Our Optistat range of optical cryostats provide cryogenic sample environments with a variety of design and performance characteristics. Available with liquid Nitrogen (LN2), liquid Helium and Cryofree® technologies, sample in vacuum and sample in exchange gas systems, with sample temperatures from < 2.3 K to 500 K. The Optistat range offers some of the most efficient and cost effective cryostats for Optical Spectroscopy, ideally suited to optical table based experiments or integration with 3rd party spectrometers. We also offer a range of optical cryostats for microscopy.
| 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. |
| Software Control: | Our 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 our electronics products to allow PC-based control and monitoring. These can be integrated into a complete LabVIEW data acquisition system. |
| System Configuration: |
A tpyical system is comprised of:
|
| 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. |
| Software Control: | Our 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 our electronics products to allow PC-based control and monitoring. These can be integrated into a complete LabVIEW data acquisition system. |
| System Configuration: |
A tpyical system is comprised of:
|
| 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. The OptistatCF-V "cold unit" is interchangeable between the MicrostatHe and MicrostatHe-R, enabling a modular set of optical cryostats for huge experimental flexibility. |
| Superior Performance: | A dynamic exchange gas model, suitable for low conductivity or high heat load samples, is available. |
| Software Control: | Our 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 our electronics products to allow PC-based control and monitoring. These can be integrated into a complete LabVIEW data acquisition system. |
| System Configuration: |
A tpyical system is comprised of:
|
| 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. |
| Software Control: | Our 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 our electronics products to allow PC-based control and monitoring. These can be integrated into a complete LabVIEW data acquisition system. |
| System Configuration: |
A tpyical system is comprised of:
|
| Versatile: | Suitable for a wide range of experiments and different spectroscopy techniques. Designed to interface with both imperial (1") and metric (25 mm) optical benches. |
|---|---|
| Upgradeable: | A wide range of different sample holders, windows and wiring options enable you to customise and upgrade your system as your experimental needs develop. |
| Fast Experiment: | Changing samples via the unique sample access port is quick and simple, eliminating the need to remove the cryostat from the optical bench or re-align your optics after each and every sample change. |
| Cryofree®: | No liquid cryogens are required. |
| Ease of Use: | Only requiring single phase electrical power means the system is easy to install in a standard laboratory environment. Air- or water-cooled compressors are available. |
| Software Control: | Our 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 our electronics products to allow PC-based control and monitoring. These can be integrated into a complete LabVIEW data acquisition system. |
| System Configuration: |
A tpyical system is comprised of:
|
| Versatile: | Suitable for a wide range of experiments and spectroscopy techniques. Designed to interface with all types of optical benches; the feet match both Imperial (1" spacing) and Metric (25 mm spacing). |
|---|---|
| Upgradeable: | A wide range of different sample holders, windows and wiring options enable you to upgrade your system as your experimental needs develop. |
| Fast Experiment: | You can leave the cryostat in situ on the optical bench during sample change, eliminating the need for time-consuming re-alignment of your optical set-up. |
| Cryofree®: | No liquid cryogens are required. |
| Ease of Use: | Only requiring single phase electrical power means the system is easy to install in a standard laboratory environment. Air- or water-cooled compressors are available. |
| System Configuration: |
A tpyical system is comprised of:
|
For additional product information:
Contact Our Sales Team| Model | OptistatDN-X | OptistatDN-V | OptistatCF-X | OptistatCF-V | OptistatDry TLEX | OptistatDry BLV |
|---|---|---|---|---|---|---|
| Cryogen | Nitrogen | Nitrogen | Helium (or Nitrogen) | Helium (or Nitrogen) | Cryofree™ | Cryofree™ |
| Sample Environment | Exchange Gas | Vacuum | Exchange Gas | Vacuum | Exchange Gas | Vacuum |
