Ulm University – Brewster Window Installation
Torr Scientific recently supplied the Institute for Surface Chemistry and Catalysis based at Ulm University in Germany with a DN40CF demountable fused silica Brewster vacuum window. The demountable window uses FKM O-rings to make the vacuum seal, this allows the fused...
Silicon Viewport
Silicon can be used as a vacuum window material, it has good optical properties in the mid-IR range which is useful for many imaging, biomedical and military applications. The material has high thermal conductivity and low density, making it suitable for laser...
Differentially Pumped Viewports
Differentially pumped viewports are a useful way of introducing optical materials that cannot be sealed with more traditional methods to a vacuum system as a window. The optic sits on a pair of O-rings, the interspace between the O-rings is pumped by an auxiliary...
Brewster Window Case Study
Torr Scientific recently manufactured a demountable brewster window for one of our customers at the Institute for Surface Chemistry and Catalysis (IOK) located in the University of Ulm in Germany.The window has a demountable fused silica optic, which allows it to be...
Brewster Window Theory
Get used to Brewster Polarized light, or more strictly plane-polarized light, has its electric field vibrating partially or totally in a particular direction. Non‑polarized light can be thought of as having an electric field that vibrates equally in all possible...
New Product: Installation Kits
Viewport Installation Metric Bolt kits It is always exciting getting your hands on one of our high-precision vacuum viewports. However, the excitement can be cut short when you realise you haven’t got the correct bolt set to install it. If this is you, there’s no...
New Product KVPZ25-16LA Replaces KVPZ25
Torr Scientific have re-designed our NW25KF kodial viewport to give it a lower overall height following requests from many of our customers. The old part code KVPZ25 will be superceeded by the new KVPZ25-16LA.The overall height has been reduced from 18.5 mm to 9.8 mm,...
High Flatness Viewports
Torr Scientific offer high-flatness fused silica viewports in a range of sizes, ranging from λ/10 to λ/20 @ 632.8nm, using a bonding process as an alternative to vacuum brazing. Vacuum brazing viewports at high temperatures creates stress in the optic during the...
Max Planck Re-entrant Windows
Torr recently designed, manufactured, tested and supplied four special 1700mm long re-entrant viewports to the Max-Planck Institute. These are being installed on the Wendelstein 7-X stellarator in Greifswald Germany as part of an ongoing system upgrade. Wendelstein...
Titanium fused silica and sapphire viewports at Torr Scientific.
The boffins in the technical department at Torr have been hard at work developing a range of vacuum brazed titanium viewports.Titanium has some advantages over stainless steel, including lighter weight & being truly non-magnetic, the optics are vacuum brazed into...