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Optistat DN-V2

Oxford Instruments

Optistat DN-V2 Nitrogen cryostat 77 K, sample in vacuum

Our nitrogen cryostat, OptistatDN-V2 is ideal for experiments which require 77 K base temperature a large sample space and a minimum number of windows in the optical beam path thus reducing reflective losses.

• Wide temperature range: from 77 K - 500 K
• Large sample space enabling studies of sample with a wide range of size and geometry
• 15 hours cryogen hold time before refills required providing the convenience of a full working day operation
• Superb optical access (f/1) for measurements requiring light collection
• Electrical measurements via 10-pin electrical feed wire to heat exchanger and/or wired on coax connectors
• Optimised clear beam throughput (35 mm diameter aperture) allows a large illumination area for measurements involving the detection of low intensity light
• No cold windows enabling the use of any window material above 300 K
• Compact size allowing easy integration into commercial spectrometers
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  • Specifications
  • System Components/Options
  • Optional items
  • Windows
  • Sample holders
  • New OxSoft IDK software
  • Applications
  • PDFs

Temperature range

77 - 500 K

Temperature stability

± 0.1 K (measured over 10 min period)

Maximum sample space

20 mm diameter

Sample holder dimensions

20 mm wide x 50 mm long

Sample change time (mins)


Cool down from ambient to 77 K (mins)


Liquid nitrogen capacity

1.2 L

Hold time at 77 K

≥ 15 hours

• OptistatDN-V2 nitrogen cryostat
• Sample holder
• Up to five sets of windows. (four radial; one axial). Only one window is required by axis.
New Mercury iTC temperature controller
• High vacuum pumping system
• Wiring and electrical connections to the sample
A wide range of window materials can be fitted to the OptistatDN-V2 to meet specific spectroscopy applications

• Special windows with non-parallel faces and anti-reflection coatings are available
• Additional or replacement window available via the Oxford Instruments Direct - Cryospares® on-line catalogue

• A wide range of sample holder options is available
With the new Oxsoft IDK you have new levels of control. You can design remote control and configuration programs and integrate your system into your preferred experiment control architecture.
 See also the OptistatDN2 for this cryostat with sample in exchange gas.
UV / Visible spectroscopy: Experiments at low temperatures reveal the interaction between the electronic energy levels and vibrational modes in solids.
Infrared 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.