Abstract
Structured photonic systems provide a powerful route to tailor light-matter interaction by engineering geometry, symmetry, dispersion, and resonant modes. This seminar explores how such platforms can be used to control optical emission and ultrafast dynamics across three representative systems. First, I study Cherenkov radiation in a rotation-modified medium, where motion-induced magnetoelectric coupling reshapes the emission condition, radiation angle, and spectral density. Second, I design a LiNbO3 resonant metasurface for spontaneous parametric down-conversion (SPDC) photon-pair generation, using quasi-bound state in the continuum (Q-BIC) modes to enhance nonlinear light-matter interaction and control far-field polarization. Finally, I work on a pump-probe optical setup for ultrafast spectral, spatial, and momentum-resolved characterization. Collectively, these three projects connect theoretical modeling, nanophotonic design, and ultrafast measurement, aiming toward controllable radiation, nonlinear quantum light generation, and time-dependent optical responses in structured photonic platforms.
Anyone interested is welcome to attend.