微尺度非傍轴光学空心光束的观测
Observation of microscale nonparaxial optical bottle beams
摘要：
基于旋转焦散面的产生，预测并实验观察了三维微尺度非傍轴空心光束。这种瓶形梁在周围表面和有效空隙内部之间表现出高对比度。通过焦散工程，我们可以精确地控制高强度表面的功能形式，以实现纵向和横向尺寸相同数量级的微尺度瓶梁。虽然，在一般情况下，在输入平面上的相位分布可以计算数值，我们发现封闭形式的表达式与各种类型的表面在真实的和傅立叶空间中的瓶光束。
英文摘要：
We predict and experimentally observe three-dimensional microscale nonparaxial optical bottle beams based on the generation of a caustic surface under revolution. Such bottle beams exhibit high contrast between the surrounding surface and the effectively void interior. Via caustic engineering we can precisely control the functional form of the high intensity surface to achieve microscale bottle beams with longitudinal and transverse dimensions of the same order of magnitude. Although, in general, the phase profile at the input plane can be computed numerically, we find closed form expressions for bottle beams with various type of surfaces both in real and in the Fourier space.
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。
