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Opt Lett. 1994 Jun 1;19(11):780-2.

Breaking the diffraction resolution limit by stimulated emission: stimulated-emission-depletion fluorescence microscopy.


We propose a new type of scanning fluorescence microscope capable of resolving 35 nm in the far field. We overcome the diffraction resolution limit by employing stimulated emission to inhibit the fluorescence process in the outer regions of the excitation point-spread function. In contrast to near-field scanning optical microscopy, this method can produce three-dimensional images of translucent specimens.


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