{"title":"双波混频空间光调制器中的图像退化","authors":"G. Notni, R. Kowarschik","doi":"10.1364/pmed.1991.mb7","DOIUrl":null,"url":null,"abstract":"Optical real-time image processing by spatial light modulators (SLM’s) that utilize photorefractive crystals has attracted much attention /1/. The two-wave mixing SLM is based on the selective spatial erasure of the uniform phase volume hologram created by the two plane coherent beams using an incoherent image bearing beam Iinc(r→) resulting in an additional spatial modulation of the refractive index distribution I1(r→) (commonly with a greater spatial period then the grating period of the hologram). The parameters of these Bragg-type SLM’s are strongly determined by the diffraction properties of the nonuniform volume gratings and are analyzed here by means of the two-wave mixing coupled-wave formalism in it’s two-dimensional description /2/.","PeriodicalId":355924,"journal":{"name":"Photorefractive Materials, Effects, and Devices","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1992-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Image-degradation in a two-wave mixing spatial-light modulator\",\"authors\":\"G. Notni, R. Kowarschik\",\"doi\":\"10.1364/pmed.1991.mb7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Optical real-time image processing by spatial light modulators (SLM’s) that utilize photorefractive crystals has attracted much attention /1/. The two-wave mixing SLM is based on the selective spatial erasure of the uniform phase volume hologram created by the two plane coherent beams using an incoherent image bearing beam Iinc(r→) resulting in an additional spatial modulation of the refractive index distribution I1(r→) (commonly with a greater spatial period then the grating period of the hologram). The parameters of these Bragg-type SLM’s are strongly determined by the diffraction properties of the nonuniform volume gratings and are analyzed here by means of the two-wave mixing coupled-wave formalism in it’s two-dimensional description /2/.\",\"PeriodicalId\":355924,\"journal\":{\"name\":\"Photorefractive Materials, Effects, and Devices\",\"volume\":\"51 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-05-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Photorefractive Materials, Effects, and Devices\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1364/pmed.1991.mb7\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Photorefractive Materials, Effects, and Devices","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1364/pmed.1991.mb7","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Image-degradation in a two-wave mixing spatial-light modulator
Optical real-time image processing by spatial light modulators (SLM’s) that utilize photorefractive crystals has attracted much attention /1/. The two-wave mixing SLM is based on the selective spatial erasure of the uniform phase volume hologram created by the two plane coherent beams using an incoherent image bearing beam Iinc(r→) resulting in an additional spatial modulation of the refractive index distribution I1(r→) (commonly with a greater spatial period then the grating period of the hologram). The parameters of these Bragg-type SLM’s are strongly determined by the diffraction properties of the nonuniform volume gratings and are analyzed here by means of the two-wave mixing coupled-wave formalism in it’s two-dimensional description /2/.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
