OSC Colloquium: Alireza Marandi

    Thursday, March 25, 2021 - 3:30pm - 5:00pm
    Virtual Via Zoom

    Open to campus and public.


    Speaker: Alireza Marandi

    Topic:“Optical Parametric Oscillators and their Networks: New Opportunities for Photonic Sensing and Computing”

    Zoom Link to Attend - https://arizona.zoom.us/j/94012959093

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    Optical parametric oscillators (OPOs) have powered a wide range of quantum and classical experiments in the past 50 years. Recent advances in understanding their complex nonlinear dynamical behaviors as well as the experimental progress in implementation of large-scale networks of them have opened unique opportunities for practical and scalable photonic solutions for molecular sensing and non-classical computing. In this talk, I will overview operation principles of individual quadratic OPOs around degeneracy and some of the recent discoveries of their nonlinear dynamical behaviors including critical points and phase transitions in their spectrum [1] as well as formation of temporal solitons [2] and how they can enable new directions for molecular sensing in the mid-IR. I will also discuss networks of OPOs and how they have enabled development of a scalable photonic computing platform, namely the optical Ising machines [3, 4], for various combinatorial optimization problems. I will overview some of the experimental progress on OPO networks and their advancements for quantum engineering, and topological and non-Hermitian photonics [5]. Moreover, I will present the progress toward integrated OPO networks, and potential paths for their nanoscale implementation [6].



    [1] Nature Communications 12, 835 (2021)

    [2] Physical Review Letters 120 (5), 053904 (2018)

    [3] Nature Photonics 8 (12), 937-942 (2014).

    [4] Science 354 (6312), 614-617 (2016).

    [5] Optica 8 (3), 415-421 (2021)

    [6] Optica 8 (2), 262-268 (2021)

    Speaker Bio(s): 

    Alireza Marandi is an Assistant Professor of Electrical Engineering and Applied Physics at Caltech. He received his PhD from Stanford University in 2013. Before joining Caltech he held positions as a postdoctoral scholar and a research engineer at Stanford, a visiting scientist at the National Institute of Informatics in Japan, and a senior engineer in the Advanced Technology Group of Dolby Laboratories. Marandi is a Senior Member of OSA and IEEE and has been the recipient of NSF CAREER award, the AFOSR YIP award, and the Young Scientist Prize of the IUPAP. He is named the 2019 KNI-Wheatley Scholar.