attoCFM IV
attoMICROSCOPY
Sophisticated Tools for Science
attoCFM IV
low temperature confocal microscope, optimized for free-beam transmission experiments
Technical Specifications
General Specifications
type of instrument
confocal microscope for transmission experiments with one free-beam and one fiber
based channel
sensor head specifics
one channel with unique low temperature compatible achromatic objectives with
high numerical aperture, optimized for different wavelength ranges, and
Confocal Unit
configuration
compact and modular design, two or more optical channels
standard configuration: 1 excitation channel,1 detection channel
key benefits
quick and reliable alignment of each channel, steering mirror for the combined
beams exceptional long-term stability
quick-exchange of optical components
beamsplitters, filter mounts for up to 4 filters/ polarizers (1" diameter), optional
piezoelectric rotator with filter mount
pinhole configuration
two pinholes (fiber apertures),
different illumination and collection wavelength possible
pinhole size
dependent on fibers, typically 3 .. 9 µm mode field diameter
LT- compatible objective
LT-APO/VIS, LT-APO/VISIR, LT-APO/NIR
(see accessory section for more information)
inspection unit
sample imaging with large field of view: ~75 µm (attoDRY), ~56 µm (attoLIQUID)
Illumination
excitation wavelength range
free-beam channel: 400 .. 1000 nm
default: 650 nm (others on request)
fiber channel: limited to wavelength range of single mode fiber
default: 650 nm
illumination port specification
free-beam configuration or FC/ APC-connector for single mode fibers
Detection
detection mode
e.g. transmission, reflection, luminescence, flourescence, Raman (optional)
detection wavelength range
free-beam channel: 400 .. 1000 nm
default: 650 nm (others on request)
fiber channel: limited to wavelength range of single mode fiber
default: 650 nm
detection port specification
free-beam configuration or FC/ APC-connector for single mode fibers
Sample Positioning
total travel range
independent degrees of freedom for sample of 3 x 3 x 2.5 mm³ (closed loop) and for
fiber-based objective of 3 x 5 x 5 mm³ (closed loop)
step size
0.05..3 µm @ 300 K, 10..500 nm @ 4 K
fine scan range
sample: 30 x 30 µm² @ 300 K, 12 x 12 µm² @ 4 K (open loop)
fiber-based objective: 50 x 50 µm² @ 300 K, 30 x 30 µm² @ 4 k (open loop)
sample holder
Ti plate with aperture of 8 mm in diameter with integrated heater and calibrated
temperature sensor
Suitable Operating Conditions
temperature range
1.5 K..300 K (dependent on cryostat); mK compatible setup available on request
magnetic field range
0..14 T (dependent on magnet)
(16 T compatible version available on request)
operating pressure
designed for He exchange gas
Suitable Cooling Systems
titanium housing diameter
48 mm
bore size requirement
designed for a 2" (50.8 mm) cryostat/magnet bore
compatible cryostats
attoDRY1000/1100/2100
attoLIQUID1000/2000
Electronics
scan controller and software
ASC400 (optional; for detailed specifications please see attoCONTROL section)
laser
LDM600 laser/detector module (for detailed specifications please see attoCONTROL
section)
Options
closed loop upgrade for coarse
positioners
incl.
* Resolution may vary depending on applied tip, sample, and cryostat
All rights, including rights created by patent grant or registration of a utility model or design as well as rights of technical modifications are reserved. Delivery
subject to availability. Designations may be trademarks, the use of which by third parties for their own purposes may violate the rights of the trademark owners.
© attocube systems AG 2001-2015.
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