2012/09/30 by Qi-Fan Yang, Qi‐Fan Yang, Xuefeng Jiang +5 · 35 citations
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Computer science #Coupling (piping) #Fano resonance #Materials science #Mechanical and Optical Resonators #Photonic and Optical Devices #Physics #Quantum mechanics #Quantum tunnelling #Resonance (particle physics) #Space (punctuation) #physics.optics
paper · pdf · doi:10.1103/physreva.88.023810
published in Physical Review A 88(2) (American Physical Society) · 8 pages, 6 figures
arxiv created 2013/04/15 · openalex publication_date 2013/08/07 · arxiv updated 2013/08/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the efficient free-space excitation of high-Q resonance modes in deformed microcavities via dynamical tunneling-assisted coupling. A quantum scattering theory is employed to study the free-space transmission properties, and it is found that the transmission includes the contribution from (1) the off-resonance background and (2) the on-resonance modulation, corresponding to the absence and presence of high-Q modes, respectively. The theory predicts asymmetric Fano-like resonances around high-Q modes in background transmission spectra, which are in good agreement with our recent experimental results. Dynamical tunneling across Kolmogorov-Arnold-Moser tori, which plays an essential role in the Fano-like resonance, is further studied. This efficient free-space coupling holds potential advantages to simplify experimental conditions and excite high-Q modes in higher-index-material microcavities.