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On the use of femtosecond laser for tuning materials properties (Conference Presentation)

Over the last decades, the use of non-linear absorption phenomena triggered by ultrafast laser exposure in dielectrics has been widely explored, essentially with the aim of fabricating elements for integrated optics - such as waveguides and gratings, or for fabricating three-dimensional parts - such as fluidics channels and structural elements. 

Here we will discuss how this peculiar laser-matter interaction also provides a means for tailoring a variety of physical properties in materials, including heat conductivity, thermal expansion, Young modulus and stress state surrounding laser-affected zones. 

The ability to tune physical properties of dielectrics in three dimensions not only opens up interesting perspectives for sophisticated functional devices, but also a means to elucidate key mechanisms of ultrafast non-ablative laser-matter interactions.