光学精密工程2026，Vol.34Issue(1)：53-60,8.DOI:10.37188/OPE.20263401.0053
体散射片制备及静态激光散斑抑制
Fabrication of volume scattering diffuser and static laser speckle suppression
摘要
Abstract
To mitigate speckle arising from the high coherence of lasers in display applications,a static speckle-suppression approach is proposed based on a volume scattering diffuser(VSD)formed from a mix-ture of polystyrene(PS)microspheres and polydimethylsiloxane.PS microspheres with an average diame-ter of 600-700 nm were synthesized via soap-free emulsion polymerization,and VSDs with varying thick-nesses were fabricated by spin coating.The scattering capability of the VSD was enhanced with increasing thickness as the spin-coating speed decreased from 1 300 r/min to 600 r/min,and the scattering angle in-creased from 44° to 100°.In an optical test system,thicker VSDs more effectively reduced the temporal and spatial coherence of the laser,lowering the speckle contrast to 0.35.This work demonstrates an exter-nal-driver-free,noiseless,and high-efficiency static technique for laser speckle suppression in laser dis-plays,with significant application potential.关键词
激光显示/激光散斑/体散射片/静态散斑抑制Key words
laser display/laser speckle/volume scattering diffuser/static speckle suppression分类
数理科学引用本文复制引用
吴其洲,贾蓓,陈亚琳,燕宇翔,马维光,仝召民..体散射片制备及静态激光散斑抑制[J].光学精密工程,2026,34(1):53-60,8.基金项目
国家科技重大专项资助项目(No.2025ZD0616600) （No.2025ZD0616600）
长江学者和创新团队发展计划资助项目(No.IRT_17R70) （No.IRT_17R70）
高等学校学科创新引智计划(111计划)资助项目(No.D18001) （111计划）
山西省留学回国人员科技活动择优资助项目(No.20210038) （No.20210038）
