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Published on: October 13, 2017
Orbit-Resolved Imaging of Paired Resonances in a Wave-Chaotic Microcavity
Ruo-Kai Zheng1, Qi-Tao Cao1, Qihuang Gong1,2
1Peking University, State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, New Cornerstone Science Laboratory, School of Physics, 100871, Beijing, China.
Abstract:
Orbit-resolved paired resonances, sharing the same orbital period but arising from distinct phase-space structures, provide a direct probe of wave localization in chaotic microcavities. Here, we report the orbit-resolved visualization of paired resonances in a chaotic optical microcavity using a multiphoton fluorescence scheme. The high-Q island modes on stable periodic orbits and scarlike modes by partial-barrier localization in the chaotic sea are identified across multiple orbital periods. Guided by the orbit-resolved modal morphologies, phase-space selective excitation is demonstrated by tailoring the waveguide injection. Furthermore, tunneling-mediated modal hybridization between classically disjoint orbits is revealed through directly visualized superposed patterns and anticrossing spectra. Our results establish a direct link between photon dynamics and modal structure, opening a route to exploring nonlinear physics in wave-chaotic systems.
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