Sheppard C J, Kompfner R
Appl Opt. 1978 Sep 15;17(18):2879-82. doi: 10.1364/AO.17.002879.
The enhancement of nonlinear interactions in the scanning optical microscope by placing the object in a resonant cavity is discussed. The effect of resonance of the primary radiation is also considered. Practical geometries for the resonant scanning optical microscope are given.