Prof. Frank A. Hegmann Profile

Prof. Frank A. Hegmann

Professor at Univ of Alberta

SPIE Involvement:

Author

Publications (15)

Proceedings Article | 30 March 2020 Presentation

Presentation

THz spectroscopy of MXenes: promise for applications ranging from electromagnetic interference shielding to conductive electrodes (Conference Presentation)

Lyubov Titova, Guangjiang Li, Teng Shi, Varun Natu, Naaman Amer, Shuohan Huang, Hassan Hafez, Frank Hegmann, Dmitry Turchinovich, Vadym Mochalin, Michel Barsoum

Proceedings Volume 11348, 113480Y (2020) https://doi.org/10.1117/12.2559696

KEYWORDS: Terahertz radiation, Electromagnetic interference, Spectroscopy, Electrodes, Transition metals, Chemistry, Transparency, Signal detection, Sensors, Annealing

Read Abstract +

Proceedings Article | 13 March 2014 Paper

Paper

Effect of intense THz pulses on expression of genes associated with skin cancer and inflammatory skin conditions

Lyubov Titova, Ayesheshim Ayesheshim, David Purschke, Andrey Golubov, Rocio Rodriguez-Juarez, Rafal Woycicki, Frank Hegmann, Olga Kovalchuk

Proceedings Volume 8941, 89411G (2014) https://doi.org/10.1117/12.2044167

KEYWORDS: Terahertz radiation, Skin, Tissues, Proteins, Skin cancer, 3D modeling, Picosecond phenomena, In vivo imaging, Radiation effects, Double sideband modulation

Read Abstract +

Proceedings Article | 7 March 2014 Paper

Paper

Ultrafast THz-pulse-induced tunneling dynamics in an STM

Vedran Jelic, Tyler Cocker, James Hoffman, Manisha Gupta, Reginald Miller, Sean Molesky, Jacob A. Burgess, Glenda De Los Reyes, Lyubov Titova, Ying Tsui, Mark Freeman, Frank Hegmann

Proceedings Volume 8984, 898412 (2014) https://doi.org/10.1117/12.2040413

KEYWORDS: Terahertz radiation, Scanning tunneling microscopy, Picosecond phenomena, Ultrafast phenomena, Gold, Metals, Ultrafast imaging, Data modeling, Temporal resolution, Ultrafast measurement systems

Read Abstract +

Proceedings Article | 7 March 2014 Paper

Paper

Imaging ultrafast dynamics on the nanoscale with a THz-STM

Tyler Cocker, Vedran Jelic, James Hoffman, Manisha Gupta, Reginald Miller, Sean Molesky, Jacob A. Burgess, Glenda De Los Reyes, Lyubov Titova, Ying Tsui, Mark Freeman, Frank Hegmann

Proceedings Volume 8984, 898411 (2014) https://doi.org/10.1117/12.2037447

KEYWORDS: Scanning tunneling microscopy, Terahertz radiation, Indium arsenide, Ultrafast phenomena, Picosecond phenomena, Ultrafast imaging, Spatial resolution, Gold, Modulation, Ultrafast measurement systems

Read Abstract +

Proceedings Article | 23 February 2013 Paper

Paper

Intense picosecond THz pulses alter gene expression in human skin tissue in vivo

Lyubov Titova, Ayesheshim Ayesheshim, Andrey Golubov, Rocio Rodriguez-Juarez, Anna Kovalchuk, Frank Hegmann, Olga Kovalchuk

Proceedings Volume 8585, 85850Q (2013) https://doi.org/10.1117/12.2004998

KEYWORDS: Terahertz radiation, Tissues, Skin, Cancer, Tumors, Radiation effects, In vivo imaging, Proteins, Double sideband modulation, Picosecond phenomena

Read Abstract +

Proceedings Article | 28 August 2010 Paper

Paper

Terahertz nonlinear spectroscopy of free-carriers in direct bandgap semiconductors

L. Razzari, F. Blanchard, F. Su, G. Sharma, A. Ayesheshim, T. Cocker, L. Titova, H.-C. Bandulet, R. Morandotti, J.-C. Kieffer, T. Ozaki, M. Reid, F. Hegmann

Proceedings Volume 7763, 77630B (2010) https://doi.org/10.1117/12.858332

KEYWORDS: Terahertz radiation, Scattering, Semiconductors, Terahertz spectroscopy, Gallium arsenide, Crystals, Polarization, Electrons, Absorption, Spectroscopy

Read Abstract +

Proceedings Article | 1 October 2005 Paper

Paper

Ultrafast time-resolved and spectrally-resolved measurements of third-order optical nonlinearities in As₂Se₃ chalcogenide glass

Andrzej Tomalik, Ray DeCorby, Aaron Slepkov, Frank Hegmann, Arkady Major, P. Smith, J. Stewart Aitchison

