NE01B-A Dia. 25 mm AR-Coated Neutral Density Filter; 350-700nm; OD 0.1 AR 350-700nm

The NE01B-A is a Neutral Density Filter with a diameter of 25 mm, manufactured by Thorlabs. This filter is designed for use within the wavelength range of 350-700nm, making it suitable for a wide range of optical applications. The filter has a thickness of 0.6 mm, which is thin enough to minimize optical aberrations while providing sufficient durability.

The NE01B-A filter features Anti-Reflection (AR) coatings on both the front and back surfaces. These coatings are specifically designed for the wavelength range of 350-700nm, ensuring minimal loss of light due to reflection. The AR coatings also help to reduce surface scatter, which can lead to improved image quality in imaging systems.

The filter is shaped as a Thin Lens, which is a type of optical component that focuses light without introducing significant spherical aberration. This shape is particularly useful in applications where a precise focus is required, such as in microscopy or beam shaping.

The NE01B-A filter is made from UVFS MAL-1965, a material known for its excellent optical properties and durability. This material is also resistant to common laboratory chemicals, making it a good choice for use in demanding environments.