The OptistatTMDry is designed to be:

Versatile

  • Suitable for a wide range of experiments and different spectroscopy techniques (UV/VIS reflectivity and absorption, Raman scattering, FTIR, Fluorescence, Photoluminescence, Electrical transport measurements, Ultrafast spectroscopy, THz spectroscopy, Electroluminescence, etc.)
  • Designed to interface with all types of optical benches; the feet match both Imperial (1 inch spacing) and Metric (25 mm spacing)

Upgradeable

  • Designed with a modular philosophy that allows the cryostat to evolve with your experiment, allowing you to start with a basic system and as experimental needs change, upgrade to additional functionalities at a later date, for example, add extra wiring, different sample holders and windows
  • A wide range of different sample holders, windows and wiring options enable you to upgrade your system as your experimental needs develop

Simple to use

  • Changing your sample through the unique load port is quick and simple; this eliminates the need to remove the cryostat from the optical bench and re-align your optics after each and every sample change
  • No liquid cryogens are required
  • Air or water-cooled compressors are available; single phase electrical power means the system is easy to install in all standard laboratory environments

Optical excellence

  • The OptistatTMDry comes with f1 and large clear optical access as standard
  • The OptistatTMDry has one window per optical access, a window in the OVC only; this makes the system particularly suitable for customers who need to minimise absorption losses
  • A wide range of different window materials are available to suit different wavelengths; wedged windows and anti-reflection coatings are also available 

The cooling source for the cryostat is a two-stage Gifford McMahon (GM) refrigerator supplied by Sumitomo Heavy Industries (the RDK-101D cold head and HC-4 compressor). The sample cools through a direct conductive thermal path to the second stage of the refrigerator. The first stage of the refrigerator is used to cool a radiation shield which minimises the radiative heat load to the second stage of the refrigerator and to the sample region.

The lower tail section of the cryostat (the window block) has been designed so that it is easy to remove and replace the sample mounting platform, once the cryostat has been warmed to room temperature (cooler switched off) and the cryostat vacuum let up to atmospheric pressure. The sample mounting platform has two main variants. The first is a simple nickel plated copper blade platform suited to optical experiments, with no or limited electrical measurement requirements. The second is a circuit board style platform (puck) suited to combined optical/electrical transport experiments.