无损锥形、高斯光束、自由空间模式：驻波与湍流波
Lossless Tapers, Gaussian Beams, Free-Space Modes: Standing Waves Versus Through-Flowing Waves
摘要：
人们注意到，在过去，以避免物理上的不一致，在马卡蒂利的无损锥形通过流动波必须从驻波有很大的不同。首先，我们重新确认这一点的数值结果的基础上扩展BPM算法。接下来，我们证明了这种明显令人惊讶的行为是麦克斯韦方程组的直接后果。非常类似的评论适用于均匀介质中的高斯光束。因此，高斯光束进行无功功率，和他们的有功功率分布略有偏离他们的标准图片。对于用贝塞尔函数表示的自由空间模式，也有类似的结论。
英文摘要：
It was noticed in the past that, to avoid physical inconsistencies, in Marcatili's lossless tapers through-flowing waves must be drastically different from standing waves. First, we reconfirm this by means of numerical results based on an extended BPM algorithm. Next, we show that this apparently surprising behavior is a straightforward fallout of Maxwell's equations. Very similar remarks apply to Gaussian beams in a homogeneous medium. As a consequence, Gaussian beams are shown to carry reactive powers, and their active power distributions depart slightly from their standard pictures. Similar conclusions hold for free-space modes expressed in terms of Bessel functions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
