Cypher SPM
User Guide
mW) accordingly.
3. Ensure high accuracy blue spot positioning.
l
In some cases, the locating pins may have some fric-
tion that prevents proper indexing of the filter cube,
for example, if some dust gets into the indexing
holes. This may lead to a laser spot positioning error
of several tens of microns.
l
To ensure high accuracy positioning of the blue spot
between changing filter cubes, apply a small force
with your finger onto the filter cube after installation.
l
As shown to the right, the force should be slightly
upwards to make sure the filter cube indexes prop-
erly.
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16 blueDrive photothermal excitation
