NENIR20A Dia:25 mm NIR Absorptive ND Filter; SM1-Threaded Mount; OD: 2.0

The NENIR20A is a Neutral Density Filter, specifically designed for Near-Infrared (NIR) applications, with a diameter of 25 mm. Manufactured by Thorlabs, a leading global supplier of photonics equipment, this filter is part of their extensive catalog of optical elements. The NENIR20A is a circular filter, made from N-BK7 Schott glass, a material known for its excellent optical properties and durability.

This filter is designed to absorb NIR light at a wavelength of 1550 nm, making it ideal for a wide range of applications where control over NIR light is necessary. The filter features a thin lens shape, which is beneficial for maintaining the overall optical path length and reducing potential aberrations.

The NENIR20A has a thickness of 1.3 mm and is mounted with an SM1-threaded mount, providing a secure and stable platform for integration into optical systems. The front and back of the filter are coated with Thorlabs' NENIR20ANIRABSND coating, which enhances its absorptive properties for NIR light.

According to Thorlabs' website, the NENIR20A is currently in stock, indicating its availability for immediate purchase and delivery. For more information, users can visit the provided weblink, which leads directly to the product page on Thorlabs' website.