Mathias Schubert

Mathias Schubert.

JA Woollam Professor of Engineering
Electrical and Computer Engineering

E430C Nebraska Hall
Lincoln, NE 68588
(402) 472-3771
  • Privatdozent (Physics), Universität Leipzig, 2003
  • Dr. habil. (Physics), Universität Leipzig, 2003
  • Dr. rer. nat. (Physics), Universität Leipzig, 1997
  • Diplom-Physiker, Universität Leipzig, 1994
  • Study of Physics, Universität Leipzig, 1989-1994

Research Interests
  • Optical Hall-effect in semiconductor
  • Interface polarization coupling
  • Form-induced optical anisotropy in nanostructure materials
  • Ellipsometric instrumentation development
  • New chemical, biochemical and biological sensing and separation principles
Selected Publications
  • Infrared dielectric functions and Brillouin zone center phonons of α-Ga2O3 compared to α-Al2O3M. Stokey, R. Korlacki, M. Hilfiker, M. Knight, S. Richter, V. Darakchieva, R. Jinno, Y. Cho, H. G. Xing, D. Jena, Y. Oshima, K. Khan, E. Ahmadi, and M. Schubert Phys. Rev. Materials 6, 014601 (2022)
  • Linear strain and stress potential parameters for the three fundamental band to band transitions in β-Ga2O3 R. Korlacki, J. Knudtson, M. Stokey, M. J. Hilfiker, V. Darakchieva, and M. Schubert Appl. Phys. Lett. 120, 042103 (2022)
  • Resolving mobility anisotropy in quasi-free-standing epitaxial graphene by terahertz optical Hall effect N. Armakavicius, P. Kühne, J. Eriksson, C. Bouhafs, V. Stanishev, I. Ivanov, R. Yakimova, A. Zakharov, C. Coletti, M. Schubert, and V. Darakchieva Carbon 172, 248-259 (2021)
  • Broadband enhanced chirality with tunable response in hybrid plasmonic helical metamaterials U. Kilic, M. Hilfiker, A. Ruder, R. Feder, E. Schubert, M. Schubert, and C. Argyropoulos Advanced Functional Materials, 2010329 (2021)
  • Stretchable Thin Film Mechanical Strain Gated Switches and Logic Gate Functions Based on a Soft Tunneling Barrier S. Chae, W. J. Choi, I. Fotev, E. Bittrich, P. Uhlmann, M. Schubert, D. Makarov, J. Wagner, A. Pashkin, and A. Fery Advanced Materials Wiley , 2104769 (2021)
  • Anisotropic dielectric functions, band-to-band transitions, and critical points in α-Ga2O3 M. Hilfiker, R. Korlacki, R. Jinno, Y. Cho, H. G. Xing, D. Jena, U. Kilic, M. Stokey, and M. Schubert Appl. Phys. Lett. 118, 062103 (2021)
  • Dielectric function and ultra wide band gap energy of ZnGa2O4 M. Hilfiker, M. Stokey, R. Korlacki , U. Kilic, Z. Galazka, K. Irmscher, S. Zollner, and M. Schubert Appl. Phys. Lett. 118, 132102 (2021)
  • Infrared-active phonon modes and static dielectric constant in In2O3 M. Stokey, R. Korlacki, S. Knight, A. Ruder, M. Hilfiker, Z. Galazka, K. Irmscher, Y. Zhang, H. Zhao, V. Darakchieva, and M. Schubert J. Appl. Phys. 129, 225102 (2021)
  • Mueller matrix imaging microscope using dual continuously rotating anisotropic mirrors A. Ruder, B. Wright, R. Feder, U. Kilic, M. Hilfiker, E. Schubert, C. M. Herzinger, and M. Schubert Opt. Express 29, 28704-28724 (2021)
  • High-frequency and below band gap anisotropic dielectric constants in α-(AlxGa1-x)2O3 (0\le x \le 1) M. Hilfiker, U. Kilic, M. Stokey, R. Jinno, Y. Cho, H. Grace Xing, D. Jena, R. Korlacki, and M. Schubert Appl. Phys. Lett. 119, 092103 (2021)
  • Numerical ellipsometry: A method for selecting a near-minimal infrared measurement set for beta-gallium oxide F. K. Urban, D. Barton, and M. Schubert J. Vac. Sci. Technol. A 39, 052801 (2021)
  • Impacts of Particle Surface Heterogeneity on the Deposition of Colloids on Flat Surfaces T. Delon, T. Parsai, U. Kilic, M. Schubert, S. A. Morin , and Y. Li Environ. Sci.: Nano 8, 3365-3375 (2021)
  • Strain and stress relationships for optical phonon modes in monoclinic crystals with β-Ga2O3 as an example R. Korlacki, M. Stokey, A. Mock, S. Knight, A. Papamichail, V. Darakchieva, and M. Schubert Phys. Rev. B 102, 180101(R) (2020)
  • Cavity-tuning optomechanical stage for low-field terahertz optical Hall effect S. Knight, S. Schöche, P. Kühne, T. Hofmann, V. Darakchieva, and M. Schubert Rev. Sci. Instr. 91, 083903 (2020)
  • Brillouin zone center phonon modes in ZnGa2O4 M. Stokey, S. Knight, R. Korlacki, Z. Galazka, K. Irmscher, V. Darakchieva, and M. Schubert Appl. Phys. Lett. 117, 052104 (2020)