A. Ragni, G. Sciortino, M. Sampietro, G. Ferrari, A. Cadena, F. Vernuccio, G. Cerullo, D. Polli
{"title":"宽带相干拉曼成像的高速低噪声多通道系统","authors":"A. Ragni, G. Sciortino, M. Sampietro, G. Ferrari, A. Cadena, F. Vernuccio, G. Cerullo, D. Polli","doi":"10.1109/newcas49341.2020.9159786","DOIUrl":null,"url":null,"abstract":"Broadband coherent Raman is a non-invasive and non-destructive spectroscopic technique with growing applications in the analysis of molecules and biological compounds. This paper presents the first 32-ch modular platform for highspeed Broadband Raman Imaging, able to simultaneously acquire and process 32 wavelengths of the spectrum with a multichannel pseudo-differential lock-in structure for the compensation of the excess noise given by the laser source. The system is based on a custom integrated CMOS front-end, specifically designed for Broadband Raman applications, and a Xilinx Artix-7 FPGA for the parallel acquisition and real-time data elaboration. Experimental results show that the system is able to reach the shot noise limit and acquire a Raman image with a pixel dwell time of 100μs.","PeriodicalId":135163,"journal":{"name":"2020 18th IEEE International New Circuits and Systems Conference (NEWCAS)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"High-Speed and Low-Noise Multichannel System for Broadband Coherent Raman Imaging\",\"authors\":\"A. Ragni, G. Sciortino, M. Sampietro, G. Ferrari, A. Cadena, F. Vernuccio, G. Cerullo, D. Polli\",\"doi\":\"10.1109/newcas49341.2020.9159786\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Broadband coherent Raman is a non-invasive and non-destructive spectroscopic technique with growing applications in the analysis of molecules and biological compounds. This paper presents the first 32-ch modular platform for highspeed Broadband Raman Imaging, able to simultaneously acquire and process 32 wavelengths of the spectrum with a multichannel pseudo-differential lock-in structure for the compensation of the excess noise given by the laser source. The system is based on a custom integrated CMOS front-end, specifically designed for Broadband Raman applications, and a Xilinx Artix-7 FPGA for the parallel acquisition and real-time data elaboration. Experimental results show that the system is able to reach the shot noise limit and acquire a Raman image with a pixel dwell time of 100μs.\",\"PeriodicalId\":135163,\"journal\":{\"name\":\"2020 18th IEEE International New Circuits and Systems Conference (NEWCAS)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 18th IEEE International New Circuits and Systems Conference (NEWCAS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/newcas49341.2020.9159786\",\"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 18th IEEE International New Circuits and Systems Conference (NEWCAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/newcas49341.2020.9159786","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
High-Speed and Low-Noise Multichannel System for Broadband Coherent Raman Imaging
Broadband coherent Raman is a non-invasive and non-destructive spectroscopic technique with growing applications in the analysis of molecules and biological compounds. This paper presents the first 32-ch modular platform for highspeed Broadband Raman Imaging, able to simultaneously acquire and process 32 wavelengths of the spectrum with a multichannel pseudo-differential lock-in structure for the compensation of the excess noise given by the laser source. The system is based on a custom integrated CMOS front-end, specifically designed for Broadband Raman applications, and a Xilinx Artix-7 FPGA for the parallel acquisition and real-time data elaboration. Experimental results show that the system is able to reach the shot noise limit and acquire a Raman image with a pixel dwell time of 100μs.