论文标题
近场调查的强大无尖端定位装置：按和滚动扫描（Proscan）
A robust tip-less positioning device for near-field investigations: Press and Roll Scan (PROscan)
论文作者
论文摘要
扫描探针显微镜在样品表面的附近扫描并操纵尖端。用于稳定尖端和样品之间分离的反馈机制的有限带宽使脆弱的纳米尖端非常容易受到机械不稳定性的影响。我们提出，演示和表征一种新的替代设备，基于对第二个基材的薄基板的膨胀并互相滚动。我们通过将金纳米颗粒和半导体量子点放置在两个相对的底物上，并以纳米精度定位以提高荧光强度和发射速率来展示该方法的功能。我们在一个多小时内表现出系统的被动机械稳定性。这项工作中提出的设计概念在其他各种情况下都有希望，在其他各种情况下，必须将纳米镜面特征放置并彼此接触。
Scanning probe microscopes scan and manipulate a sharp tip in the immediate vicinity of a sample surface. The limited bandwidth of the feedback mechanism used for stabilizing the separation between the tip and the sample makes the fragile nanoscopic tip very susceptible to mechanical instabilities. We propose, demonstrate and characterize a new alternative device based on bulging a thin substrate against a second substrate and rolling them with respect each other. We showcase the power of this method by placing gold nanoparticles and semiconductor quantum dots on the two opposite substrates and positioning them with nanometer precision to enhance the fluorescence intensity and emission rate. We exhibit the passive mechanical stability of the system over more than one hour. The design concept presented in this work holds promise in a variety of other contexts, where nanoscopic features have to be positioned and kept near contact with each other.
