NE20B-B Dia. 25 mm AR-Coated Absorptive Neutral Density Filter; 650-1050nm; OD 2.0 AR 650-1050nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4570121244558207
- λ
- 633 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
NE20B-B Dia. 25 mm AR-Coated Absorptive Neutral Density Filter; 650-1050nm; OD 2.0 AR 650-1050nm
The NE20B-B is a Neutral Density Filter with a diameter of 25 mm, designed for use within the wavelength range of 633 nm. Manufactured by Thorlabs, a leading global supplier of photonics equipment, this filter is part of their extensive catalog of optical elements. The NE20B-B filter is specifically designed for applications within the 650-1050nm spectrum, offering an Optical Density (OD) of 2.0.
This filter is made from UVFS material, identified by the Mal-1965 material ID, and has a thickness of 1.4 mm. The front and back surfaces of the filter are coated with AR coatings, specifically the tho ne20b-b coating, designed to minimize reflection and optimize transmission within the specified wavelength range.
The NE20B-B filter features a thin lens shape, making it suitable for a wide range of optical applications. The filter's availability can be checked through the provided weblink, which leads to the product page on Thorlabs' official website. The link has been verified and indicates that the filter is currently in stock, ensuring quick delivery for your optical needs.