【摘 要】
：
The strong spatial confinement of a nanocavity plasmonic field has made it possible to visualize the inner structure of a single molecule and even to distinguis
【机 构】
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Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center o
论文部分内容阅读
The strong spatial confinement of a nanocavity plasmonic field has made it possible to visualize the inner structure of a single molecule and even to distinguish its vibrational modes in real space.With such ever-improved spatial resolution,it is anticipated that full vibrational imaging of a molecule could be achieved to reveal molecular structural details.Here we demonstrate full Raman images of individual vibrational modes at the (a)ngstr(o)m level for a single Mg-porphine molecule,revealing distinct characteristics of each vibrational mode in real space.Furthermore,by exploiting the underlying interference effect and Raman fingerprint database,we propose a new methodology for structural determination,which we have called ‘scanning Raman picoscopy’,to show how such ultrahigh-resolution spectromicroscopic vibrational images can be used to visually assemble the chemical structure of a single molecule through a simple Lego-like building process.
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