Optically-driven field emitter array based on plasmon resonance

研究了等离子体共振在电子场发射中的应用。研究了不同波长激光辐照下，电化学削尖钨针尖上金针尖的发射特性。在等离子体共振波长的照射下，电子束电流最大化，并证明了光学发射控制。这些研究阐明了等离子体共振场发射的机理，并获得了217的最大增强因子。基于此原理制作了场致发射体阵列。

Application of plasmon resonance to electron field emission has been studied. Emission characteristics of gold sharp tip formed on electrochemically-sharpened tungsten apex were investigated under laser irradiation at several wavelengths. Electron beam current was maximized under irradiation at the plasmon-resonant wavelength, and optically emission control was demonstrated. These study clarified the mechanism of plasmon-resonant field emission, and the maximum enhancement factor of 217 was achieved. Field emitter array based on this principle was fabricated.