5 oral contributions (incl. 2 invited) were given by the group in the last 3 months

Since September, the activities of the group were reported in 5 oral presentations at international conferences, including 2 invited talks. 4 of these oral presentations are available on Youtube.

  1. Advanced Laser Technologies (Moscow), 2 presentations from the group (incl. 1 invited).
  2. Ulltrafast Light (Moscow), Invited talk (20 min), 1 invited presentation from the group.
  3. Actual problems in Solid State Physics (Belarus), 2 oral contributions (10 min each), from the group.
  1. T. J.-Y. Derrien, Y. Levy, N.M. Bulgakova,
    Assessment of the time-dependent density functional theory for investigating femtosecond laser energy absorption by metals, invited oral presentation (20 min)
    September 6th, 2021
    Advanced Laser Technologies (ALT21)
    Moscow (online)
    Russian Federation
  2. K. Hlinomaz, Y. Levy, T. Derrien, N. M. Bulgakova
    Numerical Modeling of Thermal Response of Molybdenum Thin Film on Different Substrates Irradiated by Short Laser Pulse (oral presentation, 15 min).
    September 6th, 2021
    Advanced Laser Technologies (ALT21)
    Moscow (online)
    Russian Federation
  3. T. J.-Y. Derrien
    Ultrafast excitation of electrons in crystals: insights from non-equilibrium band structure calculations (invited oral presentation, 20 min)
    October 4th-8th, 2021
    Ultrafast Light (Lebedev Institute)
    Moscow (online)
    Russian Federation
  4. T. J.-Y. Derrien
    Ultrafast excitation of electrons in crystals: insights from non-equilibrium band structure calculations (oral presentation, 10 min)
    November 22nd-26th, 2021
    Actual problems in Solid State Physics (APSSP 2021)
    Minsk (online)
    Belarus
  5. K. Hlinomaz , A. S. Fedotov, I. Timoshchenko, A. Kozlovski, Y. Levy , T. J.-Y. Derrien, V. P. Zhukov, O. G. Romanov, N. M. Bulgakova
    Towards Description of Mechanical Damage of Thin Molybdenum Film upon Pulsed Laser Irradiation (oral presentation, 10 min).
    November 22nd-26th, 2021
    Actual problems in Solid State Physics (APSSP 2021)
    Minsk (online)
    Belarus

Presentation of contributions from Bc. Kristyna Gazdova will be introduced in next conferences.

Springer chapter submitted

Prof. N. M. Bulgakova has submitted a chapter of 60 pages, 22 figures and 299 references for a book of Springer publishing house being in preparation by editors prof. Razvan Stoian (Laboratoire Hubert Curien) and prof. Jörn Bonse (BAM Berlin).

Dr. T. J.-Y. Derrien and Y. Levy gratefully thank prof. Bulgakova for the kind invitation to contribute jointly to the chapter that has a good probability to be the 1st chapter of the book.

Looking forward!

HPC project PRACE-DECI-17th “Frecuencia” granted our research group with 6.95 million core-hours to be used before September 2022.

To support quantum modeling activities [based on the time-dependent density functional theory (TDDFT)] of the Department of Scientific Laser Applications, the group of Ultrafast Photonics led by T. J.-Y. Derrien obtained today 6.95 millions core-hours of computational time in one of the supercomputers of the PRACE EU network (project FRECUENCIA).

Along with the IT4I.cz project FLAMENCO (3.8 million core-hours), this computational time will be employed for resolving the dynamics of electrons in solid materials upon ultrashort laser irradiation in various experimental situations. The project also aims at testing the tools for employing more effective formalisms for the study of laser-matter interaction in future.

HPC project IT4I/FLAMENCO: second period fully granted with 3.8 millions core-hours

After submission of our first TDDFT-baked publication, national facilities of IT4I.cz kindly provided the full requested time for our second period of the FLAMENCO project. This amount of computational time must be used by 9 months, up to March 2022.

A PhD student position aimed at supporting the development of TDDFT activities at HiLASE is open and will give opportunity to ambitious and talented student to make his/her steps in high power computation for laser processing.

The list of active collaborations articulated around the TDDFT activities is available.

PhD position for 2021-2024 is now open

A PhD position is open in the group of Ultrafast Photonics, on quantum modeling of laser-matter interaction with solids. It consists in numerical modeling using high power computations.

The offer is available at the top here: https://www.hilase.cz/en/list-of-ph-d-thesis-topics/

To apply, just contact me by email [ d e r r i e n (arobase) f z u . c z ], or Twitter (@tjyderrien), or by reply to this post.

Looking forward to meeting new curious people!
Thibault JY Derrien

Python repositories: reshaped & packaged.

Our Python repositories Octopus-slabs and SPP-extended-theory are going through a makeover!

  • Transition to Python3 was finally made.
  • Then the codes were packaged for Conda and Pip.
  • Our codes can now be distributed and used in any environment.
  • Latest version of Octopus-slabs is v2.2 and SPP-extended-theory is v5.0.

We are now a research group of the Department of Scientific Laser Applications (Institute of Physics)

From Friday 5th of February 2021, QuantumLaP.eu becomes the Group of Ultrafast Photonics, led by T. J.-Y. Derrien. The group is a part of the Department of Scientific Laser Applications led by prof. Bulgakova, and is hosted by the HiLASE Centre (T. Mocek), part of the Institute of Physics.

A press communication was released on LInkedIn in April 2021 to announce this modification.
The website of HiLASE has been modified on June 23rd 2021 with the up-to-date position of group leader.
Note that website of FZU.cz could not yet be modified by the PR team due to IT safety reasons.

The group is presently kindly funded by Horizon 2020 project Center of Excellence (T. Mocek), and by the National Excellent BIATRI project (prof. Bulgakova).

The group is presently counting 1 PhD student MSc. Krystof Hlinomaz who has been focusing at laser-irradiated thin films. The group is meant to grow in the next months with:

  • Hiring a new PhD student focusing on TDDFT in 2021,
  • Applying to ERC consolidator grants (deadline 20th April 2021).

The group is heading towards developing the processing of materials using ultrashort laser pulses, being fully assisted by first principle simulations and condensed matter physics. More details will be disclosed along the year.

Note that the updates of the corresponding websites is taking months due to the number and availability of people involved in the chain.

Our theoretical prediction of necessary experimental conditions for reaching highly-regular LIPSS has now been realized on Cu

Our predictions of optimal wavelength for preparing Highly-Regular Laser-Induced Periodic Surface Structures (HR-LIPSS) on metals [Sci. Rep. (2017)] have been confirmed experimentally for the case of Cu at 515 nm. The proof is visible in Fig. 4 in Nanomaterials (MDPI).

The concept and the laser process have been subjected to EU protection, a patent that was granted recently to the Institute of Physics (HiLASE Centre), available at this address.