NENIR201B 2 in x 2 in Unmounted NIR Absorptive ND Filter; OD 0.1

The NENIR201B is a 2 in x 2 in Unmounted Neutral Density (ND) Filter, specifically designed for Near-Infrared (NIR) applications. This filter is developed by Thorlabs, a renowned vendor known for its high-quality optical components. The NENIR201B filter is part of the NENIR series, which is characterized by its high absorption in the NIR region.

This filter is designed with a rectangular base shape and a thin lens shape, making it compatible with various optical systems. The geometry of the filter includes a width of 50.8 mm, a height of 50.8 mm, and a thickness of 0.5 mm, ensuring a compact and lightweight design.

The NENIR201B filter features a coating on both the front and back surfaces, identified as 'tho nenir01b'. This coating is specifically designed to provide an Optical Density (OD) of 0.1 at a wavelength of 1550 nm. This OD value indicates that the filter reduces the transmitted intensity to 10% of the incident intensity at this wavelength.

The filter is available for purchase through the Thorlabs website, and the link provided in the item data indicates that it is currently in stock. This information, along with the catalog number, can be used to easily locate and purchase this item from the vendor's website.