The group provides predictive simulations of:
– high-harmonic spectra of solids upon strong laser field, from UV to mid IR, and the related electron excitation dynamics (TDDFT), [1-2]
– thermal and excitation predictions of metals and semiconductors using advanced two-temperature modeling [3-7] (completed by first-principles features [1]) for materials’ nanostructuring [8-12], chemical functionalization [6] and damage [7] induced by ultrashort laser pulses,
– polaritonic and plasmonic effects (field enhancement, nanostructuring [8-12]) in nano- and micrometric systems (nanoparticle, tips, thin films [7]),
– prediction of photo-emission spectra [2, in development],
– energy- and time-resolved pump-probe reflectivity (UV-IR) in the regime of materials modification.

[1] P. Suthar, F. Trojanek, P. Maly, T. J.-Y. Derrien, M. Kozak, Commun. Phys. 5, 288 (2022).
[2] T. J.-Y. Derrien et al., Phys. Rev. B. 104, L241201 (2021).

[3] T. J.-Y. Derrien et al., Appl. Phys. A. 117, 77–81 (2014).
[4] T. J.-Y. Derrien et al., Opt. Express. 24, 29643–29655 (2013).
[5] T. J.-Y. Derrien, N. Bulgakova, Proc. SPIE Opt. Optoelectron. 10228, 102280E–1 (2017).
[6] K. A. Drogowska-Horna et al., Nano Res. 13, 2332–2339 (2020).
[7] K. Hlinomaz, Y. Levy, T. J.-Y. Derrien, N. M. Bulgakova, Int. J. Heat Mass Transf., in press.

[8] T. J.-Y. Derrien et al., J Appl Phys. 116, 074902 (2014).
[9] A. V. Dostovalov et al., Appl. Surf. Sci. 491, 650–658 (2019).
[10] T. J.-Y. Derrien, J. Krüger, J. Bonse, J. Opt. 18, 115007 (2016).
[11] I. Gnilitskyi et al., Sci. Rep. 7, 8485 (2017).
[12] I. Gnilitskyi, L. Orazi, T. J.-Y. Derrien, N. M. Bulgakova, T. Mocek, Method of ultrafast laser
writing of highly-regular periodic structures on metallic materials (2016), (available at
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO18010707).

Organizational aspects

To improve understanding with students, collaborators, and funding agencies, I provide here an example of working time breakdown. Among last 12 months (~ 2000 h of work for 1 FTE), distribution of activities for 1 FTE has been more or less distributed as follows.

  • Management of project funds: 446 hours (22%).
  • Working on publications: 415 hours (20%).
  • Supervision of students: 280 hours (14%).
  • Working on collaborative works: 235 hours (11%).
  • Fulfilling obligatory administrative duties: 220 hours (11%).
  • Preparing and going to conferences: 215 hours (11%).
  • Time optimization and planning: 100 hours (5%).
  • Computational administration for the department: 103 hours (5%).
  • Developing collaborations abroad: 78 hours (4%).

Analysis shows that we are more or less doing everything by ourselves, and that main activities are management, publishing and supervising students.