{"title":"用液相光聚合和单步成型法制备聚二甲基硅氧烷微透镜","authors":"B. Aldalali, A. Kanhere, Hongrui Jiang","doi":"10.1109/OMEMS.2012.6318862","DOIUrl":null,"url":null,"abstract":"We report on polydimethlysiloxane (PDMS) microlenses fabricated from liquid-phase photopolymerization and a single molding step. The mold is fabricated by photopolymerizing a polyacrylamide (PAAm) pre-hydrogel flowed into an aperture array with a channel underneath. PAAm shrinks isotropically while pinned around the rim of the apertures to form lens molds due to hydrophobic-hydrophilic boundaries. The lenses are then transferred to PDMS by a singlestep molding. The microlenses can be fabricated in different sizes and into arrays without extensive control of fabrication parameters. As an example, we show characterization of fabricated microlenses with a diameter of 1 mm and calculated focal length of 2.83 mm. The surface roughness of the microlenses is on the order of 150nm.","PeriodicalId":347863,"journal":{"name":"2012 International Conference on Optical MEMS and Nanophotonics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Polydimethylsiloxane microlenses fabricated from liquid-phase photopolymerization and single molding step\",\"authors\":\"B. Aldalali, A. Kanhere, Hongrui Jiang\",\"doi\":\"10.1109/OMEMS.2012.6318862\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report on polydimethlysiloxane (PDMS) microlenses fabricated from liquid-phase photopolymerization and a single molding step. The mold is fabricated by photopolymerizing a polyacrylamide (PAAm) pre-hydrogel flowed into an aperture array with a channel underneath. PAAm shrinks isotropically while pinned around the rim of the apertures to form lens molds due to hydrophobic-hydrophilic boundaries. The lenses are then transferred to PDMS by a singlestep molding. The microlenses can be fabricated in different sizes and into arrays without extensive control of fabrication parameters. As an example, we show characterization of fabricated microlenses with a diameter of 1 mm and calculated focal length of 2.83 mm. The surface roughness of the microlenses is on the order of 150nm.\",\"PeriodicalId\":347863,\"journal\":{\"name\":\"2012 International Conference on Optical MEMS and Nanophotonics\",\"volume\":\"4 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-10-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 International Conference on Optical MEMS and Nanophotonics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/OMEMS.2012.6318862\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 International Conference on Optical MEMS and Nanophotonics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/OMEMS.2012.6318862","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Polydimethylsiloxane microlenses fabricated from liquid-phase photopolymerization and single molding step
We report on polydimethlysiloxane (PDMS) microlenses fabricated from liquid-phase photopolymerization and a single molding step. The mold is fabricated by photopolymerizing a polyacrylamide (PAAm) pre-hydrogel flowed into an aperture array with a channel underneath. PAAm shrinks isotropically while pinned around the rim of the apertures to form lens molds due to hydrophobic-hydrophilic boundaries. The lenses are then transferred to PDMS by a singlestep molding. The microlenses can be fabricated in different sizes and into arrays without extensive control of fabrication parameters. As an example, we show characterization of fabricated microlenses with a diameter of 1 mm and calculated focal length of 2.83 mm. The surface roughness of the microlenses is on the order of 150nm.
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