arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1004.0506nlin.CDphysics.optics
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微腔激光器的混沌辅助定向光发射

Chaos-assisted directional light emission from microcavity lasers

Susumu Shinohara, Takahisa Harayama, Takehiro Fukushima, Martina Hentschel, Takahiko Sasaki, Evgenii E. Narimanov

摘要:

通过引入适当设计的变形盘腔,研究了动态隧穿效应对射线混沌微腔辐射的影响。我们重点研究了它的高品质因数模,这些模强烈地局限于由全内反射限制的稳定的周期性光线轨道。结果表明,占主导地位的发射起源于隧道从周期性的射线轨道的混沌的,后者最终逃离腔折射,导致定向发射,这是意想不到的周期性轨道的几何形状,但充分解释了不稳定流形的混沌射线动力学。实验进行选择性激发这些模式,我们成功地观察到的方向性发射与理论预测。这提供了决定性的实验证据的动态隧穿的光线混沌微腔。

英文摘要:

We study the effect of dynamical tunneling on emission from ray-chaotic microcavities by introducing a suitably designed deformed disk cavity. We focus on its high quality factor modes strongly localized along a stable periodic ray orbit confined by total internal reflection. It is shown that dominant emission originates from the tunneling from the periodic ray orbit to chaotic ones; the latter eventually escape from the cavity refractively, resulting in directional emission that is unexpected from the geometry of the periodic orbit, but fully explained by unstable manifolds of chaotic ray dynamics. Experimentally performing selective excitation of those modes, we succeeded in observing the directional emission in good agreement with theoretical prediction. This provides decisive experimental evidence of dynamical tunneling in a ray-chaotic microcavity.

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