Cryogen-free dilution refrigerator with optical access – LD optical

ModelLD250 optical
Internal designationLD optical
Technical resource(s)Simon Fortier
Stéphane Morin
Types of analysis
Electrical measurements at very low temperatures.
Optical measurements.
Quantitative, semi-quantitative, qualitative
Sample size (mm)
min: -
max: diameter 30 cm x 33 cm height
Temperature (K)min: 10 mK
max: 1.5 K
Magnetic field (T)min: -
max: -
Measurements: DC or microwave?DC and microwave measurements
Time required to cool the sample downApproximately 24 h
Specific featuresCryogen-free equipment - liquid helium not used
Vibration isolation system with two optical ports (transmission)
Helium battery which allows an autonomy of a few hours without requiring the use of the pulse tube
Cooling power: 455 μW at 100 mK and 15 μW at 20 mK
8 high frequency lines (18 GHz) and 48 DC electrical lines
What makes it unique?Optical ports
Active anti-vibration system
Helium battery

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