The NENIR213B is a 2 in x 2 in Unmounted Neutral Density (ND) Filter, specifically designed for Near-Infrared (NIR) applications with a center wavelength of 1550 nm. This filter is sourced from Thorlabs, a renowned vendor known for its high-quality optical components.
The filter is made of UVFS material, identified by the Mal-1965 material ID. It features a thin lens shape, with a width, height, and thickness of 50.8 mm, 50.8 mm, and 0.8 mm respectively. This compact size makes it suitable for various optical systems where space is a constraint.
The NENIR213B is coated with the THo NENIR13B coating on both the front and back surfaces. This coating provides an Optical Density (OD) of 1.3, which translates to a transmission of approximately 5%. This makes it ideal for use in high-power NIR applications where light attenuation is required.
The filter is currently in stock and available for purchase. For more information, you can visit the vendor's website through the provided weblink. The link has been validated and is currently active.