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Laser-Assisted Nanofabrication in the Scanning Electron Microscope

机译:扫描电子显微镜中的激光辅助纳米制剂

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A prototype apparatus was developed to deliver up to ~300 kW/cm2 of cw or pulsed near IR light to a sample inside a scanning electron microscope (SEM) or focused ion beam (FIB) instrument. Transient heating of localized areas around the electron or ion beam can be performed with fine control of power and pulse parameters, down to sub-microsecond durations. In conjunction with a gas injection system, electron beam induced deposition (EBID) of enhanced purity Pt and Au structures was demonstrated. Dynamics of pulsed laser induced solid-state dewetting of Ni and Au were also observed in real time in a SEM/FIB, which may lead to improved understanding and manipulation of self-assembled nanostructures.
机译:开发了原型装置以将高达〜300kW / cm2的CW或靠近IR光脉冲传递到扫描电子显微镜(SEM)或聚焦离子束(FIB)仪器内的样品。可以通过对电力和脉冲参数的微量控制来执行电子或离子束周围的局部区域的瞬态加热,下降到亚微秒持续时间。结合气体喷射系统,对增强纯度Pt和Au结构的电子束感应沉积(Ebid)进行了说明。在SEM / FIB中也可以实时观察脉冲激光诱导的Ni和Au的固态脱模的动态,这可能导致改善自组装纳米结构的理解和操纵。

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