| Base temperature | 77.2 K | 77.2 K | 3.4 K | 3.2 K | 6.5 (4 windows) | 6.5 (4 windows) |
| Minimum temperature | 77.2 K | 77.2 K | 2.3 K*** | 2.2 K*** | <4 K (blanks fitted) | <3 K (blanks fitted) |
| Maximum temperature | 300K (500 K*) | 500 K | 300K (500 K*) | 500 K | 300 K | 300 K |
| Temperature stability (period) | ±0.1 K (10 mins) | ±0.1 K (10 mins) | ±0.1 K (10 mins) | ±0.1 K (10 mins) | ±0.1 K (10 mins) | ±0.1 K (10 mins) |
| Maximum sample space | 20 mm Ø | 20 mm Ø | 20 mm Ø | 30 mm x 58 mm | 20 mm Ø | 40 mm x 50 mm |
| Sample holder dims | 19 mm x 30 mm | 20 mm x 50 mm | 19 mm x 30 mm | 20 mm x 50 mm | 19 mm x 30 mm | 20 mm x 50 mm |
| Cooldown from room temperature | 20 mins | 20 mins | 10 mins | 10 mins | 6 hrs | <2.5 hrs (LX20), <3 hrs (DC12) |
| Vibration | n/a | n/a | <0.1 µm RMS** | <0.1 µm RMS** | <10 µm RMS** | <10 µm RMS** |
| Customer wiring | 10 DC | 10 DC | 10 DC | 10 DC | 10 DC | 20 DC (LX20), 12 DC (DC12) |
* With HT windows fitted
** Typical, in conjunction with local vibration mitigation practices
*** With 40m3 rotary pump option
Raman Scattering or the Raman effect is the inelastic scattering of a photon by molecules which are excited to higher vibrational or rotational energy levels. The Optistat range allows for analysis of a wide range of materials, including gases, liquids, and solids.
Highly complex materials such as biological organisms and human tissue can also be analysed by Raman spectroscopy using the sample-in-exchange gas models and range of sample holders.
Photoluminescence (PL) is commonly used for investigating semiconductors that can be studied at room temperature. At low temperatures, spectral lines are sharper and more intense, revealing more structure.
The wide range of temperatures offered by the Optistat range allow for the detection of excitations normally masked by the high thermal phonon background at room temperature.
Ultraviolet–visible spectroscopy or UV/VIS refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region.
Optistat systems are available with a wide range of window materials, including SpectrosilB/WF for UV/Vis wavelengths.
Infrared and Terahertz spectroscopy, widely used for polymer research, inorganic chemistry, pharma or drug related research, as well as solid state and semiconductor physics, can be studied with the use of CaF2, ZnSe or TPX windows fitted to the Optistat range of cryostats.
Since the Optistat windows are user-changeable, this allows for a great level of versatility across a wide range of transmission wavelengths.
Fluorescence spectroscopy, a type of electromagnetic spectroscopy that analyses fluorescence from a sample, is a popular application for the OptistatDN/CF range.
With the fast sample change in the sample-in-exchange gas cryostats, they can be used in Physics, biochemical, medical, and chemical research fields for analysing organic compounds. Many companies also offer compartment adaptors for their spectrometers to interface with the Optistat range of cryostats.
Photoreflectance (PR) is a very sensitive optical probe method on the electronic structure of semiconductors, especially for the band-edge structure and discrete level in the bang gap.
Through a modulated pumping by laser, the reflectance signal of the sample responds sharply on critical points around the band edge and in the band gap. The use of an Optistat cryostat for additional temperature evolution can allow for the extraction of more supplementary information such as ionization energy.
Optistat cryostats are supplied with Spectrosil B windows as standard, providing good transmission from UV to mid-IR wavelengths.
In addition, we can supply a range of window materials to suit applications from UV through the extreme IR and THz wavelengths.
All windows are user-changeable and allow you to configure your experiment with the best transmission characteristics for each of the available optical ports.
View our Optical Cryostats Windows Tool.
The OptistatDry BLV Cryofree® is equipped with a unique side-loading access port. When used in conjunction with the removeable sample pucks and the low vibration stand, this allows samples to be exchanged easily without the need to realign your experimental optics or move your cryostat.
Sample holders are available for transmission or reflection with the option of a 20-pin wired connector above the sample position or 12 sprung PCB connections for dc electrical signals in/out.
Changing samples and making/breaking electrical connections without disturbing your optical alignment could not be simpler.
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