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Theoretical study of micro-structure fabrication by multi-beam laser interference lithography with different polarization combinations
Modern Physics Letters B  (IF1.668),  Pub Date : 2021-09-01, DOI: 10.1142/s0217984921504595
Xiangxian Wang, Tianxu Jia, Jiankai Zhu, Yingwen Su, Liping Zhang, Hua Yang, Zao Yi, Yunping Qi

In this study, we systematically and comprehensively investigated the influence of polarization angle on the fabrication of micro-structures by multi-beam laser interference lithography. Using theoretical analysis and simulation, we studied the effect of different polarization combinations, i.e. transverse electric (TE) and transverse magnetic (TM) polarization combinations, on the characteristics of the micro-structures fabricated by three-, four-, and six-beam laser interference lithography. We successfully obtained micro-structures with different periodic patterns such as honeycomb dots, quasi-elliptic dots, different square dots, and quasi-triangular dots. The simulation results illustrate that polarization affects the formation of interference patterns, pattern contrasts, and periods. The methods discussed herein are simple, low cost, and allow excellent control over structural parameters, and hence are useful for the micro-structure manufacturing industry.