attoCFM I
low temperature confocal microscope, free-beam optics
The attoCFM I has been developed to offer a maximum
amount of flexibility for a convenient adaption to a large
number of different quantum optics applications. This is
realized by an external optics head, positioned outside the
cryostat. Furthermore, the free-beam optical design allows
for completely independent adjustment of the excitation
and collection port. Therefore, applications such as Raman
spectroscopy become accessible by appropriately filtering
of the excitation and detection signals. The easy handling
opens up new possibilities in quantitative surface char-
acterization in the sub-micron range. The attoCFM I can
optionally be equipped with an interferometric encoder for
closed loop operation with 1 nm resolution, and an ultra
large range scanner with 125 µm scan range at 4 K.
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01 attoCFM I external optics head (see next page for details)
02 vacuum window
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03 microscope insert
04 superconducting magnet (optional)
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05 attoDRY1100 cryostat (optional)
06 attoFPSensor based closed loop sensors (optional)
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07 low temperature compatible, high-NA apochromatic objective
08 quick exchange sample holder with 8 electrical contacts
09 ultra-large range xyz scanner 125 μm x 125 μm x 15 μm @ 4 K (optional)
Schematic drawing of the low temperature attoCFM I
and the attoDRY1100 cryostat (optional)
10 xyz coarse positioners 5 mm x 5 mm x 5 mm
11 ultra stable titanium housing