attoPUBLICATIONS attoCFM | Page 18

Specifications attoCFM IV 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 one channel with fiber-coupled low temperature compatible aspheric objective 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 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 (others on request) 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 (others on request) 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) 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