK EXTRACTION   CLOCK RECOVERY   CLOCKS   COMMUNICATION SYSTEMS   CONFINEMENT   CONFOCAL MICROSCOPY   CONTINUOUS INFUSION   CYSTIC FIBROSIS   CYTOKINE   CYTOKINE SECRETION   CYTOKINES   DECAY   DELETION DELTA-DELTA-F508   DEPENDENCE   DEVICE   DFB LASER DIODES   DFB LASERS   DIODE   DIODE-LASER   DIODE-LASERS   DIRECT-VIEW MICROSCOPY   DISPERSION   DISTRIBUTED FEEDBACK LASER DIODES   DISTRIBUTED FEEDBACK LASERS   DISTRIBUTED-BRAGG-REFLECTOR   DOPED FLUOROZIRCONATE FIBER   DYNAMICS   EMISSION   EPITAXIAL-GROWTH   EPITAXY   EXCITON TRANSFER   EXCITONS   EXPERIMENTAL AXIAL RESPONSE   EXPRESSION   EXTENDED TUNING RANGE   FABRICATION   FIBRE BRAGG GRATING   FIBRE LASER   FIBRE OPTICAL SENSORS   FLUORESCENCE   FREQUENCY   FREQUENCY RESPONSE   FREQUENCY-DIVISION   GAAS   GAIN   GAIN SPECTRA   GALLIUM ARSENIDE   GALLIUM NITRIDE   GAMMA DELTA TCR   GAMMA-DELTA   GAS   GAS SENSING   GAS SENSOR   GAS SENSORS   GREEN LASER-DIODE   GREEN LASER-DIODES   GREEN LIGHT EMITTERS   HEPARIN   HEPATIC VENOOCCLUSIVE DISEASE   HETEROSTRUCTURES   HIGH BRIGHTNESS   HIGH CONTRAST   HIGHER-ORDER NETWORKS   HOT-ELECTRON TRANSFER   HUMAN LIVER   HYDROGEN SULFIDE SENSORS   II-VI SEMICONDUCTORS   IMMUNE-RESPONSES   INDEX CHANGE   INDUCTION   INJECTION   INSERTION LOSS   INTERLEUKIN-10   INTRAEPITHELIAL LYMPHOCYTES   LASER   LASER DIODE   LASER-DIODE   LASER-DIODES   LASERS   LATERAL INHIBITION   LIFETIME   LIGHT BUDGET   LIGHT EMISSION   LIGHT-EMISSION   LIGHT-EMITTING DIODES   LINE-SHAPES   LINEWIDTH   LINEWIDTHS   LITHOGRAPHY   LIVER DISEASE   LOCALIZATION   LONGITUDINAL MODE CONTROL   LOW INSERTION-LOSS   LOW-VOLTAGE   LUMINESCENCE   LYMPHOCYTES   Laser technology   Lasers and Masers   MESFETS   METHANE   METHANE DETECTION   MHC   MICE   MICROCAVITY   MODEL   MODULATION   MODULATORS   MOLECULAR-BEAM EPITAXY   MOLECULAR-BEAM-EPITAXY   MULTIPLE QUANTUM WELLS   MUTATION   N-TYPE   NEGATIVE DIFFERENTIAL RESISTANCE   NEURAL NETWORK   NEURAL NETWORKS   NOISE   NONLINEARITIES   OE-VLSI   OPTICAL CLOCK EXTRACTION   OPTICAL COMMUNICATIONS   OPTICAL IMPLEMENTATION   OPTICAL INTERCONNECTS   OPTICAL MODULATORS   OPTICAL NEURAL NETWORKS   OPTICAL SECTIONING STRENGTH   OPTICAL-COMPONENTS   OPTIMIZATION   OPTOELECTRONICS   P-TYPE ZNSE   PERIPHERAL-BLOOD   PHOTOLUMINESCENCE   POPULATIONS   PREVENTION   QUANTUM-WELL DEVICES   QUANTUM-WELLS   RADIATIVE RECOMBINATION   RATIO-GREATER-THAN-100-1   RECEPTOR-ALPHA/BETA(+) CELLS   REFLECTION MODULATOR   REFLECTION MODULATORS   RELAXATION   RESONANCE RAMAN-SCATTERING   RISK-FACTORS   ROOM-TEMPERATURE   SELF-LINEARIZED SEED   SELF-PULSATING DIODES   SELF-PULSATION PHYSICS   SELF-PULSATION SYNCHRONISATION   SEMICONDUCTOR LASER DIODES   SEMICONDUCTOR LASERS   SEMICONDUCTOR-LASERS   SEMICONDUCTORS   SINGLE-FREQUENCY LASER DIODE   SMART-PIXELS   SPECTROSCOPY   SPONTANEOUS EMISSION   SUPERLATTICES   SUSTAINED PULSATION   SYNCHRONIZATION   Semiconductor optoelectronics   Semiconductor physics and technologies   T-CELL DIFFERENTIATION   TEMPERATURE   TRANSISTOR   TRIAL   VENOCCLUSIVE DISEASE   VOLTAGE   WAVEGUIDE   WAVELENGTH MODULATION SPECTROSCOPY   WELL SEMICONDUCTOR-LASER   ZNSE
Details Date
Chair of the Deans/Vice Presidents for Research under CHIU 2000
Co-Founder and Director of Optronics Ireland 1989-2000
Coordinator of European Consortium on Microcavities 1993-2000
Member of National Research Support Fund Board 1995-1998
Member of the Higher Education Authority (HEA) 1998-2001
Member of the Science Foundation Ireland Technical Advisory Panel on Information and Communications Technology 2000-2001
