inspection unit |
sample imaging with large field of view : ~ 75 μm ( attoDRY ), ~ 56 μm ( attoLIQUID ) |
Illumination | |
excitation wavelength range |
400 .. 1000 nm |
default : 532 nm ( others on request ) | |
light source |
dedicated Raman laser , single mode fiber coupled |
light power on the sample |
typically 1 pW .. 10mW |
optical filter |
laser line filter |
Detection | |
detection mode |
2D Raman images , time and single point Raman spectra |
spectrometer |
ultra-high transmission spectrometer , f = 300 mm |
total optical transmission |
greater 60 % at 532 nm |
filters |
dichroic mirror & edge filter for signal detection as close as 90 cm-1 to the laser line |
gratings |
typ . 600 / mm and 1800 / mm grating |
spectral resolution |
1 cm-1 at 1800 / mm grating |
CCD camera |
back-illuminated CCD , peltier-cooled to -60 ° C at 20 ° C room temperature , 1024x127 pixels , 90 % quantum |
efficiency at 532 nm , 100 kHz readout converter | |
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 μm ² @ 300 K , 30 x 30 μm ² @ 4 k ( open loop ) |
sample holder |
ASH / QE / 0 quick exchange sample holder 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 ) | |
Complete microscope stick attoRAMAN | |