Abstract
The influence of confocal pinhole size on the lateral imaging resolution in magnetooptic scanning laser microscopes (MO-SLM) is investigated both theoretically and experimentally. Various scanning microscope configurations are studied theoretically using a scalar diffraction, transfer function model. A surprising theoretical prediction is that for the commonly used differential detector magnetooptic (MO) microscope, no improvement in lateral resolution is achieved by the use of a confocal imaging arrangement. A series of experimental tests measuring the MO step response for a range of confocal pinhole sizes has been carried out and the results appear to verify the theoretical predictions.
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