General Seminar
Tuesday, 11 August 2026, 11:00 am
CETAL, Seminar room
Title: Femtosecond Laser Micromachining of Glass Devices for Strong Laser Fields Applications
Presenter: Dr. Rebeca Martínez Vázquez, Istituto di Fotonica e Nanotecnologie (IFN) – CNR Dipartimento di Fisica – Politecnico di Milano
Abstract: Femtosecond laser micromachining is an already established technique for fabricating integrated microfluidic devices in glass. This rapid, maskless manufacturing process possesses inherent three-dimensional properties, allowing for the prototyping of complex lab-on-a-chip devices with several functionalities. As a result, these devices find widespread use in research areas such as chemistry and biology.
Recently we have demonstrated that femtosecond laser micromachining followed by chemical etching also allows the prototyping of microfluidic glass devices that combine the benefits of gas microfluidics and ultrafast nonlinear optics in hollow-core waveguides. The foundation are 3D networks of empty channels, embedded in fused silica, that permits to confine the driving field and eventually gas samples for the generation of High order harmonics in different regimes [1,2]. Moreover, the same hollow WG approach is used to create more complicated devices that integrate more complex functionalities like a gas differential pumping or like beam splitters and interferometers.
We envisage that the high adaptability of our hollow WG approach will pave the way to compact EUV lines and even EUV integrated optics.
