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Frank Hegmann
Frank Hegmann
Professor, Department of Physics, University of Alberta, Canada
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An ultrafast terahertz scanning tunnelling microscope
TL Cocker, V Jelic, M Gupta, SJ Molesky, JAJ Burgess, GDL Reyes, ...
Nature Photonics 7 (8), 620-625, 2013
5052013
Terahertz conductivity of thin gold films at the metal-insulator percolation transition
M Walther, DG Cooke, C Sherstan, M Hajar, MR Freeman, FA Hegmann
Physical Review B 76 (12), 125408, 2007
4862007
Generation of 1.5 ¥ìJ single-cycle terahertz pulses by optical rectification from a large aperture ZnTe crystal
F Blanchard, L Razzari, HC Bandulet, G Sharma, R Morandotti, JC Kieffer, ...
Optics Express 15 (20), 13212-13220, 2007
4452007
Polyynes as a model for carbyne: synthesis, physical properties, and nonlinear optical response
S Eisler, AD Slepkov, E Elliott, T Luu, R McDonald, FA Hegmann, ...
Journal of the American Chemical Society 127 (8), 2666-2676, 2005
4422005
Size vs Surface: Tuning the Photoluminescence of Freestanding Silicon Nanocrystals Across the Visible Spectrum via Surface Groups
M Dasog, GB De los Reyes, LV Titova, FA Hegmann, JGC Veinot
ACS nano 8 (9), 9636-9648, 2014
3372014
Transient terahertz conductivity in photoexcited silicon nanocrystal films
DG Cooke, AN MacDonald, A Hryciw, J Wang, Q Li, A Meldrum, ...
Physical Review B 73 (19), 193311, 2006
2142006
Bandlike transport in pentacene and functionalized pentacene thin films revealed by subpicosecond transient photoconductivity measurements
O Ostroverkhova, DG Cooke, S Shcherbyna, RF Egerton, FA Hegmann, ...
Physical Review B 71 (3), 035204, 2005
2132005
Phase diagram of the ultrafast photoinduced insulator-metal transition in vanadium dioxide
TL Cocker, LV Titova, S Fourmaux, G Holloway, HC Bandulet, D Brassard, ...
Physical Review B 85 (15), 155120, 2012
2082012
Microscopic origin of the Drude-Smith model
TL Cocker, D Baillie, M Buruma, LV Titova, RD Sydora, F Marsiglio, ...
Physical Review B 96 (20), 205439, 2017
1892017
Ultrafast carrier relaxation in radiation-damaged silicon on sapphire studied by optical-pump–terahertz-probe experiments
KPH Lui, FA Hegmann
Applied Physics Letters 78 (22), 3478-3480, 2001
1892001
Ultrafast terahertz control of extreme tunnel currents through single atoms on a silicon surface
V Jelic, K Iwaszczuk, PH Nguyen, C Rathje, GJ Hornig, HM Sharum, ...
Nature Physics 13 (6), 591-598, 2017
1872017
The surprising nonlinear optical properties of conjugated polyyne oligomers
AD Slepkov, FA Hegmann, S Eisler, E Elliott, RR Tykwinski
The Journal of chemical physics 120 (15), 6807-6810, 2004
1782004
Optical and transient photoconductive properties of pentacene and functionalized pentacene thin films: Dependence on film morphology
O Ostroverkhova, S Shcherbyna, DG Cooke, RF Egerton, FA Hegmann, ...
Journal of Applied Physics 98 (3), 2005
1662005
Intense THz pulses cause H2AX phosphorylation and activate DNA damage response in human skin tissue
LV Titova, AK Ayesheshim, A Golubov, D Fogen, R Rodriguez-Juarez, ...
Biomedical optics express 4 (4), 559-568, 2013
1622013
Picosecond transient photoconductivity in functionalized pentacene molecular crystals probed by terahertz pulse spectroscopy
FA Hegmann, RR Tykwinski, KPH Lui, JE Bullock, JE Anthony
Physical review letters 89 (22), 227403, 2002
1622002
Electron mobility in dilute GaAs bismide and nitride alloys measured by time-resolved terahertz spectroscopy
DG Cooke, FA Hegmann, EC Young, T Tiedje
Applied physics letters 89 (12), 2006
1602006
Ultrafast carrier dynamics in pentacene, functionalized pentacene, tetracene, and rubrene single crystals
O Ostroverkhova, DG Cooke, FA Hegmann, JE Anthony, V Podzorov, ...
Applied physics letters 88 (16), 2006
1592006
Nonlinear ultrafast modulation of the optical absorption of intense few-cycle terahertz pulses in n-doped semiconductors
L Razzari, FH Su, G Sharma, F Blanchard, A Ayesheshim, HC Bandulet, ...
Physical Review B 79 (19), 193204, 2009
1582009
Intrinsic picosecond response times of Y–Ba–Cu–O superconducting photodetectors
M Lindgren, M Currie, C Williams, TY Hsiang, PM Fauchet, R Sobolewski, ...
Applied Physics Letters 74 (6), 853-855, 1999
1491999
Intense THz pulses down-regulate genes associated with skin cancer and psoriasis: a new therapeutic avenue?
LV Titova, AK Ayesheshim, A Golubov, R Rodriguez-Juarez, R Woycicki, ...
Scientific reports 3 (1), 2363, 2013
1422013
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