Confocal optical microscope for use with or without aperture plate for performing optical absorption measurements on sample with small absorption cross-section, has light source and optical resonator, which is adapted to receive sample , Vorrichtung und Verfahren zur resonator-verstärkten optischen Absorptionsmessung an Proben mit kleinem Absorptionswirkungsquerschnitt

Um ein konfokales Lichtmikroskop (100), geeignet zur Durchführung optischer Absorptionsmessungen an Proben (17) mit kleinem Absorptionswirkungsquerschnitt, umfassend einer Lichtquelle (14) zu schaffen, wird vorgeschlagen, einen optischen Resonator (10) in das konfokale Lichtmikroskop (100) zu integrieren.

The confocal optical microscope (100) has a light source (14) and an optical resonator (10), which is adapted to receive a sample (17) and acted upon by light. A confocal plane (F) of the optical microscope is located inside the optical resonator. The sample is arranged in the confocal plane. The resonator is formed as a grid resonator. An independent claim is included for a method for performing optical absorption measurements on a sample.