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Updated: Jul 26, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

基于液晶螺旋相板的可重新配置的完美波束发生器

J Pereiro-García, M García-De-Blas, P De La Rosa

|November 29, 2023

概括

一种新的光学设置产生了各种可调节的拓电荷 (TC) 的完美束 (PVB),使用可重新配置的液晶螺旋相板 (LC SPP),没有移动部件.

科学领域:

光学和光子学在光学和光子学.
材料科学材料科学材料科学

背景情况:

完美的旋转束 (PVBs) 对于需要精确的光操纵的应用至关重要.
产生可控制拓电荷 (TC) 的PVB通常涉及复杂或重的光学系统.

研究的目的:

呈现一种可传输,可适应的光学设置,用于生成具有不同TC的各种PVB.
展示一个系统,避免使用移动部件用于光束生成.

主要方法:

使用可重新配置的液晶螺旋相板 (LC SPP) 与72个电极,使用直接激光写作 (DLW) 在ITO玻璃上制造.
整合了LC SPP与折射轴和融合折射镜头.
采用内部定制的电子设备来驱动LC SPP进行动态控制.

主要成果:

成功生成了36个明显的正和36个明显的负拓电荷 (TC) 的完美束 (PVB).
光学设置证明了无需机械元件的适应性和调性.
由于DLW制造,在LC SPP装置中实现了高填充系数.

结论:

拟议的光学设置为生成可调节的PVB提供了多功能和紧的解决方案.
使用可重新配置的LC SPP提供了一种可靠的方法来控制轨道角动量.
这项技术有可能用于先进的光学操纵和通信系统.

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Steady, Laminar Flow Between Parallel Plates

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Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.