PMID- 37133129
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20230503
LR  - 20230503
IS  - 1539-4522 (Electronic)
IS  - 1559-128X (Linking)
VI  - 62
IP  - 11
DP  - 2023 Apr 10
TI  - Equal-intensity beam splitter realization by wire grid polarizers for passive 
      laser speckle reduction.
PG  - 2862-2868
LID - 10.1364/AO.484683 [doi]
AB  - 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.
FAU - Fan, Zhaoxia
AU  - Fan Z
FAU - Liu, Jinjia
AU  - Liu J
FAU - Ma, Yifei
AU  - Ma Y
FAU - Wang, Mei
AU  - Wang M
FAU - Jia, Suotang
AU  - Jia S
FAU - Chen, Xuyuan
AU  - Chen X
FAU - Tong, Zhaomin
AU  - Tong Z
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Appl Opt
JT  - Applied optics
JID - 0247660
SB  - IM
EDAT- 2023/05/03 12:42
MHDA- 2023/05/03 12:43
CRDT- 2023/05/03 08:25
PHST- 2023/05/03 12:43 [medline]
PHST- 2023/05/03 12:42 [pubmed]
PHST- 2023/05/03 08:25 [entrez]
AID - 528791 [pii]
AID - 10.1364/AO.484683 [doi]
PST - ppublish
SO  - Appl Opt. 2023 Apr 10;62(11):2862-2868. doi: 10.1364/AO.484683.