Scanning Probe Microscopy—the Scanning Tunneling

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Scanning Probe Microscopythe Scanning Tunneling Microscope Scanning Probe Microscopythe Scanning Tunneling Microscope The best optical microscopes can see structures in the 200 400 nm range, at their limits of resolution. The STM can

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Scanning Probe Microscopy—the Scanning Tunneling Microscope<br>
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Scanning Probe Microscopy—the Scanning Tunneling Microscope
The best optical microscopes can see structures in the 200 – 400 nm range, at their limits of resolution.
The STM can “see” structures on the order of 0.1 nm [atoms!]—another SPM, the AFM—can distinguish things on the order of 100 nm [large molecules].<br>
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Optical microscopes are “diffraction limited”—the wavelength range of visible light (400-750 nm) sets the size of the smallest thing that can be imaged: ~ 400 nm. Scanning Probe Microscopy—the Scanning Tunneling Microscope
The best optical microscopes can see structures in the 200 – 400 nm range, at their limits of resolution.
The STM can “see” structures on the order of 0.1 nm [atoms!]—another SPM, the AFM—can distinguish things on the order of 100 nm [large molecules].<br>