{"title":"非线性声表面波的光学探测","authors":"V. Kavalerov, N. Kasaya, M. Inoue, T. Fujii","doi":"10.1109/ULTSYM.1996.584124","DOIUrl":null,"url":null,"abstract":"A new type of laser probe of surface acoustic waves (SAW) is reported. The probe operation is based on knife-edge technique, while a pulsed laser is employed in order to sample the waveform of SAW. The spatial resolution of the probe is 1.3 /spl mu/m and its bandwidth is greater than 1 GHz. Nonlinear SAW on single crystal LiNbO/sub 3/ plates has been studied at the input frequency 200 MHz with the new method. It is shown that the initially sinusoidal wave breaks into a train of pulses, up to four per period. The observed spectrum of the wave included as many as 10 harmonics.","PeriodicalId":278111,"journal":{"name":"1996 IEEE Ultrasonics Symposium. Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Optical probing of nonlinear SAW waveform\",\"authors\":\"V. Kavalerov, N. Kasaya, M. Inoue, T. Fujii\",\"doi\":\"10.1109/ULTSYM.1996.584124\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new type of laser probe of surface acoustic waves (SAW) is reported. The probe operation is based on knife-edge technique, while a pulsed laser is employed in order to sample the waveform of SAW. The spatial resolution of the probe is 1.3 /spl mu/m and its bandwidth is greater than 1 GHz. Nonlinear SAW on single crystal LiNbO/sub 3/ plates has been studied at the input frequency 200 MHz with the new method. It is shown that the initially sinusoidal wave breaks into a train of pulses, up to four per period. The observed spectrum of the wave included as many as 10 harmonics.\",\"PeriodicalId\":278111,\"journal\":{\"name\":\"1996 IEEE Ultrasonics Symposium. Proceedings\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1996 IEEE Ultrasonics Symposium. Proceedings\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ULTSYM.1996.584124\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1996 IEEE Ultrasonics Symposium. Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1996.584124","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A new type of laser probe of surface acoustic waves (SAW) is reported. The probe operation is based on knife-edge technique, while a pulsed laser is employed in order to sample the waveform of SAW. The spatial resolution of the probe is 1.3 /spl mu/m and its bandwidth is greater than 1 GHz. Nonlinear SAW on single crystal LiNbO/sub 3/ plates has been studied at the input frequency 200 MHz with the new method. It is shown that the initially sinusoidal wave breaks into a train of pulses, up to four per period. The observed spectrum of the wave included as many as 10 harmonics.