Thermo-optic hysteresis with bound states in the continuum

D. N. Maksimov, A. S. Kostyukov, A. E. Ershov, M. S. Molokeev, E. N. Bulgakov, and V. S. Gerasimov// Physical Review A//


We consider thermo-optic hysteresis in a silicon structure supporting bound states in the continuum. Taking into account radiative heat transfer as a major cooling mechanism we constructed a nonlinear model describing the optical response. It is shown that the thermo-optic hysteresis can be obtained with low intensities of incident light I01W/m2 at the red edge of the visible under the critical coupling condition.