The book of “Ultrafast Laser Nanostructuring” (Springer) has now been published

The book of “Ultrafast Laser Nanostructuring” (Springer) is now available for purchase. The book is composed of 3 parts:

  • Fundamentals Processes
  • Concepts of Extreme Nanostructuring
  • Applications

We are delighted to have contributed to it with the large community of laser processing of solids.

Our chapter is introducing the 3 volumes and provides an overview of physical and chemical phenomena taking place during the laser-matter interaction, complemented with understanding gained from quantum ab-initio approaches employed and developed in the group of Ultrafast Photonics.

Visit from Prof. Cristian Sanchez

The department of Scientific Laser Applications (SLA) is hosting prof. Cristian Sanchez for 2 months, thanks to the Marie Sklodowska Curie Actions (MSCA) Research and Innovation Staff Exchange (RISE) program “ATLANTIC”.

The stay started with a tour of the femtosecond laboratory of prof. Bulgakova and with first scientific discussions with the group of Ultrafast Photonics led by T. Derrien.

T. Derrien gave an invited seminar at the University of Chemical Technologies on April 26th 2023

T. Derrien, leader of the group of Ultrafast Photonics, was invited by assoc. prof. Petr Kovaricek from the University of Chemical Technologies (UCT Prague), to give a 45 min lecture on the physics of polaritons in light-matter interaction, both using classical and quantum approaches.

In this occasion, a PhD student from University of Cuyo (Mendoza, Argentina), Andres Bertoni, has visited the laboratory of assoc. prof. Petr Kovaricek. The stay of Lic. Andres Bertoni at the HiLASE Centre is funded by the Marie Curie RISE “ATLANTIC” project, that supports academic exchanges between 10 institutions in the world.

Novel materials for plasmonics: our predictions have contributed to the development of a new microscope

Classes of materials that are able to support surface plasmon polaritons has been historically narrow. By experience, researchers and engineers had rather been investing in heterostructures that can carry plasmon polaritons on long distances (using gold, silver, platinum, aluminum, …).

In 2016, we published a study that proposed a new class of materials that support lossy modes of surface electromagnetic wave propagation (plasmon polaritons) [1]. In this study, the particular case of Nb was identified as one of the most borderline materials that should be supporting the effect upon visible light.

A new study just appeared [2], that realizes a microscope using Nb contacts, a choice that challenges our theory [1]. In their study [2], the authors have developed a Raman microscope using the material that, according to our theory, should be supporting plasmon polaritons, while established theories had rejected it.

This realization opens a second field of applications for our “extended plasmonic” theory, that already demonstrated its use in increasing the regularity of light-induced nanostructures [3], a work that has generated a Top1% highly-cited publication in Scientific Reports, and a European patent [4] for covering metals using highly regular nanostructures at industrially competitive production velocities.

This new success is a great demonstration of the possibilities offered by bridging fundamental knowledge with novel innovative fields of nano-photonics, and of the importance of developing basic theory for enabling new innovations.

Another envisioned application can be a guided choice of materials for miniaturization of photonic components in integrated circuits.

[1] Derrien, T. J.-Y.; Krüger, J. & Bonse, J. Properties of surface plasmon polaritons on lossy materials: lifetimes, periods and excitation conditions. Journal of Optics, 18, 115007 (2016)
[2] F. Telesio, F. Mezzadri, M. Serrano-Ruiz, M. Peruzzini, F. Bisio, S. Heum, F. Fabbri, Propagation of Visible Light in Nanostructured Niobium Stripes Embedded in a Dielectric Polymer, Materials for Quantum Technology, 2, 045003 (2022).
[3] Gnilitskyi, I.; Derrien, T. J.-Y.; Levy, Y.; Bulgakova, N. M.; Mocek, T. & Orazi, L. High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity. Scientific reports, 7, 8485 (2017)
[4] Gnilitskyi, I.; Orazi, L.; Derrien, T. J.-Y.; Bulgakova, N. M. & Mocek, T. Method and system of ultrafast laser writing of highly-regular periodic structures, European Patent Office, No. WO18010707, 2016.

Achievements of 2022

In preparation of next proposals, the list of communications made in 2022 has now been updated.

