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


  • 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


  • 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:

  • Cryostat
  • Temperature Controller
  • Accessories and Manuals
  • Software


  • 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.

Optistat CF-V
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