By adding a cryostat or heat stage to the VASE for variable temperature studies, measurements can be conducted at temperatures as low as 4.2K and as high as 1000° C.
Linkam Standard Heat Stage
The Linkam Standard Heat Stage enables temperature-controlled ellipsometry measurements between -70° to 600° C with stability of 0.1° C. The heating chuck is 22 mm in diameter and can accommodate similarly sized samples. The heat stage features a custom lid with optical ports configured for ellipsometry measurements at 70° (AOI) to promote a controlled environment and enable purging when necessary.
Linkam High-Temperature Heat Stage
Linkam’s High Temperature Heat Stage is intended for applications that require temperature above 600° C. This heat stage enables measurements up to 1000° C by incorporating a crucible heater in the temperature stage. The crucible design is compatible with samples up to 17 mm in diameter and is sold with a custom lid that enables ellipsometry measurements at 60° (AOI). Customers with primary interest in temperature measurements below 600° C should consider the standard heat stage.
Lake Shore Cryostat
The Lake Shore Cryostat provides an ultra-high-vacuum, continuous-flow cryostat for variable temperature studies between 4.2 to 800 K. The cryostat can accommodate samples up to 25 x 25 mm and has optical viewports for ellipsometry measurements at 70° (AOI). The cryostat includes a temperature controller, turbo vacuum pump, custom table, and software for coordinating temperature control with ellipsometric measurements.
Several cells with optical windows for measurement through liquid ambient enable characterization of liquid/solid interface. Options include:
+45mL Electrochemical Cell
+270uL Liquid Cell
+5mL Liquid Cell
+Liquid Prism Cell
Sample Mounting Options
We offer a variety of sample stage mounts to accommodate your measurement needs. Our standard and small sample stages are provided with every ellipsometer, while the others are available as upgrades. Options include:
+Small Sample Stage
Focusing & Camera
Add focusing optics to decrease the measurement beam diameter. Our standard focusing option provides a 100 μm beam diameter. Our alternate focusing option provides a slightly larger, 200 μm beam diameter, but can be used during transmission measurements. Focusing optics are detachable for normal use. Add a camera to view the measurement spot on the sample and improve beam positioning.