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  • 關于奧地利約翰開普勒大學孫立東副教授學術報告的通知

    發布時間:2019-07-25作者:瀏覽次數:144

    關于奧地利約翰開普勒大學孫立東副教授學術報告的通知

     

    報告題目Surface Sensitive Optical Spectroscopy and Microscopy(表面敏感光學光譜儀及顯微術)

    :孫立東博士

    報告時間2019730日(周二) 8:30

    報告地點:工科樓E1329

    報告人簡介

    Dr. Lidong Sun, Associate Professor at the Institute of Experimental Physics of Johannes Kepler University Linz in Austria. His research interest is focused on the fundamental understanding and the precise control of the growth of thin films and nano-structures on solid surface using real time in-situ optical spectroscopy and microscopy.

     

    孫立東博士為奧地利林茨約翰開普勒大學實驗物理研究所副教授,其研究興趣集中在利用實時原位光譜和顯微術實現對固體表面薄膜和納米結構生長的基礎理解和精確控制,在使用光學探針,低溫和可變溫度掃描隧道顯微鏡(STM)和熒光顯微鏡/激光掃描顯微鏡表征固體表面和薄膜、表面的物理吸附和化學吸附、吸附層的結構和動力學、低維系統中的相變以及納米結構表面的制備和表征等方面成果斐然。近年來,在Phys. Rev. Lett.,Appl. Phys. Lett.等期刊上發表50多篇高水平科研論文,并在國際會議宣讀論文40余次。

     

    報告內容簡介

    Differential optical spectroscopy represents a group of versatile techniques for probing surface and interface structure.  These techniques are surface sensitive, non-destructive, not restricted to vacuum conditions and therefore provide significant advantages over conventional surface analysis techniques.  Consequently, these methods are very suitable for the in-situ studies of surface processes occurring under various environmental conditions.

    In this talk, the measurement principle will be first introduced. The second part of the talk will be devoted to discussing their application in monitoring and precise control of the growth a nano-structures including metal clusters, organic thin films and 2D transition metal dichalcogenides.  Finally, the new application of the fluorescence microscopy as an in-situ probe for real time monitoring of the growth of organic thin films will also be presented.

    差分光學光譜儀是一組用于探測表面和界面結構的通用技術。這些技術是表面敏感的,非破壞性的,不限于真空條件,具有優于傳統表面分析技術的顯著特點。非常適合于對在各種環境條件下發生的表面過程的開展原位研究。

    在本報告中,將首先介紹差分光學光譜儀測量原理,而后將致力于討論該技術在監測和精確控制納米結構(包括金屬簇,有機薄膜和2D過渡金屬二硫化物)的應用。最后,還將介紹熒光顯微鏡作為原位探針實時監測有機薄膜的生長的新進展。

     

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