A microscope with a first and a second illumination light beam for
illuminating a sample, wherein the first and/or the second illumination
light beam evanescently illuminates the sample. For the purpose of CARS
testing, the first illumination light beam can be a pump light beam, and
the second illumination light beam can be a Stokes light beam. To
increase resolution, the first illumination light beam can be an
excitation light beam, and the second illumination light beam can be a
stimulation light beam.