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

Yves Bellouard

doi:10.1117/12.2551407

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9 March 2020 On the use of femtosecond laser for tuning materials properties (Conference Presentation)

Yves Bellouard

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Proceedings Volume 11267, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXV; 112670A (2020) https://doi.org/10.1117/12.2551407
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

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.

Conference Presentation

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Yves Bellouard "On the use of femtosecond laser for tuning materials properties (Conference Presentation)", Proc. SPIE 11267, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXV, 112670A (9 March 2020); https://doi.org/10.1117/12.2551407

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