Kevin Gallacher
Kevin Gallacher
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Midinfrared plasmon-enhanced spectroscopy with germanium antennas on silicon substrates
L Baldassarre, E Sakat, J Frigerio, A Samarelli, K Gallacher, E Calandrini, ...
Nano letters 15 (11), 7225-7231, 2015
Ohmic contacts to n-type germanium with low specific contact resistivity
K Gallacher, P Velha, DJ Paul, I MacLaren, M Myronov, DR Leadley
Applied Physics Letters 100 (2), 022113, 2012
Tunability of the dielectric function of heavily doped germanium thin films for mid-infrared plasmonics
J Frigerio, A Ballabio, G Isella, E Sakat, G Pellegrini, P Biagioni, M Bollani, ...
Physical Review B 94 (8), 085202, 2016
Ge-on-Si single-photon avalanche diode detectors: design, modeling, fabrication, and characterization at wavelengths 1310 and 1550 nm
RE Warburton, G Intermite, M Myronov, P Allred, DR Leadley, K Gallacher, ...
IEEE Transactions on Electron Devices 60 (11), 3807-3813, 2013
Low loss Ge-on-Si waveguides operating in the 8–14 Ám atmospheric transmission window
K Gallacher, RW Millar, U Griškevičiūte, L Baldassarre, M Sorel, ...
Optics express 26 (20), 25667-25675, 2018
Analysis of Ge micro-cavities with in-plane tensile strains above 2%
RW Millar, K Gallacher, J Frigerio, A Ballabio, A Bashir, I MacLaren, ...
Optics Express 24 (5), 4365-4374, 2016
Mid-infrared light emission> 3 Ám wavelength from tensile strained GeSn microdisks
RW Millar, DCS Dumas, KF Gallacher, P Jahandar, C MacGregor, ...
Optics express 25 (21), 25374-25385, 2017
Group-IV midinfrared plasmonics
P Biagioni, J Frigerio, A Samarelli, K Gallacher, L Baldassarre, E Sakat, ...
Journal of Nanophotonics 9 (1), 093789-093789, 2015
Plasmonic mid-infrared third harmonic generation in germanium nanoantennas
MP Fischer, A Riede, K Gallacher, J Frigerio, G Pellegrini, M Ortolani, ...
Light: Science & Applications 7 (1), 106, 2018
Extending the emission wavelength of Ge nanopillars to 2.25 μm using silicon nitride stressors
RW Millar, K Gallacher, A Samarelli, J Frigerio, D Chrastina, G Isella, ...
Optics express 23 (14), 18193-18202, 2015
Ge/SiGe quantum confined Stark effect electro-absorption modulation with low voltage swing at λ= 1550 nm
DCS Dumas, K Gallacher, S Rhead, M Myronov, DR Leadley, DJ Paul
Optics express 22 (16), 19284-19292, 2014
Benchmarking the use of heavily doped Ge for plasmonics and sensing in the mid-infrared
G Pellegrini, L Baldassare, V Giliberti, J Frigerio, K Gallacher, DJ Paul, ...
Acs Photonics 5 (9), 3601-3607, 2018
Optical properties of highly n-doped germanium obtained by in situ doping and laser annealing
J Frigerio, A Ballabio, K Gallacher, V Giliberti, L Baldassarre, R Millar, ...
Journal of Physics D: Applied Physics 50 (46), 465103, 2017
1.55 μm direct bandgap electroluminescence from strained n-Ge quantum wells grown on Si substrates
K Gallacher, P Velha, DJ Paul, S Cecchi, J Frigerio, D Chrastina, G Isella
Applied Physics Letters 101 (21), 211101, 2012
Mid-infrared intersubband absorption from p-Ge quantum wells grown on Si substrates
K Gallacher, A Ballabio, RW Millar, J Frigerio, A Bashir, I MacLaren, ...
Applied Physics Letters 108 (9), 091114, 2016
Disentangling nonradiative recombination processes in Ge micro-crystals on Si substrates
F Pezzoli, A Giorgioni, K Gallacher, F Isa, P Biagioni, RW Millar, E Gatti, ...
Applied Physics Letters 108 (26), 262103, 2016
Ultra-broadband mid-infrared Ge-on-Si waveguide polarization rotator
K Gallacher, RW Millar, U Griškevičiūtė, M Sinclair, M Sorel, ...
APL Photonics 5 (2), 026102, 2020
1.4 million Q factor Si3N4 micro-ring resonator at 780 nm wavelength for chip-scale atomic systems
M Sinclair, K Gallacher, M Sorel, JC Bayley, E McBrearty, RW Millar, ...
Optics express 28 (3), 4010-4020, 2020
Interfacial sharpness and intermixing in a Ge-SiGe multiple quantum well structure
A Bashir, K Gallacher, RW Millar, DJ Paul, A Ballabio, J Frigerio, G Isella, ...
Journal of applied physics 123 (3), 035703, 2018
Design and simulation of losses in Ge/SiGe terahertz quantum cascade laser waveguides
K Gallacher, M Ortolani, K Rew, C Ciano, L Baldassarre, M Virgilio, ...
Optics Express 28 (4), 4786-4800, 2020
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