The nanomanipulator

摘要: We have developed a virtual-reality interface to scanning tunneling microscope (STM); the resulting system is called Nanomanipulator. The user comprises stereoscopic color head-mounted display, force-feedback remote manipulator master station, and high-performance graphics computer. It provides illusion of surface floating in space front user. user's hand gestures are translated into commands that sent STM real time; returned video haptic signals allow see feel topography control timing location voltage pulses applied between tip probe sample under study. My thesis powerful effective an STM--allowing qualitatively different types experiments be performed. success our investigations using this demonstrates validity thesis. We used Nanomanipulator examine various surfaces perform modification experiments. This investigation has led new insight meaning certain features mechanisms by which change sample. These insights were direct results real-time visualization more interactive nature compared standard methods. The key it intuitive two-way instrument. Raw data from not format easily understood scientist, Etch-a-Sketch type controls required for positioning neither natural nor familiar acts as translator instrument allowing scientist concentrate on interacting with study rather than computer or itself. seeks put scientists surface, control, while experiment happening--thus turning remote, batch modifier real-time, user-guided modifier.