Details Date From Date To
Member of the American Optical Society
Member of the American Physical Society
Member of the Institute of Electronic and Electrical Engineers
Member of the Royal Irish Academy
Stevenson NJ, Murphy AG, Bourke NB, Keogh CA, Hegarty JE, O'Farrelly C, Ribavirin Enhances IFN-α Signalling and MxA Expression: A Novel Immune Modulation Mechanism during Treatment of HCV, PLoS One, 6, (11), 2011, pe27866 , Journal Article, PUBLISHED  TARA - Full Text
Walker AC, Fancey SJ, Desmulliez MPY, Forbes MG, Casswell JJ, Buller GS, Taghizadeh MR, Dines JAB, Stanley CR, Pennelli G, Boyd AR, Pearson JL, Horan P, Byrne D, Hegarty J, Eitel S, Gauggel HP, Gulden KH, Gauthier A, Benabes P, Gutzwiller JL, Goetz M, Oksman J , Operation of an optoelectronic crossbar switch containing a terabit-per-second free-space optical interconnect , IEEE JOURNAL OF QUANTUM ELECTRONICS , 41, (7), 2005, p1024 - 1036, Journal Article, PUBLISHED  TARA - Full Text
Shaw, A., Folliot, H., Bradley, A. L., Hegarty, J., Donegan, J. F., Impact of carrier diffusion in quantum wells and quantum dots on the behaviour of etched microcavity structures, Institute of Physics Conference Series , Proceedings of the 26th International Conference on the Physics of Semiconductors, Institute of Physics, 2002, edited by Long, A.R., Davies, J.H. , 171, (Paper D172), 2002, Conference Paper, PUBLISHED
Dunbar LA, Stanley RP, Lynch M, Hegarty J, Oesterle U, Houdre R, Ilegems M, Excitation-induced coherence in a semiconductor microcavity, Physical Review B, 66, (19), 2002, p195307-1 - 195307-5, Journal Article, PUBLISHED  TARA - Full Text
H. Folliot, M. Lynch, A.L. Bradley, T. Krug, L.A. Dunbar, J. Hegarty, J.F. Donegan, L.P. Barry, J.S. Roberts and G. Hill, Two-photon induced photoconductivity enhancement in semicondcutor microcavities: a theoretical invetsigation, Journal of the Optical Society of America B, 19, (10), 2002, p2396 - 2402, Journal Article, PUBLISHED  DOI  URL
L.A. Dunbar, M. Lynch, A.L. Bradley, J.F. Donegan, J. Hegarty, R.P. Stanley , U. Oesterle , R. HoudrĂ© , M. Ilegems , Collisional Broadening of Semiconductor Microcavity Polaritons, Physica Status Solidi (a) - Applied Research, 190, 2002, p435 - 440, Journal Article, PUBLISHED  DOI  URL
H. Folliot, M. Lynch, A.L. Bradley, L.A. Dunbar, J. Hegarty, J.F. Donegan, L.P. Barry, J.S. Roberts and G.Hill, Two-photon absorption enhancement in bulk AlGaAs semiconductor microcavities, Virtual Journal of nanoscale Science and Technology, 5, 2002, p9-, Journal Article, PUBLISHED
K. Boy Ian, V. Weldon, D. McDonald, J .O'Gorman and J. Hegarty, Sampled grating DBR laser as a spectroscopic source in multigas detection at 1.52-1.57um, IEE Proceedings of Optoelectronics, 148, (1), 2001, p19 - 24, Journal Article, PUBLISHED  TARA - Full Text  DOI
McAleavey F.J.; O'Gorman J.; Donegan J.F.; Hegarty J.; MazĂ© G.; Poignant H., Operation of Tm3+ fiber laser at lambda = 2.3 mum coupled to a silica fiber Bragg grating, Optical and Quantum Electronics, 33, (2), 2001, p151 - 164, Journal Article, PUBLISHED  DOI
Mcaleavey F. J., O'gorman J., Donegan J. F., Hegarty J., Maze G, Extremely high sensitivity gas detection at 2.3 [mu]m using a grazing incidence Tm3+ fibre laser cavity, Sensors and actuators A: physical , 87, (3), 2001, p107 - 112, Journal Article, PUBLISHED  DOI
  

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Award Date
Fellow of Trinity College Dublin
Fellow of the Institute of Physics