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Co-head of department
PD Dr. Anton Plech

anton plechYzk8∂kit edu

About Femtosec

As part of the department of nano- and microcharacterization at IPS, the Femtosec group performs research with time-resolved x-ray scattering and spectroscopy, in particular for the analysis of nanoscale dynamics, phonon excitation or phase transitions in the condensed phase. A special emphasis is on the exploitation of the „low alpha mode“ at ANKA, which is capable to deliver pulses as short as 1 picosecond. In the x-ray regime this can be used for pump-probe experiments with femtosecond laser excitation, while in the THz region the coherent emission of the radiation can be sampled by means of electro-optical techniques.

The Femtolab clusters expertise on ultrafast optical methods and pulse lasers, which serve the Femtosec group, but also diagnostics of the electron pulses in the ring and the development of new accelerator concepts and techniques.
The research is funded by ANKA/ISS and by individual grants of the German Science foundation (DFG). AP is funded by the Heisenberg fellowship in 2009-2011. Collaborations are related to the Center for Applied Photonics (CAP) Konstanz. We acknowledge the support and provision of beam time by ANKA, SLS and ESRF.

The research of the group can be roughly sorted along the following subjects:

  • Laser control of materials via lattice excitation
  • Structural dynamics of nanoparticles
  • Nanoparticle synthesis
  • New Sources and methods with ultrahigh time resolution

Research statement

Nanoscience explores the spatial region in between bulk material and its atomic or molecular constituents. The change of physical properties can be abrupt and display a number of novel properties.  The exploitation of experimental methods, which can both resolve the structure and the temporal dynamics of the nanostructures are inherent to the understanding of this class of systems. We use synchrotron radiation scattering methods for static and dynamic studies and laser based ultrafast methods for the dynamic characterization of nanoscale matter, molecules and crystalline materials.

Central questions are:

  • Can light pulses manipulate the phase of functional materials; can one use such effects to switch ferroelectrics, for instance? What are the mechanisms down to an atomic level ?
  • Can one watch molecules during the course of a chemical reaction ?
  • How do metallic nanoparticles, or nanoparticles with bound proteins, react upon irradiation with intense light pulses ? Can one use these reactions to achieve material processing on a nanoscale, can one achieve targeted effects in biologic materials ?


The activities of the Femtolab consist in the provision of laser-based methods to process materials, in particular on the nanoscale. As a major part a femtosecond laser system is operated to be used for pump-probe experiments with radiation from ANKA as probe radiation.

The laser itself (500 MHz oscillator by Gigaoptics, pulse length 30 fs) is located on a mobile optical table, which also carries essential control electronics and can optionally be used under inert atmosphere (helium, nitrogen). Recently a nanosecond laser has been provided for high-power laser ablation on solid targets.

Femtolab laser

View of the ablation chamber with the optical port for the focussing of the laser on the front left side and a continuous rotation of the target disk inside the seald chamber (black stepper motor coupled to the magnetic transducer). Water flow is used to replace the liquid between individual laser shots.









Laser excitation of phonons


Laser excitation of phonons
S. Ibrahimkutty, et al., J. Synchr. Rad. 18 (2011) 539
H. Bracht, et al. New J. Physics 16 (2014) 015021

Dynamics of Nanoparticles


Dynamics of Nanoparticles
V. Kotaidis, et al. Phys. Rev. B Rapids 86 (2012) 100101
Nanoparticle synthesis Nanoparticle synthesis
P. Wagener, et al., Phys. Chem. Chem. Phys., 15 (2013) 3068

S. Ibrahimkutty, et al.,, Appl Phys. Lett, 101 (2012) 103104
Ferroelectric phase transition

Ferroelectric phase transition
D. Issenmann, et al.
, Acta Phys. Pol. 121 (2012) 319


Journal Papers Femtosec
Title Author Source Date Link
N. Hiller, A. Borysenko, E. Hertle, E. Huttel, V. Judin, B. Kehrer, S. Marsching, A.-S. Müller, M. J. Nasse, A. Plech, M. Schuh, N. J. Smale, B. Steffen, P. Peier, V. Schlott Proceedings of IPAC2013, Shanghai, China, MOPME014 2013 PDF
D. Issenmann, N. Wehmeier, S. Eon, H. Bracht, G. Buth, S. Ibrahimkutty, A. Plech Thin Solid Films 541, 28-31 2013 PDF
D. Issenmann, S. Ibrahimkutty, R. Steininger, J. Göttlicher, T. Baumbach, N. Hiller, A-S. Müller, A. Plech Journal of Physics: Conference Series 425, 092007 2013 PDF
M. J. Nasse, M. Schuh, S. Naknaimueang, M. Schwarz, A. Plech, Y.-L. Mathis, R. Rossmanith, P. Wesolowski, E. Huttel, M. Schmelling, A.-S. Müller Review of Scientific Instruments 84, 022705 2013 PDF
A. Plech, S. Ibrahimkutty, D. Issenmann, V. Kotaidis, A. Siems Journal of Physics: Conference Series 425, 092008 2013 PDF
P. Wagener, S. Ibrahimkutty, A. Menzel, A. Plech, S. Barcikowski Physical Chemistry Chemical Physics 15, 3068-3074 2013 PDF
F. Zimmermann, A. Plech, S. Richter, S. Döring, A. Tünnermann, S. Nolte Applied Physics A DOI 10.1007/s00339-013-8093-5 2013 PDF
F. Zimmermann, S. Richter, A. Plech, S. Döring, M. Heinrich, M. Steinert, U. Peschel, E.-B. Kley, A. Tünnermann, S. Nolte Proceedings of SPIE 8611,
2013 PDF
H. Bracht, N. Wehmeier, S. Eon, A. Plech, D. Issenmann, J.L. Hansen, A. N. Larsen, J. W. Ager III, E.E. Haller Applied Physics Letters 101 (2012) 064103-1-4 2012 PDF
S. Ibrahimkutty, P. Wagener, A. Menzel, A. Plech, S. Barcikowski Applied Physics Letters 101 (2012) 103104-1-4 2012 PDF

