RQC Seminar

46th RQC Seminar

  • Speaker

    Dr. Daria Smirnova　
    (Australian National University)

  • Date

    16:00-17:00 (JST), May 15, 2023 (Monday)

  • Venue

    Hybrid (Zoom / Wako Main Research 3F 345-347 Seminar Room)

  • Title

    Dirac-like physics emulated in photonic platforms

  • Inquiries

    rqc_info[at]ml.riken.jp

Abstract
This talk will discuss examples of photonic systems with a massive Dirac-like spectrum that enable observation of counterparts for topological boundary modes in optics. These include a gradient catastrophe of slowly-varying wavepackets at the topological domain walls in nonlinear photonic valley-Hall insulators and trapped eigenstates in nanostructured metasurfaces. In particular, adiabatic mass profiles in structured photonic materials give rise to electromagnetic modes endowed with some unique characteristics, such as spin-dependent radiative losses and radiation profiles analogous to various atomic orbitals.

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