Physics – Optics
Scientific paper
2009-10-26
J. Opt. Soc. Am. B, Vol. 29, Issue 2, pp. A1-A5 (2012)
Physics
Optics
Discussed effect of probe bandwidth. Included functional forms of n(z) and R(z)
Scientific paper
10.1364/JOSAB.29.0000A1
We study the time-resolved reflectivity spectrum of a switched planar GaAs-AlAs microcavity. Between 5 and 40 ps after the switching (pump) pulse we observe a strong excess probe reflectivity and a change of the frequency of light trapped in the cavity up to 5 linewidths away from the cavity resonance. This frequency change does not adiabatically follow the fast-changing cavity resonance. The frequency change is attributed to an accumulated phase change due to the time-dependent refractive index. An analytical model predicts dynamics in qualitative agreement with the experiments, and points to crucial parameters that control future applications.
Bakker Huib J.
Claudon Julien
Gérard Jean-Michel
Harding Philip J.
Hartsuiker Alex
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