Optistat CF-V

Optistat CF-V

3.2 K - 500 K temperature range. May be extended down to 2.2 K when used with a rotary pump (not supplied as standard)
Cooling to 4.2 K in about 10 minutes
Low liquid helium consumption, <0.45 L/h when used with a low-loss transfer siphon
Large sample space for studying samples with a wide range of size and geometry
Configured for reflectance and transmission measurements
Minimal number of windows in the optical path, reducing reflective losses
Superb optical access (f/0.9) for measurements requiring light collection
Large illumination area: 23 mm diameter window aperture
Demountable radiation shield windows to maximise transmission intensity
Compact size allowing easy integration into commercial spectrometers
Measurement-ready, via 10-pin electrical wiring to the sample
Supplied with a MercuryiTC temperature controller
1 year standard warranty

Features:

Low cryogen consumption: Brings significant benefits in terms of running cost
Quick experiments: A range of sample holders and probes, including liquid cuvettes sample holders and height adjust/rotate probes, are available
Simple: The experimental windows and sample holders can be easily changed
Versatile: A range of window materials are available.
Superior performance: A dynamic exchange gas model, suitable for low conductivity or high heat load samples, is available. Please contact your local sales representative for more information
Software control: Oxford Instruments electronics products are controllable through the software using RS232, USB (serial emulation), TCP/IP or GPIB interfaces. LabVIEW function libraries and virtual instruments are provided for Oxford Instruments electronics products to allow PC-based control and monitoring. These can be integrated into a complete LabVIEW data acquisition system
Versatile: The OptistatCF-V “cold unit” is interchangeable between the MicrostatHe and MicrostatHe-R, enabling a modular set of optical cryostats for huge experimental flexibility

Specifications:

Temperature range: 3.2 to 500 K, may be extended down to 2.2 K
Temperature stability: ± 0.1 K
System may also be run with liquid nitrogen, temperature range: 77 to 500 K
Liquid helium consumption rate at 4.2 K: < 0.45 l/hr
Cool down consumption: 1.3 litre (nominal)
Room Temperature to base temperature: approx. 10 min with pre-cooled transfer siphon
Sample change time: approx. 60 min (sample can be changed with the cryostat cold)
Weight: 2 kg

A typical system comprises of:

Applications:

UV / Visible spectroscopy: Experiments at low temperatures reveal the interaction between the electronic energy levels and vibrational modes in solids.
Infra-red spectroscopy: Low temperature IR spectroscopy is used to measure changes in interatomic vibrational modes as well as other phenomena such as the energy gap in a superconductor below its transition temperature.
Raman spectroscopy: Lower temperatures result in narrower lines associated with the observed Raman excitations.
Photoluminescence: At low temperatures, spectral features are sharper and more intense, thereby increasing the amount of information available.