Yang Xiulun, Cai Luzhong, Liu Qing
Department of Optics, Shandong University, Jinan, China.
Appl Opt. 2002 Nov 10;41(32):6894-900. doi: 10.1364/ao.41.006894.
A systematic and comprehensive analysis of the interference of four umbrellalike beams (lFUB) is provided based on the reciprocal space theory. The concept of pattern contrast is extended to the case of the IFUB, and it is indicated that a uniform contrast for all the interference terms can be obtained by properly choosing the beam ratio and the polarization of each beam. Different polarization combinations, including linear light and linear light, circular light and circular light, and linear light and circular light, have been discussed for the purpose of maximum uniform contrast. It is shown that the use of circular light may generally improve the uniform contrast. This study may lay a theoretical foundation for holographic fabrication of three-dimensional (3D) periodic microstructures, such as simple cubic, body-centered cubic, face-centered cubic, or trigonal lattice.
基于倒易空间理论，对四束类伞形光束（lFUB）的干涉进行了系统而全面的分析。将图案对比度的概念扩展到了IFUB的情况，并表明通过适当选择光束比和每束光的偏振，可以获得所有干涉项的均匀对比度。为了实现最大均匀对比度，讨论了不同的偏振组合，包括线偏振光与线偏振光、圆偏振光与圆偏振光以及线偏振光与圆偏振光。结果表明，使用圆偏振光通常可以提高均匀对比度。该研究可为三维（3D）周期性微结构（如简单立方、体心立方、面心立方或三角晶格）的全息制造奠定理论基础。
