Frank A. Hegmann

Overview

Best Publications

• An ultrafast terahertz scanning tunnelling microscope

  Tyler L. Cocker;Vedran Jelic;Manisha Gupta;Sean J. Molesky

  557
  Citations

• Terahertz conductivity of thin gold films at the metal-insulator percolation transition

  M. Walther;David Cooke;C. Sherstan;M. Hajar

  545
  Citations

• Polyynes as a model for carbyne: synthesis, physical properties, and nonlinear optical response.

  Sara Eisler;Aaron D. Slepkov;Erin Elliott;Thanh Luu

  462
  Citations

• Generation of 1.5 microJ single-cycle terahertz pulses by optical rectification from a large aperture ZnTe crystal.

  F. Blanchard;L. Razzari;H. C. Bandulet;G. Sharma

  453
  Citations

• Size vs surface: tuning the photoluminescence of freestanding silicon nanocrystals across the visible spectrum via surface groups.

  Mita Dasog;Glenda B. De los Reyes;Lyubov V. Titova;Frank A. Hegmann

  355
  Citations

• Microscopic origin of the Drude-Smith model

  T. L. Cocker;T. L. Cocker;D. Baillie;M. Buruma;L. V. Titova

  231
  Citations

• Phase diagram of the ultrafast photoinduced insulator-metal transition in vanadium dioxide

  T. L. Cocker;L. V. Titova;S. Fourmaux;G. Holloway

  222
  Citations

• Nanoscale terahertz scanning probe microscopy

  T. L. Cocker;V. Jelic;R. Hillenbrand;R. Hillenbrand;F. A. Hegmann

  214
  Citations

• Transient terahertz conductivity in photoexcited silicon nanocrystal films

  David Cooke;A. N. MacDonald;A. Hryciw;J. Wang

  213
  Citations

• Bandlike transport in pentacene and functionalized pentacene thin films revealed by subpicosecond transient photoconductivity measurements

  O. Ostroverkhova;David Cooke;S. Shcherbyna;R. F. Egerton

  210
  Citations

• Ultrafast terahertz control of extreme tunnel currents through single atoms on a silicon surface

  Vedran Jelic;Krzysztof Iwaszczuk;Peter H. Nguyen;Christopher Rathje

  202
  Citations

• Ultrafast carrier relaxation in radiation-damaged silicon on sapphire studied by optical-pump–terahertz-probe experiments

  K. P. H. Lui;F. A. Hegmann

  197
  Citations

• The surprising nonlinear optical properties of conjugated polyyne oligomers

  Aaron D. Slepkov;Frank A. Hegmann;Sara Eisler;Erin Elliott

  185
  Citations

• Intense THz pulses cause H2AX phosphorylation and activate DNA damage response in human skin tissue

  Lyubov V. Titova;Ayesheshim K. Ayesheshim;Andrey Golubov;Dawson Fogen

  169
  Citations

• Optical and transient photoconductive properties of pentacene and functionalized pentacene thin films: Dependence on film morphology

  Oksana Ostroverkhova;Svitlana Shcherbyna;David G. Cooke;Ray F. Egerton

  166
  Citations

• Nonlinear ultrafast modulation of the optical absorption of intense few-cycle terahertz pulses in n -doped semiconductors

  L. Razzari;L. Razzari;F. H. Su;G. Sharma;F. Blanchard

  162
  Citations

• Electron mobility in dilute GaAs bismide and nitride alloys measured by time-resolved terahertz spectroscopy

  David Cooke;F. A. Hegmann;E. C. Young;T. Tiedje

  160
  Citations

• Ultrafast carrier dynamics in pentacene, functionalized pentacene, tetracene, and rubrene single crystals

  O. Ostroverkhova;David Cooke;F. A. Hegmann;J. E. Anthony

  156
  Citations

• Picosecond transient photoconductivity in functionalized pentacene molecular crystals probed by terahertz pulse spectroscopy.

  F. A. Hegmann;R. R. Tykwinski;K. P. H. Lui;J. E. Bullock

  154
  Citations

• Intense THz pulses down-regulate genes associated with skin cancer and psoriasis: a new therapeutic avenue?

  Lyubov V. Titova;Ayesheshim K. Ayesheshim;Andrey Golubov;Rocio Rodriguez-Juarez

  154
  Citations

• Intrinsic picosecond response times of Y–Ba–Cu–O superconducting photodetectors

  M. Lindgren;M. Currie;C. Williams;T. Y. Hsiang

  147
  Citations