光学
偏振器
斑点图案
分束器
激光器
材料科学
连贯性(哲学赌博策略)
散斑噪声
还原(数学)
梁(结构)
双折射
物理
几何学
数学
量子力学
作者
Zhaoxia Fan,Jinjia Liu,Yifei Ma,Mei Wang,Suotang Jia,Xuyuan Chen,Zhaomin Tong
出处
期刊:Applied Optics
[Optica Publishing Group]
日期:2023-03-21
卷期号:62 (11): 2862-2862
摘要
A method to realize an equal-intensity beam splitter (EIBS) using wire grid polarizers (WGPs) is proposed. The EIBS consists of WGPs with predetermined orientations and high-reflectivity mirrors. We demonstrated the generation of three laser sub-beams (LSBs) with equivalent intensities using EIBS. The three LSBs were incoherent by introducing optical path differences larger than the laser coherence length. The LSBs were used to reduce speckle passively, where the objective speckle contrast was reduced from 0.82 to 0.5 when all three LSBs were used. The feasibility of EIBS in speckle reduction was studied using a simplified laser projection system. The structure of the EIBS implemented by WGPs is simpler than EIBSs obtained by other methods.
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