Chaos-induced transparency in an ultrahigh-Q optical microcavity
Abstract
We demonstrate experimentally a new form of induced transparency, i.e., chaos-induced transparency, in a slightly deformed microcavity which support both continuous chaotic modes and discrete regular modes with Q factors exceeding 3X?10^7. When excited by a focused laser beam, the induced transparency in the transmission spectrum originates from the destructive interference of two parallel optical pathways: (i) directly refractive excitation of the chaotic modes, and (ii) excitation of the ultra-high-Q regular mode via chaos-assisted dynamical tunneling mechanism coupling back to the chaotic modes. By controlling the focal position of the laser beam, the induced transparency experiences a highly tunable Fano-like asymmetric lineshape. The experimental results are modeled by a quantum scattering theory and show excellent agreement. This chaos-induced transparency is accompanied by extremely steep normal dispersion, and may open up new possibilities a dramatic slow light behavior and a significant enhancement of nonlinear interactions.
Keywords
Cite
@article{arxiv.1209.4441,
title = {Chaos-induced transparency in an ultrahigh-Q optical microcavity},
author = {Yun-Feng Xiao and Xue-Feng Jiang and Qi-Fan Yang and Li Wang and Kebin Shi and Yan Li and Qihuang Gong},
journal= {arXiv preprint arXiv:1209.4441},
year = {2013}
}
Comments
5 pages, 5 figues