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Johannes Schmidt

CNR Researcher

tel. +39 050 509470

johannes.schmidtnano.cnr .it

Research interests

My main interest is focused on THz-spectroscopy and semiconductor nanostructures. In particular, I have investigated single and multi quantum-well structures. At the moment I concentrate my work on the field of THz quantum cascade lasers, THz photonics and Metamaterials.

Other topics I am interested in are ultrafast dynamics, light matter interaction in the strong coupling regime, magnetic semiconductors, plasmonics, signal theory, in particular signal processing.

Biographical sketch

3. Present Position
CNR 3rd level Researcher in the THz-group of Miriam Vitiello

4. Past Experiences
2013 – 06/2017: I was a research associate at Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and investigated semiconductor nanostructures with the free electron laser at the FELBE-facility.

5. Education
2013 - Diploma-degree in physics
Diploma thesis: ‘Time-resolved optical-pump THz-probe spectroscopy of semiconductor heterostructures’

Selected publications

J.Schmidt, S. Winnerl, W. Seidel, C. Bauer, M. Gensch, H. Schneider and M. Helm,
"Single-pulse picking at kHz repetition rates using a Ge plasma switch at the free-electron laser FELBE”, Rev. Sci. Instr., 86(6), 063103.3 (2015)

C. Li, N. Krau_, G. Schaefer, L. Ebner, O. Kliebisch, J. Schmidt, S. Winnerl, M. Hettich and T.
Dekorsy, “High-speed asynchronous optical sampling based on GHz Yb:KYW oscillators “, Opt. Express, 25, 9204-9212 (2017)

D. Sabbagh, J. Schmidt, S. Winnerl, M. Helm, L. D. Gaspare, M. De Seta, M. Virgilio and M.
Ortolani, "Electron Dynamics in Silicon-Germanium Terahertz Quantum Fountain Structures”,
ACS Photonics 3(3), 403-414 (2015)


A. Hassdenteufel, J. Schmidt, C. Schubert, B. Hebler, M. Helm, M. Albrecht and R. Bratschitsch,
"Low remanence criterion for helicity-dependent all-optical magnetic switching in ferrimagnets and
Heterostructures“, Phys. Rev. B 91, 104431 (2015)



C. Schubert, A. Hassdenteufel, P. Matthes, J. Schmidt, M. Helm, R. Bratschitsch and M. Albrecht,
"All-optical helicity dependent magnetic switching in an arti_cial zero moment magnet”,
Appl. Phys. Lett. 104, 082406 (2015)


C. Sorger, S. Preu, J. Schmidt, S. Winnerl, Y. V. Bludov, N. M. R. Peres, M. I. Vasilevsky and Heiko B Weber, „Terahertz response of patterned epitaxial graphene”, New J. phys., 17, 053045 (2015)


A. Hassdenteufel, C. Schubert, J.Schmidt, P. Richter, D. R. T. Zahn, G. Slavan, M. Helm, R.
Bratschitsch and M. Albrecht,"Dependence of all-optical magnetic switching on the sublattice
magnetization orientation in Tb-Fe thin films”, Appl. Phys. Lett. 105, 112403 (2014)


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