Events
Integrated quantum photonic platform by femtosecond laser waveguide writing
29 April 2022
Eastern Time (US & Canada) (UTC -05:00)
The field of quantum photonics promises to revolutionize the way in which we process information, thanks to the peculiar and counterintuitive properties of quantum states of light. In this regard, the use of photonic integrated circuits (PICs) will enable the miniaturization of the experimental setup needed for the generation, manipulation, and detection of single photons, beneficial for achieving a stable and scalable operation. During this talk, the role of femtosecond laser waveguide writing in the field of quantum photonics will be discussed. This microfabrication platform, based on the nonlinear interaction between an ultrafast laser and a transparent substrate, provides unique advantages, such as the possibility of inscribing complex three-dimensional waveguiding structures with low losses and a polarization insensitive behavior. After a general introduction, some selected applications of fs laser written PICs will be reported, mainly in the field of quantum information processing and quantum artificial intelligence with photons.
About Our Speaker: Simone Piacentini, Politecnico di Milano
Dr. Simone Piacentini received his M.Sc. in Engineering Physics cum laude from Politecnico di Milano in April 2018. He then started his doctoral studies in the same university, in collaboration with the Institute of Photonics and Nanotechnologies of the National Research Council (IFN-CNR). He received his PhD in Physics cum laude in March 2022, with a thesis titled “Femtosecond laser writing of photonic integrated circuits for quantum technologies”, under the supervision of Dr. Roberto Osellame. During his research activity, he visited the group of prof. Philip Walther in the University of Vienna, where he investigated the possibility of using quantum dots as efficient single photon sources. Simone is one of the founders of the Polimi Optica Student Chapter, where he first served as secretary, and currently as vice president.
