People involved

Research line leader

Staff researchers
Giacomo Corrielli
Francesco Ceccarelli
Associate researchers
Andrea Crespi
Giulio Cerullo
Roberta Ramponi
Post docs
Petra Paiè
Simone Atzeni

Luca Pertoldi
Alessio Pansieri

PhD students
Simone Piacentini
Federico Sala
Roberto Memeo
Andrea Zanoni
Ciro Pentangelo

Master thesis students
Riccardo Albiero
Federico Bassi
Mario Buffone
Andrea Comi
Pasquale Barbato
Emanuele Urbinati
Femtosecond laser micromachining of transparent materials is a rapidly expanding field that started in the late '90s. It has evolved from an exotic phenomenological observation into a robust, flexible and powerful microfabrication technology, which produces devices that can compete with those fabricated by standard 


Paper on Three-dimensional femtosecond laser nanolithography of crystals has been published on Nature Photonics

Paper on Pattern recognition techniques for Boson Sampling validation has been published on Physical Review X

Paper on Experimental statistical signature of many-body quantum interference has been published on Nature Photonics

Nature News & Views by Roberto Osellame

ERC Advanced Grant to Roberto Osellame, Senior Researcher at IFN-CNR

Paper on Hyperentanglement on a chip has been published on Light: Science & Applications.

technologies. In addition, femtosecond laser micromachining has unique three-dimensional capabilities that enables unprecedented designs and device architectures.

The core idea behind this technology is nonlinear absorption. The extremely high intensity achieved in the focal volume of a focussed femtosecond laser pulse induces nonlinear phenomena such as multiphoton or tunneling ionization and avalanche ionization, thus producing a very localized deposit of energy in the volume of the material. Suitable motion of the sample can produce 3D modifications.

The basic devices that can be fabricated by this technology are optical waveguides and microfluidic channels (the latter requires a subsequent etching step). Further processing tasks that can be performed by this technology are: welding, cutting, surface texturing, etc. Combination of all these capabilities result extremely powerful in producing complex photonic and optofluidic devices that are also characterized in our labs.