NENIR540B Dia. 0.5 in NIR Absorptive ND Filter; OD 4.0

The NENIR540B is a Neutral Density (ND) Filter, specifically designed for use in the Near-Infrared (NIR) spectrum with a center wavelength of 1550nm. This filter is manufactured by Thorlabs, a leading vendor in the optical components industry, and is available for purchase through their official website. The catalog number for this product is NENIR540B.

This filter is circular in shape, with a diameter of 12.7mm and a thickness of 2.6mm, making it compatible with a wide range of optical systems. The NENIR540B features a Thin Lens shape, which is designed to minimize optical aberrations and ensure optimal performance.

The NENIR540B is coated with Thorlabs' proprietary NENIR40B coating on both the front and back surfaces. This coating provides an Optical Density (OD) of 4.0, which translates to a transmission of approximately 0.01% at the specified center wavelength. This high level of attenuation makes the NENIR540B ideal for applications that require significant reduction of light intensity, such as high-power laser applications.

According to Thorlabs' website, the NENIR540B is currently in stock, indicating that it is readily available for purchase and delivery. For more information about this product, including pricing and shipping details, please visit the Thorlabs website using the provided weblink.