相似变形圆柱形聚合物激光器定向辐射图形的形状敏感性
Dramatic Shape Sensitivity of Directional Emission Patterns from Similarly Deformed Cylindrical Polymer Lasers
摘要：
最近的实验表明，在类似形状的聚合物微腔激光器的远场发射模式的显着差异。我们表明，不同的变形的椭圆形，四极和十六极，在远场发射模式的巨大差异是由不同的射线动力学对应于每个形状的解释。分析射线运动的适当相空间的差异，它表明，不同的几何形状的不稳定流形的周期轨道是决定远场图案的决定性因素。令人惊讶的是，我们发现，强混沌射线动力学是兼容的高度定向发射在远场。
英文摘要：
Recent experiments on similarly shaped polymer micro-cavity lasers show a dramatic difference in the far-field emission patterns. We show for different deformations of the ellipse, quadrupole and hexadecapole that the large differences in the far-field emission patterns is explained by the differing ray dynamics corresponding to each shape. Analyzing the differences in the appropriate phase space for ray motion, it is shown that the differing geometries of the unstable manifolds of periodic orbits are the decisive factors in determining the far-field pattern. Surprisingly, we find that strongly chaotic ray dynamics is compatible with highly directional emission in the far-field.
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