FTIR cryostats
STVP-FTIR, ST-FTIR, and VPF-FTIR cryostats are optimized for use with commercial FTIR spectrometers. An integrated translation stage is used to move a reference or sample into alignment with the IR beam. Sample holders have three positions and integrated rotation provides additional sample-to-beam alignment. Mounting flanges are available for securing to a wide range of FTIR sample compartments, including purged and evacuated configurations. Access to the sample space is provided by a quick disconnect clamp. The four-way optical sample chamber can be configured for reflectance or transmission measurements. Optional window materials can be installed to span the far/mid-IR, VUV, and x-ray regions for a variety of spectroscopic measurements. A compact vacuum shroud is available for use with the reflectance accessory of most commercial FTIR spectrometers. For the STVP and ST models, temperatures below 4.2 K are achieved by reducing the venting helium gas pressure using a vacuum pump.
STVP-FTIR and ST-FTIR cryostats can be combined with the RGC recirculating gas cooler for cryogen-free operation, enabling unattended cryostat operation — ideal for extended duration measurements.
FTIR cryostat features
- Integrated sample translator
- Linear manipulator with 51 mm (2 in) travel
- Multiple-position sample holder
Every cryostat comes with a Lake Shore temperature controller and calibrated sensor
| Minimum temperature | Maximum temperature | Sample environment | |
|---|---|---|---|
| STVP-FTIR | <2 K | 325 K | Flowing vapor |
| ST-FTIR | <2.5 K | 500 K | Vacuum |
| VPF-FTIR | 65 K | 500 K | Vacuum |
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