Cryogenic
Photonic Probe
Station
PAGE 154
Specifications
Cryogenic Photonic Probe Station
General Specifications
type of instrument
combined side injection into planar waveguide structures and perpendicular confocal optics on
top of the sample. Perpendicular injection is possible
sensor head specifics
two independent lensed fiber probes with 3 individual degrees of freedom, low temperature
compatible apochromatic objective and external confocal optics head
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: approx. 100 μm
long-term stability
lateral drift of confocal spot typically <2 nm/h
Sample Positioning
total travel range
Sample: 6 mm x 6 mm (closed loop)
fiber probes: 3 x 3 x 2.5 mm³ (closed loop)
sensor resolution approx. 200 nm, sensor repeatibility approx. 1-2 μm
step size
0.05..3 μm @ 300 K, 10..500 nm @ 4 K
sample holder
carefully thermalized, quick exchange mechanism, including calibrated temperature sensor and
heater
temperature range
4..320K
operating pressure
1E-6 mbar .. 1 bar
Suitable Cooling Systems
compatible cryostats
attoDRY800
(flow cryostats on request)
laser
LDM600 laser/detector module (for detailed specifications please see attoCONTROL section)