This is a Silicon Flat Window, sourced from the reputable vendor Alkor Technologies. The window, identified as SI-W-38.1-3, has a base shape of a circle with a diameter of 38.1 mm, making it suitable for a wide range of optical applications. The window's thickness is 3 mm, providing a good balance between durability and transparency.
The material of this window is silicon, specifically silicon sal vil 1957. This material is known for its excellent optical properties, including high transparency and resistance to environmental factors. The window is uncoated, meaning it does not have any additional layers to enhance or alter its optical properties.
The window is designed in the shape of a thin lens, which can help to focus or disperse light in certain applications. The wavelength of this window is 633 nm, which is within the visible light spectrum. This makes it suitable for applications where visible light is used or detected.
For more information about this product, including pricing and availability, please refer to the vendor's website at http://www.alkor.net/Silicon_windows.html.