Proceedings Volume 5971, 59710D (2005) https://doi.org/10.1117/12.626716

KEYWORDS: Selenium, Absorption, Glasses, Chalcogenide glass, Dispersion, Ultrafast phenomena, Nonlinear optics, Polarization, Signal detection, Kerr effect

Read Abstract +

Proceedings Article | 30 August 2005 Paper

Paper

The effects of donor-acceptor substitution symmetry on the nonlinear absorption of two-dimensionally-conjugated isomeric chromophores

Aaron Slepkov, Jeremiah Marsden, Jeremie Miller, Laura Shirtcliff, Michael Haley, Kenji Kamada, Rik Tykwinski, Frank Hegmann

Proceedings Volume 5934, 593405 (2005) https://doi.org/10.1117/12.617976

KEYWORDS: Absorption, Nonlinear optics, Molecules, Laser beam diagnostics, Chromophores, Signal processing, Picosecond phenomena, Kerr effect, Signal detection, Ultrafast phenomena

Read Abstract +

Proceedings Article | 18 August 2005 Paper

Paper

The one-dimensional nature of polyynes

Aaron Slepkov, Sara Eisler, Thanh Luu, Erin Elliot, Rik Tykwinski, Frank Hegmann

Proceedings Volume 5935, 593515 (2005) https://doi.org/10.1117/12.617926

KEYWORDS: Absorption, Carbon, Nonlinear optics, Electrons, Kerr effect, Complex systems, Personal protective equipment, Ultrafast phenomena, Molecules, Semiconductors

Read Abstract +

Proceedings Article | 15 October 2004 Paper

Paper

Fast photoresponse in organic semiconductors: understanding the mechanisms and structure-property relationships

Oksana Ostroverkhova, Svitlana Shcherbyna, David Cooke, Ray Egerton, Rik Tykwinski, John Anthony, Frank Hegmann

Proceedings Volume 5517, (2004) https://doi.org/10.1117/12.562334

KEYWORDS: Crystals, Thin films, Picosecond phenomena, Terahertz radiation, Absorption, Charged particle optics, Mica, Ocean optics, Temperature metrology, Solids

Read Abstract +

Proceedings Article | 16 June 2004 Paper

Paper

Picosecond transient photoconductivity in organic molecular crystals

Frank Hegmann, Oksana Ostroverkhova, Jianbo Gao, Lloyd Barker, Rik Tykwinski, John Bullock, John Anthony

Proceedings Volume 5352, (2004) https://doi.org/10.1117/12.526915

KEYWORDS: Crystals, Picosecond phenomena, Terahertz radiation, Absorption, Excitons, Organic materials, Temperature metrology, Polymers, Ultrafast phenomena, Oscilloscopes

Read Abstract +

Proceedings Article | 11 June 2002 Paper

Paper

Optical pump-terahertz probe investigation of carrier relaxation in radiation-damaged silicon-on-sapphire

Frank Hegmann, Kristine Lui

Proceedings Volume 4643, (2002) https://doi.org/10.1117/12.470433

KEYWORDS: Picosecond phenomena, Terahertz radiation, Silicon, Thin films, Amorphous silicon, Semiconductors, Phase shifts, Silicon films, Crystals, Data modeling

Read Abstract +

Proceedings Article | 29 April 1999 Paper

Paper

Characterization of photoconducting materials using variable-length picosecond terahertz pulses

Bryan Cole, Frank Hegmann, Jon Williams, Mark Sherwin, Jeffrey Beeman, Eugene Haller

Proceedings Volume 3617, (1999) https://doi.org/10.1117/12.347121

KEYWORDS: Terahertz radiation, Free electron lasers, Switches, Picosecond phenomena, Pulsed laser operation, Semiconductor lasers, Sensors, Switching, Semiconductors, Semiconducting wafers

Read Abstract +

Proceedings Article | 18 December 1996 Paper

Paper

Generation of picosecond far-infrared pulses using laser-activated semiconductor reflection switches

Frank Hegmann, Mark Sherwin

Proceedings Volume 2842, (1996) https://doi.org/10.1117/12.262736

KEYWORDS: Switches, Switching, Silicon, Reflection, Picosecond phenomena, Free electron lasers, Semiconducting wafers, Mirrors, Semiconductor lasers, Reflectivity

Read Abstract +

Proceedings Article | 20 May 1994 Paper

Paper

High-speed kinetic inductive bolometric photoresponse of epitaxial YBa2Cu3O7-delta thin films

Frank Hegmann, Robert Hughes, John Preston

Proceedings Volume 2159, (1994) https://doi.org/10.1117/12.176134

KEYWORDS: Picosecond phenomena, Bridges, Pulsed laser operation, Thin films, Temperature metrology, Liquids, Nitrogen, Resistance, Inductance, Quasiparticles

Read Abstract +

Showing 5 of 15 publications

Conference Committee Involvement (1)

Ultrafast Phenomena in Semiconductors and Nanostructure Materials IX

24 January 2005 | San Jose, California, United States

SIGN IN TO:

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Advertisement

Advertisement