Sader, J. E.Hanay, SelimNeumann, A. P.Roukes, M. L.2019-02-212019-02-2120181530-6984http://hdl.handle.net/11693/49988The mass measurement of single molecules, in real time, is performed routinely using resonant nanomechanical devices. This approach models the molecules as point particles. A recent development now allows the spatial extent (and, indeed, image) of the adsorbate to be characterized using multimode measurements (Hanay, M. S., Nature Nanotechnol., 10, 2015, pp.EnglishFrequency-shift detectionInertial imagingMass spectrometryNanomechanical systemsArticle10.1021/acs.nanolett.7b0430110.1021/acs.nanolett.7b043011530-6992