E. Afsharipour, Ramin Soltanzadeh, Byoungyoul Park, D. Chrusch, C. Shafai
{"title":"Low-power three-degree-of-freedom Lorentz force microelectromechanical system mirror for optical applications","authors":"E. Afsharipour, Ramin Soltanzadeh, Byoungyoul Park, D. Chrusch, C. Shafai","doi":"10.1117/1.JMM.18.1.015001","DOIUrl":null,"url":null,"abstract":"Abstract. A low-power three-degree-of-freedom scanning micromirror is presented. The 2- × 2-mm mirror is a gimbaless structure, directly supported by single-crystal microsprings. It is actuated by Lorentz force and is able to tilt about two axes and has linear motion in a third-axis. The transient and frequency responses of the micromirror are analyzed. The Lagrange’s equations of motions describing the dynamic behavior of the system are presented and show a good agreement with the experimental results. The fabricated microelectromechanical system mirror demonstrates a tilt angle of 22.8 deg at 247.5 Hz about y-axis, and 13.3 deg at 292.7 Hz about x-axis, in a 0.1 T magnetic field and 20-mA current on the mirror. Power consumption is 2.6 mW of power in tilting motions in resonant operation. With a total DC-drive current of 110 mA, 232-μm linear motion is achieved.","PeriodicalId":16522,"journal":{"name":"Journal of Micro/Nanolithography, MEMS, and MOEMS","volume":"117 1","pages":"015001 - 015001"},"PeriodicalIF":1.5000,"publicationDate":"2019-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Micro/Nanolithography, MEMS, and MOEMS","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1117/1.JMM.18.1.015001","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 1
Abstract
Abstract. A low-power three-degree-of-freedom scanning micromirror is presented. The 2- × 2-mm mirror is a gimbaless structure, directly supported by single-crystal microsprings. It is actuated by Lorentz force and is able to tilt about two axes and has linear motion in a third-axis. The transient and frequency responses of the micromirror are analyzed. The Lagrange’s equations of motions describing the dynamic behavior of the system are presented and show a good agreement with the experimental results. The fabricated microelectromechanical system mirror demonstrates a tilt angle of 22.8 deg at 247.5 Hz about y-axis, and 13.3 deg at 292.7 Hz about x-axis, in a 0.1 T magnetic field and 20-mA current on the mirror. Power consumption is 2.6 mW of power in tilting motions in resonant operation. With a total DC-drive current of 110 mA, 232-μm linear motion is achieved.
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