Optistat DN
- 77 K - 500 K temperature range
- Cooling to 77 K in about 20 minutes
- Short sample change time via a top-loading sample probe - as quick as 5 minutes
- Long cryogen hold time, around 15 hours, providing a full working day's operation
- Superb optical access (f/1) for measurements requiring light collection
- Configured for reflectance and transmission measurements
- Large illumination area, 15 mm diameter window aperture
- 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. 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
Specifications:
- Temperature range: 77.2 to 300 K, may be extended up to 500 K
- Temperature stability: ± 0.1 K
- Liquid nitrogen hold time: 15 hrs at 77 K (nominal)
- Room temperature to base temperature: approx. 20 min
- Sample change time: approx. 5 min (sample can be changed with the cryostat cold)
- Weight: 5 kg
A typical system comprises of:
- OptistatDN nitrogen cryostat
- Sample holder and rod
- Up to five sets of windows. (four radial; one axial).Each set includes two windows (radiation shield and outer case windows)
- Mercury iTC temperature controller
- High vacuum pumping system
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.
Optistat DN