The MO-Cryo superconducting Magnet optical cryostat integrates ultra-low temperatures, strong magnetic fields, and optical testing into a highly integrated and flexible cryogenic system. With 7 side optical windows, 1 top optical window, and 1 bottom window, it enables multi-directional and free optical measurements in a cryogenic strong magnetic-field environment. The internal large sample space accommodates a multi-axis cryogenic piezoelectric stage and in-situ electrical testing leads, meeting testing needs such as low-temperature MOKE, TR-MOKE, low-temperature Raman,low-temperature photoluminescence, ultrafast laser pumping, terahertz time-domain spectroscopy, etc.
| Equipment Performance Indicator | Description |
|---|---|
| Temperature Range | 1.7 K-350 K |
| Temperature Stability | ±0.2% for temperatures <20 K; ±0.02% for temperatures >20 K |
| Magnetic Field | Conical split-coil superconducting magnet, vertical direction, ±7 T strength, ±0.3% uniformity (3 cm spherical area), field variation speed 0-7 T ≤30 minutes |
| Vibration | Sample stage vibration <±20 nm |
| Sample Space | 89 mm diameter, 88 mm height |
| Optical Windows | 1 top window (50 mm diameter, 44 mm clear aperture), 7 side windows (40 mm diameter, 26 mm clear aperture) |
| Optical Viewing Angle | Top window 70° full viewing angle, side windows 13° full viewing angle |
| Electrical Channels | 16 DC lines, 4 20 GHz RF lines, up to 80 cables supported |