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機械學院學術報告——自適應光學波前改正器及相關研究

發布日期:2019-07-21 作者:機械工程與力學學院 文章來源:  責任編輯: 瀏覽量:

報告時間:8月3日 上午9:00
報告地點:繡山工程樓208室
報告人:王海仁
摘要:We have proposed a discrete-layout bimorph piezoelectric deformable mirror (DBPDM) and developed its realistic electromechanical model. Compared with the conventional piezoelectric deformable mirror (CPDM) and the bimorph piezoelectric deformable mirror (BPDM), the DBPDM has both a larger stroke and a higher resonance frequency by integrating the strengths of the CPDM and the BPDM. An elastic mode method of deformable mirror has beenproposed to decompose arbitrary wave-front errors of adaptive optics system. The elastic modes are derived with an analytical method of linear piezoelectricity based on a bimorph piezoelectric deformable mirror (BPDM), and the three-dimensional formulas of elastic modes are presented. A comparative study for elastic mode and Zernike polynomials is presented in the numerical analysis. The results have demonstrated that the elastic mode method can be not only used instead of Zernike polynomials, but also more effective to decompose arbitrary wave-front errors of a deformable mirror.

個人簡介:

王海仁,工學博士,中科院紫金山天文臺副研究員,中科院青年創新促進會會員(類似教育部新世紀優秀人才),美國加州理工學院訪問者。從事亞毫米波天線/光學望遠鏡主體結構設計、主動光學/自適應光學技術等方向的研究。現任我國大視場光學巡天望遠鏡(WFST)核心系統的負責人,以第一作者或通訊作者在本領域發表的SCI論文17篇,包括TOP期刊J. Astron. Telesc. Inst. Sys. 3篇,Opt. Express2篇等。

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