论文标题
通过光束塑形对复发波的连贯控制
Coherent Control of Evanescent Waves via Beam Shaping
论文作者
论文摘要
evaneScent的波是许多技术的核心，例如超过衍射极限和等离子设备的近场成像。沮丧的总内反射（FTIR）是一种通常用于研究逃生波的实验方法。在本文中，我们用马赫德尔干涉仪塑造了FTIR过程的入射光束，并测量光线传感器，同时改变路径长度差异和干涉能见度。我们的结果表明，透射率随路径长度差而变化，因此变化了形状梁的强度分布。实验和有限元方法仿真产生同意的结果。我们还通过模拟表明，可以通过其他光束塑造方法来控制透射率。我们的工作提供了对FTIR过程的连贯控制的概念概念证明，这可能会导致在逃生的波浪和FTIR的许多应用中的进步。
Evanescent waves are central to many technologies such as near-field imaging that beats the diffraction limit and plasmonic devices. Frustrated total internal reflection (FTIR) is an experimental method commonly used to study evanescent waves. In this paper, we shape the incident beam of the FTIR process with a Mach-Zehnder interferometer and measure light transmittance while varying the path length difference and interferometric visibility. Our results show that the transmittance varies with the path length difference and, thus, the intensity distribution of the shaped beam. Experiment and finite element method simulation produce results that agree. We also show, through simulations, that the transmittance can be controlled via other methods of beam shaping. Our work provides a proof-of-concept demonstration of the coherent control of the FTIR process, which could lead to advancements in numerous applications of evanescent waves and FTIR.
