Phys. Rev. A 64, 023808 (2001) [5 pages]Ballistic trajectories of optical wave packets within microcavitiesReceived 10 October 2000; published 10 July 2001 We present time-resolved measurements of the ballistic trajectory of ultrashort optical wave packets circulating near the surface of a dielectric microcavity. The wave-packet dynamics are determined by using two-color two-photon induced fluorescence of Coumarin 510 within the microcavity as a correlator. Ballistic motion of the wave packets in whispering gallery modes and rainbow trajectories has been deduced from the time delay between collisions of the two wave packets. The cavity ringdown time is measured for each of the wave packets, which retain their integrity even after several round trips. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.023808
DOI:
10.1103/PhysRevA.64.023808
PACS:
42.25.Bs, 33.80.Wz, 42.65.Re
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