NENIR03A Dia:25 mm NIR Absorptive ND Filter; SM1-Threaded Mount; OD: 0.3

The NENIR03A 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 NENIR03A 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 unique coating on both the front and back surfaces, denoted as 'tho nenir03anirabsnd'. This coating is designed to absorb NIR light, thereby reducing the intensity of the incident light without altering its color balance. This makes the NENIR03A an ideal choice for applications where control over light intensity is crucial, such as in laser systems, interferometry, and various imaging techniques.

The NENIR03A 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 0.3 mm, which is a common size for many optical components, further enhancing its compatibility.

In terms of its material composition, the NENIR03A is made of N-BK7 Schott, a high-quality borosilicate glass known for its excellent optical properties. This material ensures high transmittance, low auto-fluorescence, and excellent chemical resistance, making the NENIR03A a reliable and durable choice for various optical applications.

The NENIR03A is currently in stock and available for purchase through the Thorlabs website, as indicated by its 'Valid - in stock' status in the item data. For more information or to make a purchase, users can follow the provided weblink.