NENIR01A Dia:25 mm NIR Absorptive ND Filter; SM1-Threaded Mount; OD: 0.1

The NENIR01A is a Neutral Density (ND) Filter, specifically designed for use in the Near-Infrared (NIR) region of the spectrum, with a center wavelength of 1550 nm. This filter is manufactured by Thorlabs, a leading vendor in the field of optical components. The NENIR01A is a circular filter, with a diameter of 25 mm and a thickness of 0.5 mm, making it suitable for a wide range of optical applications.

The filter features a special coating, denoted as 'tho nenir01anirabsnd' on both the front and back surfaces. This coating is designed to absorb NIR light, thereby reducing the intensity of the incident light without altering its color balance. This makes the NENIR01A an ideal choice for applications where control over light intensity is crucial, such as in laser systems, interferometry, and imaging applications.

The NENIR01A is mounted in an SM1-threaded mount, providing a secure and stable platform for the filter. The SM1 thread is a standard thread size in the optical industry, ensuring compatibility with a wide range of optical systems and components. The mount also features an Outside Diameter (OD) of 0.1 mm, which is designed to minimize vignetting and ensure optimal performance.