Figure 5

Purcell factor \(\text{ F}_\text{ P }\) (a) for a different displacement d of the MD emitter along the axis of symmetry of the resonator, keeping \(\alpha =30^ \circ \) and \(R = 70\) nm fixed, and (b) for different angles of the tapered well, provided that \(d = 5\) nm and \(R = 70\) nm.