摘要
Ahigh-efficiencytechniqueforopticalvortex(OV)generationisproposedanddemonstrated.Thetechniqueisbasedonliquidcrystalforkgratingswithspace-variantazimuthalorientations,whicharelocallycontrolledviapolarization-sensitivealignmentlayers.Thankstotheopticalrewritabilityofthealignmentagentandthedynamicimagegenerationofthedigitalmicro-mirrordevice,forkgratingscanbeinstantlyandarbitrarilyreconfigured.Correspondingopticalvorticescarryingarbitraryazimuthalandradialindicesaredemonstratedwithaconversionefficiencyof98.5%,exhibitingfeaturesofpolarizationcontrolandelectricalswitching.ThetechniquemaypaveabrightroadtowardOVgeneration,manipulation,anddetection.
出版日期
2015年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
