Fig. 4.
(A) Quality factor of nanocavities made of the same indefinite media but with different cavity size. The red squares represent the Q values in cavities neglecting the material losses. The green circles are the Q factors obtained in cavities considering full material losses. Fitting of the data gives the behavior of Qrad ∼ k4 ∼ L-4. (B) Q/Vm values neglecting the materials loss (red squares) and considering the material loss (green circles), depending on the size of the indefinite nanocavities, where Vm is the mode volume calculated from simulation results (SI Text).