D. Issenmann, S. Schleef, S. Ibrahimkutty, G. Buth, T. Baumbach, M. Beyer, J. Demsar, A. Plech

Acta Physica Polonica A 121, 319-323 2012 PDF

A. Kolloch, P. Leiderer, D. Issenmann, S. Ibrahimkutty, A. Plech

Journal of Laser Applications 24, 042015 2012 PDF
V. Kotaidis, T. Dekorsy, S. D. Ibrahimkutty, D. Issenmann, D. Khakulin, A. Plech Physical Review B 86 (2012) 100101-1-5 2012 PDF
A.-S. Müller, N. Hiller, A. Hofmann, E. Huttel, K. Ilin, V. Judin, B. Kehrer, M. Klein, S. Marsching, C. Meuter S. Naknaimueang, M.J. Nasse, A. Plech, P. Probst, A. Scheuring, M. Schuh, M. Schwarz, M. Siegel, N. Smale, M. Streichert, F. Caspers, A. Semenov, H.W. Hubers, E. Brundermann Beam Dynamics Newsletter 57 (2012) 154-165 2012 PDF
S. Richter, A. Plech, M. Steinert, M. Heinrich, S. Döring, F. Zimmermann, U. Peschel, E.B. Kley, A. Tünnermann, S. Nolte Laser & Photonics Reviews 6 (2012) 787-792 2012 PDF

N. Hiller, E. Huttel, A.-S. Mueller, A. Plech, F. L. Mueller, P. Peier, V. Schlott

Proceedings IPAC (2011) TUPC086


S. Ibrahimkutty, D. Issenmann, S. Schleef, A.-S. Müller, Y.-L. Mathis, B. Gasharova, E. Huttel, R. Steininger, J. Göttlicher, T. Baumbach, A. Bartels, C. Janke and A. Plech

Journal of Synchrotron Radiation 18, 539-545 2011
S. Ibrahimkutty, J. Kim, M. Cammarata, F. Ewald, J. Choi, H. Ihee, A. Plech ACS Nano 5 (2011) 3788-3794 2011

A. Kolloch, T. Geldhauser, K. Ueno, H. Misawa, J. Boneberg, A. Plech, P. Leiderer

Applied Physics A 104, 793-799

Naknaimueang S., Schwarz M., Albert H., Baumbach T., Hagelstein M., Hiller N., Huttel E., Judin V., Kehrer B., Kubat R., Marsching S., Mexner W., Mueller A.-S., Nasse M. J., Plech A., Rossmanith R., Schuh M., Schmelling M., Abela R., Braun H.-H., Ganter R., Patterson B.

Proceedings IPAC (2011) TUPO007


A Siems, S Weber, J Boneberg and A. Plech

New Journal of Physics 13, 043018 2011

F. Ciesa, A. Plech

Journal of Colloid and Interface Science 346, 1–7 2010

F. Ciesa, A. Plech, C. Mattioli, L. Pescatori, A. Arduini, A. Pochini, F. Rossi and A. Secchi

The Journal of Physical Chemistry C 114, 13601–13607 2010

B. Dobson, A. Plech

(report XDAC meeting EU-XFEL 2010)


N. Hiller, S. Hillenbrand, A. Hofmann, E. Huttel, V. Judin, B. Kehrer, M. Klein, S. Marsching, A.-S. Müller, A. Plech, N. Smale, K. G. Sonnad, P. F. Tavares

Proceedings IPAC (2010) WEPEA020 2010

M. Cammarata, L. Eybert, F. Ewald, W. Reichenbach, M. Wulff, P. Anfinrud, F. Schotte, A. Plech, Q. Kong, M. Lorenc, B. Lindenau, J. Räbiger, S. Polachowski

Review of Scientific Instruments 80, 15101 2009

A Henkel, C. Soennichsen, A. Plech, O. Schubert

The Journal of Physical Chemistry C 113, 10390–10394 2009

A.-S. Müller, T. Baumbach, S. Casalbuoni, B. Gasharova, M. Hagelstein, E. Huttel, Y.-L. Mathis, D. A. Moss, A. Plech, R. Rossmanith, E. Bruendermann, M.Havenith, S. Hillenbrand, K. G. Sonnad

Proceedings of PAC09, TU5RFP028


A. Plech, A.-S. Müller, A. Bartels, R. Weigel, Y.-L. Mathis, E. Huttel, S. Casalbuoni, K. Sonnad

Proceedings of PAC09, TU5RFP026 2009

A. Plech, H. Ihee, M. Cammarata, A. Siems, V. Kotaidis, F. Ciesa, J. Kim, K. H. Kim, J. H. Lee

Ultrafast Phenomena XVI, Springer Series in Chemical Physics 92, 134-136

A. Plech, P. Leiderer, J. Boneberg

Laser & Photonics Reviews 3, 435-451 2009

Q. Kong, A. Plech, M. Wulff, M. H. J. Koch, H. Ihee

Angewandte Chemie International Edition 47, 5550–5553 2008

A. Plech, A. Siems, V. Kotaidis, A. Menzel

Proc. SPIE 6879, Photon Processing in Microelectronics and Photonics VII, 68790H, doi:10.1117/12.774664
A. Plech, V. Kotaidis, A. Siems, M. Sztucki Physical Chemistry Chemical Physics 10, 3888-3894

Type Title Tutor
Kurzfristig: Phononendynamik von thermoelektrischen Modellsystemen
Study of nanoparticle generation by laser ablation