{"title":"多束太赫兹激光自混合干涉及其在薄膜厚度测量中的应用","authors":"W. Chu, Yuanyuan Li, Yan Xie, N. Yang","doi":"10.1109/CSRSWTC50769.2020.9372650","DOIUrl":null,"url":null,"abstract":"In this work, we study the multi-beam self-mixing interference in a terahertz quantum cascade lasers. The simulations demonstrate that both the amplitude and the phase of the multi-beam self-mixing signals depend on the displacement of the targets. Then the experiment demonstrates the possibility of film thickness measurement by multi-beam self-mixing. These results give the theoretical and experimental foundations to develop terahertz tomography based on multi-beam self-mixing interference of THz lasers.","PeriodicalId":207010,"journal":{"name":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Multiple-Beam Terahertz Laser Self-Mixing Interference and Its Application in Film Thickness Measurements\",\"authors\":\"W. Chu, Yuanyuan Li, Yan Xie, N. Yang\",\"doi\":\"10.1109/CSRSWTC50769.2020.9372650\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this work, we study the multi-beam self-mixing interference in a terahertz quantum cascade lasers. The simulations demonstrate that both the amplitude and the phase of the multi-beam self-mixing signals depend on the displacement of the targets. Then the experiment demonstrates the possibility of film thickness measurement by multi-beam self-mixing. These results give the theoretical and experimental foundations to develop terahertz tomography based on multi-beam self-mixing interference of THz lasers.\",\"PeriodicalId\":207010,\"journal\":{\"name\":\"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)\",\"volume\":\"13 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-12-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CSRSWTC50769.2020.9372650\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CSRSWTC50769.2020.9372650","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Multiple-Beam Terahertz Laser Self-Mixing Interference and Its Application in Film Thickness Measurements
In this work, we study the multi-beam self-mixing interference in a terahertz quantum cascade lasers. The simulations demonstrate that both the amplitude and the phase of the multi-beam self-mixing signals depend on the displacement of the targets. Then the experiment demonstrates the possibility of film thickness measurement by multi-beam self-mixing. These results give the theoretical and experimental foundations to develop terahertz tomography based on multi-beam self-mixing interference of THz lasers.
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