本文關鍵詞： 陰極熒光 表面等離激元 亞波長 金屬納米結構　出處：《物理學報》2017年14期 　論文類型：期刊論文

【摘要】：表面等離激元以其獨特的光學性質(zhì)廣泛應用于納米尺度的局域電磁場增強、超高分辨成像及微弱光電探測.陰極熒光是電子與物質(zhì)相互作用而產(chǎn)生的光學響應,利用電子束激發(fā)金屬納米結構能夠實現(xiàn)局域等離激元共振,并在亞波長尺度實現(xiàn)對共振模式的調(diào)控,具有超高空間分辨的成像特點.陰極熒光探測通常結合掃描電子顯微鏡或透射電子顯微鏡而實現(xiàn),目前己被應用于表面等離激元的探測及共振模式的分析.本文從陰極熒光物理機理出發(fā),綜述了單一金屬納米結構和金屬耦合結構的等離激元共振模式陰極熒光研究進展,并總結了陰極熒光與角分辨、時間分辨以及電子能量損失譜等關鍵技術相結合的應用,進一步分析了其面臨的關鍵問題,最后展望了陰極熒光等離激元研究方向.
[Abstract]:Surface isoexcitators are widely used in nanoscale local electromagnetic field enhancement, ultra-high resolution imaging and weak photoelectric detection due to their unique optical properties. Cathode fluorescence is the optical response caused by the interaction between electrons and matter. Using electron beam to excite the metal nanostructures can realize the local isobaric resonance and control the resonance mode at the sub-wavelength scale. Cathode fluorescence detection is usually realized by combining scanning electron microscope (SEM) or transmission electron microscope (TEM). At present, it has been applied to the detection of surface isoexcitators and the analysis of resonance modes. In this paper, we proceed from the physical mechanism of cathodic fluorescence. In this paper, the research progress of single metal nanostructure and metal coupling structure in isoexciton resonant mode cathodoluminescence is reviewed, and the cathodic fluorescence and angular resolution are also summarized. With the application of time resolution and electron energy loss spectroscopy, the key problems are analyzed. Finally, the research direction of cathode fluorescence isopherons is prospected.
【作者單位】： 北京大學物理學院人工微結構和介觀物理國家重點實驗室;
【基金】：國家重點基礎研究發(fā)展計劃(批準號:2017YFA0205700,2015CB932403,2017YFA0206000) 國家自然科學基金(批準號:61422501,11674012,11374023,61176120,61378059,61521004) 北京市自然科學基金(批準號:L140007) 教育部全國優(yōu)秀博士學位論文專項基金(批準號:201420)資助的課題~~
【分類號】：O441;TB383.1
【正文快照】： 1引言 類似于光和物質(zhì)的相互作用,當電子入射到物質(zhì)表面時,其較T嫉哪芰靠梢越鎦駛繾蛹し⒌礁吣薌，

本文編號：1478300