Trurupica 产品联系：email@example.com，185 0219 3480.
Tsurupica Spiral Phase Plate（频率覆盖1-12THz太赫兹频段，所有都可以按要求定制）
螺旋相位板标准尺寸： OD:80mm (with holder), CA:42mm
No absorption around 2THz ( Polyethylene has strong absorption around 2THz)
High transmission for both VIS and THz region
Freq. Range: upto 12THz
Same refractive index at THz & Visible range : 1.52 @ THz wave 1.52 @ Visible wave
Suitable for window of Bolometer, cryostat, detector or chamber
Aperture: upto 100mm or 4" as standard size
Concave, convex, Bi-convex, cylindrical, Aspheric, wedge plate, prism, sample plate, etc..
A number of non-polar resins are equipped in THz region because of their small attenuation in THz. Smaller absorption of water is also important in humid environment. Some of these have good transparency both for visible and THz waves such as Tsurupica.
Tsurupica only have the smallest modling shrinkage and CTE in these materials. Tsurupica also show good machinability. These characteristics guarantee high precision both for molding optics (for volume product) and machining optics (for custom product).
Comparatively high refractive index realize high NA (large diameter with small focal length) with small abberation which is often required for condenser lens in THz.
Tsurupica is the best transparent resin in THz, especially for the application which requires high precision.
Transmission data: Tsurupica has no absorption around 2 THz