Séminaire

Vendredi 18 Octobre 2024 à 11h00.

Opto-thermal interplay in nanostructures: from phase-transition to beam steering

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The ability to tune the optical properties of nanostructures using external stimuli is crucial for a wide range of technologies, including telecommunications, biochemistry, and defense. Specifically, by adjusting the operating temperature of devices, their electromagnetic properties can be dramatically altered, resulting in a completely different optical response. This talk will discuss the opto-thermal phase transition in phase-change materials like VO2 and GST. Additionally, thermal tuning can be applied to modify the nonlinear response of nano-objects, such as the second-harmonic generation in AlGaAs nanoresonators, enabling optical beam steering.

Short CV:

Dr. Marco Gandolfi is currently an Assistant Professor at the Department of Information Engineering, in Brescia, Italy and associate of the National Research Council, National Institute of Optics (CNR-INO).

He holds a Bachelor degree in Mathematics and a Master degree Physics in from Università Cattolica, Milan, Italy. He received his Ph.D. in Physics in 2019 from KU Leuven University, Belgium., discussing a thesis on Uultrafast thermomechanics at the nanoscale. During this period he spent 9 months visiting the FemtoNanoOptics group, Université Lyon 1 (France), to work on a joint research project.

From 2019 to 2021 he was Postdoc Researcher at National Research Council, National Institute of Optics (CNR-INO), Italy.

Dr. Gandolfi is author of more than 35 peer-reviewed papers and is a referee for several international journals. His research topics cover the opto-thermo-mechanical modeling of nano-objects and nanostructures.

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