In 2022, our group of 2.2 FTEs has:

  • contributed to 3 publications (average IF 6.44) and to 1 chapter for Springer (as 1st author, 1st chapter),
  • attended 7 conferences,
  • given 3 invited oral presentations in international conferences,
  • obtained a 50,000 CZK award from the Czech Academy of Sciences for the best submitted proposal to European Research Council,
  • traveled to USA, Argentina, Austria, France and UK,
  • consumed 8 millions core-hours at PRACE Portugal and IT4I Czech Republic.

Conferences & seminars up to June 2023 (updated)

This partially-funded-year, the group of Ultrafast Photonics will participate in the following conferences:

  • April 17th-18th: 5th BIATRI workshop will take place on these dates. This year, collaborators from BIATRI & ATLANTIC projects will be invited to the workshop, in addition to few external people. See announcement here.
  • April 26th: T. J.-Y. Derrien will present an invited lecture on bulk and surface polaritons from classical and quantum points of view at the University of Chemical Technologies (UCT). Stay tuned!
  • May 29th – June 2nd: T. J.-Y. Derrien will chair one session at European Materials Research Society (EMRS) Strasbourg, France, and present one oral contribution on symmetry breaking in laser processing.
  • June 13th-16th: Laser Precision Microfabrication (LPM) Japan, where TJY Derrien is honored to be co-organizer for a Special Symposium on Machine Learning in Laser Processing with Prof. Ishikawa (University of Tokyo) and Dr. Otobe (QST National Institute for Quantum Science and Technology).
  • June 13th-16th: A poster contribution for the LPM conference with prof. Bulgakova on bridging TDDFT and large-scale modeling using machine learning, a task related to the ATLANTIC project.
  • June 26th-30th: A contribution was submitted to CLEO Europe (Munich), on the observation of symmetry breaking in processing silicon at sufficiently high intensity. The work is supported by experimental results from Dr. Yoann Levy’s group at HiLASE, and is also related to a deliverable of the ATLANTIC project.

Other possibilities:

  • April 23rd-27th: SPIE Photonics 2023 will be hosted in Prague. We did not submit an abstract this year, but one may attend at last moment in consultation mode.

T. Derrien visited the group of Computational Chemistry in Cordoba, Argentina

Dr. Thibault J.-Y. Derrien, leader of the Group of Ultrafast Photonics of Department of Scientific Laser Applications of the HiLASE Centre, met with the groups of Dr. Matias Berdakin, Dr. German Soldano and Dr. Raul Bustos in Universidad Nacional de Cordoba (UNC, Argentina).

Scientists exchanged on mutual interests and initiated joint collaboration on common thematics.

Strengthening the diplomatic relations and the scientific programs between the Czech Republic and Argentina would be of great benefit for both countries.

This visit was supported by Marie Sklodowska Curie Actions (MSCA) for Research and Innovation Staff Exchange (RISE) “ATLANTIC”, a program of the European Union (grant agreement no. 823897).

TJY Derrien co-animated the Optica writing workshop for students of the Charles University (Prague)

The faculty of Mathematics and Physics of the Charles University organized a Writing workshop in collaboration with Optica, the former Optical Society of America.

Main organizers were Dr. Clauss Roll, director of Optica Europe and MSc. Andrej Farkas, PhD student of the faculty.

Dr. Clauss Roll presented general aspects of the publication process, and Thibault Derrien, associate editor for Optics Express (Optica) presented the submission and the peer-review processes in more details.

A masterclass for writing abstracts efficiently then took place. Each student wrote a structured abstract and received feedback via online system.

The workshop took place as an hybrid event since TJY Derrien is presently travelling in Argentina.

We are getting trained on a new simulation technique in Mendoza, Argentina

Dr. Thibault J.-Y. Derrien, scientist from the Group of Ultrafast Photonics (Department of Scientific Laser Applications) of the HiLASE Centre, has spent one month in the groups of Prof. Cristian Sanchez and Prof. Mario del Popolo, established at the University de Cuyo, Mendoza (Argentina). During his stay, he was introduced to simulation methods that can predict the consequences of pulsed laser radiation at organic materials and molecules. The methods can be employed to design processes that are based on usage of intense laser light for the fields of organic chemistry, biology and drug design.

This exchange was supported by the Marie Sklodowska Curie Actions (MSCA) for Research and Innovation Staff Exchange (RISE) “ATLANTIC” that funds a network of researchers in numerical modeling of laser irradiation with materials, a program of the European Union (grant agreement no. 823897).