Am. Vredenberg et al., CONTROLLED ATOMIC SPONTANEOUS EMISSION FROM ER3+ IN A TRANSPARENT SI SIO2 MICROCAVITY/, Physical review letters, 71(4), 1993, pp. 517-530
The spontaneous emission lifetime and intensity of Er implanted into S
iO2 is modified by a Si/SiO2 planar microcavity. The cavity strongly a
ffects the coupling of the optically excited Er3+ to the radiative and
waveguiding modes of the system, resulting in a spontaneous lifetime
of 14.8 ms for a cavity off-resonance with the Er3+ versus a lifetime
of 9.1 ms for an on-resonance cavity. The observed spontaneous emissio
n lifetime changes agree well with calculated values based on a comput
ation method which is also presented.