{"title":"毫米波光栅光谱仪的模式滤波","authors":"D. Boyd","doi":"10.1109/irmm.1983.9126338","DOIUrl":null,"url":null,"abstract":"Grating spectrometers employed as electron cyclotron emission diagnostic systems use as entrance and exit slits pieces of rectangular or circular waveguide with a scale size of 5 → 10λ. Since only the extraordinary mode polarization of the radiation is wanted, a wire grid polarizer is used to reject the other radiation. A combination of polarizer, finite size of slit, finite grating size, and limited etendue of the instrument severely limits the number of modes of the radiation field transmitted through the instrument.","PeriodicalId":314918,"journal":{"name":"1983 Eighth International Conference on Infrared and Millimeter Waves","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Mode filtering in grating spectrometers at millimeter wavelengths\",\"authors\":\"D. Boyd\",\"doi\":\"10.1109/irmm.1983.9126338\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Grating spectrometers employed as electron cyclotron emission diagnostic systems use as entrance and exit slits pieces of rectangular or circular waveguide with a scale size of 5 → 10λ. Since only the extraordinary mode polarization of the radiation is wanted, a wire grid polarizer is used to reject the other radiation. A combination of polarizer, finite size of slit, finite grating size, and limited etendue of the instrument severely limits the number of modes of the radiation field transmitted through the instrument.\",\"PeriodicalId\":314918,\"journal\":{\"name\":\"1983 Eighth International Conference on Infrared and Millimeter Waves\",\"volume\":\"29 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1983-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1983 Eighth International Conference on Infrared and Millimeter Waves\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/irmm.1983.9126338\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1983 Eighth International Conference on Infrared and Millimeter Waves","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/irmm.1983.9126338","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Mode filtering in grating spectrometers at millimeter wavelengths
Grating spectrometers employed as electron cyclotron emission diagnostic systems use as entrance and exit slits pieces of rectangular or circular waveguide with a scale size of 5 → 10λ. Since only the extraordinary mode polarization of the radiation is wanted, a wire grid polarizer is used to reject the other radiation. A combination of polarizer, finite size of slit, finite grating size, and limited etendue of the instrument severely limits the number of modes of the radiation field transmitted through the instrument.
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