论文标题
演示用于微流制造的合作领板和Fraunhofer衍射
Demonstration of synergic Fresnel and Fraunhofer diffraction for application to micrograting fabrication
论文作者
论文摘要
衍射是由于其波浪性质而在边缘的光的表现。众所周知的衍射现象是菲涅耳和Fraunhofer，他们单独发现多种应用。但是，没有研究和理解两种现象的协同作用，这对于理解复合光学仪器很重要。该研究研究并证明了菲涅耳和弗劳恩霍夫衍射的协同模式。在模拟和实验结果中，组合衍射导致的模式类似于Hermite-Gaussian束强度分布。此外，组合现象是在斑点光刻中实现的，以制造比简单的斑点衍射光栅模式更好的大面积微光栅模式。这项工作可能有助于更深入地了解光学仪器中的复杂衍射，并为微观光栅的稳健制造提供了道路。
Diffraction is a manifestation of light at edge due to its wavelike nature. The well-known diffraction phenomena are Fresnel and Fraunhofer, they find variety of applications individually. But the synergy of two phenomena is not studied and understood, which is important to understand the compound optical instruments. This research studies and demonstrates the synergic patterns of Fresnel and Fraunhofer diffractions. The combined diffraction resulted in the patterns similar to Hermite-Gaussian Beam intensity distribution in both simulated and experimental results. Further, the combined phenomena is implemented in speckle lithography to fabricate wide area micro grating patterns which are better than simple speckle diffraction grating patterns. This work may contribute to the deeper understanding of complex diffraction in optical instruments and also shows the way for robust fabrication of micro gratings.
