attoCFM I
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Specifications attoCFM I
General Specifications type of instrument free-beam based room temperature optics head coupled to low temperature objective
sensor head specifics unique low temperature compatible achromatic objectives with high numerical aperture , optimized for different wavelength ranges
Confocal Unit configuration compact and modular design , two or more optical channels standard configuration : 1 excitation channel , 1 detection channel quick-exchange of optical components beamsplitters , filter mounts for up to 4 filters / polarizers ( 1 " diameter ), optional piezoelectric rotator with filter mount
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
400 .. 1000 nm default : 650 nm ( others on request )
Detection detection mode e . g . reflection , luminescence , flourescence , Raman ( optional ) Sample Positioning total travel range 5 x 5 x 5 mm ³ ( open loop ) step size
0.05 .. 3 μm @ 300 K , 10 .. 500 nm @ 4 K fine scan range 50 x 50 µ m ² @ 300 K , 30 x 30 µ m ² @ 4 k ( optional , open loop ) closed loop scan resolution ( steady state , 100 ms sample time ) 1 nm rms typ . sample holder
ASH / QE / 4CX quick-exchange sample holder with 8 electrical contacts and integrated heater with 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 .. 15 T + ( dependent on magnet ) operating pressure designed for He exchange gas ( vacuum compatible version down to 1E-6 mbar on request ) 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 ( attoLIQUID3000 / 5000 on request )
Electronics scan controller and software ASC500 ( for detailed specifications please see attoCONTROL section ) laser LDM600 laser / detector module ( for detailed specifications please see attoCONTROL section ) Options closed loop scanning & global sample coordinates interferometric encoders for scan linearization and closed loop sample navigation ultra-large scan range upgrade
80 x 80 @ 300 K 125 x 125 @ 4 K in-situ inspection optics incl . with CFM I external optics head closed loop upgrade for coarse positioners resistive encoder , range 5 mm , sensor resolution approx . 200 nm , repeatability 1-2 µ m sample holder upgrade
ASH / QE / 4CX quick-exchange sample holder with 8 electrical contacts and integrated heater with calibrated temperature sensor