Figure 5

(a–d) Experimental dispersion relations of the emission recorded for rings with inner diameter din of 6, 8, 10, and 12 µm. (e) Variation of the confined super Tamm fundamental mode quality factor as a function of din.

(a–d) Experimental dispersion relations of the emission recorded for rings with inner diameter din of 6, 8, 10, and 12 µm. (e) Variation of the confined super Tamm fundamental mode quality factor as a function of din.