A CNRS Engineering News Article on the DENSE ANR Project

A single shot from an ultra-short pulse laser can create a nanometer-sized pillar on the surface of a material. This new nanofabrication method, developed at the Institut Franche-Comté électronique mécanique thermique et optique – sciences et technologies, has potential applications in numerous fields: mechanics, biology, photonics, and phononics. The study results are published in Laser & Photonics Reviews.

Femtosecond lasers, which deliver ultra-short pulses (10^-15 s), have enabled significant advances in surface nanotexturing and material ablation. Research conducted at the Institut Franche-Comté électronique mécanique thermique et optique – sciences et technologies (Femto-ST, CNRS/SUPMICROTECH – ENSMM/Université de Franche-Comté/Université de technologie de Belfort-Montbéliard) now opens a new pathway for material processing using femtosecond lasers. The team has developed an experimental method to generate the emergence of nano-pillars on the surface of sapphire using a single laser shot. This research was conducted as part of the DENSE ANR project, in collaboration with the Laboratoire de Géologie de Lyon – Terre, Planètes, Environnement (LGL-TPE, CNRS/ENS Lyon/Université Claude Bernard) and the Georges Friedel Laboratory (LGF, CNRS/Mines Saint-Étienne).

You can find the CNRS Engineering news article directly on the CNRS website by following this link.

Contact: Sergio Sao-Jao