Sarfus
Optical quantitative imaging technique / From Wikipedia, the free encyclopedia
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Sarfus is an optical quantitative imaging technique based on the association of:
- an upright or inverted optical microscope in crossed polarization configuration and
- specific supporting plates – called surfs – on which the sample to observe is deposited.
This article needs additional citations for verification. (February 2024) |
Sarfus visualization is based on the perfect control of the reflection properties of polarized light on a surface, which leads to an increase in the axial sensitivity of optical microscope by a factor of around 100 without reducing its lateral resolution. Thus this new technique increases the sensitivity of standard optical microscope to a point that it becomes possible to directly visualize thin films (down to 0.3 micrometer) and isolated nano-objects in real-time, be it in air or in water.