Deep-ultraviolet light excites surface plasmon for the enhancement of photoelectron emission
Deep-ultraviolet light excites surface plasmon for the enhancement of photoelectron emission
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DOI：
10.1063/1.3537823
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发表时间：
2011-01
影响因子：
3.2
通讯作者：
Yusuke Watanabe;W. Inami;Y. Kawata
中科院分区：
文献类型：
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作者：
Yusuke Watanabe;W. Inami;Y. Kawata
研究了深紫外光激发铝膜表面等离子体共振（SPR）。深紫外表面等离子体共振具有比可见光更高的能量，在增强金属表面光电子发射、生物样品自体荧光成像、高能光子激光消融等方面有着广泛的应用前景。我们证明了DUV-SPR的光电子发射增强，并分析了保护层，以避免铝表面的氧化，同时保持尽可能多的电场增强。在表面等离子体共振的激发下，铝表面的光电子发射增强了9倍。
We show deep ultraviolet (DUV) light excitation of surface plasmon resonance (SPR) (DUV-SPR) with aluminum (Al) film. DUV-SPR has higher energy than that of visible light opens many applications, such as enhancement of photoelectron emission from metal surface, autofluorescence imaging of biological specimens, and laser ablation with high energy photons. We demonstrated the enhancement of photoelectron emission by DUV-SPR and analyzed protection layer to avoid oxidation of aluminum surface with enhancement of electric field kept as much as possible. The photoelectron emission from the aluminum surface was enhanced nine times with the excitation of SPR.