228FS25-25 25mm Dia. 228nm Bandpass Filter, HBW 25nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Andover Corporation
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 240.5 nm
- Cut On Frequency
- 215.5 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5217655675706196
- λ
- 228 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
228FS25-25 25mm Dia. 228nm Bandpass Filter, HBW 25nm
The 228FS25-25 is a 25mm diameter Bandpass Filter, specifically designed with a center wavelength of 228nm and a high bandwidth of 25nm. This filter is sourced from Andover Corporation, a renowned vendor in the optical industry, and is available for purchase on their official website.
The filter is made of UVFS MAL-1965 material, a common choice for applications in the ultraviolet spectrum. It features a circular base shape and a thickness of 3.5mm, making it suitable for a wide range of optical systems. The physical data of the filter includes a cut-on wavelength of 215.5nm and a cut-off wavelength of 240.5nm, ensuring a tight bandpass around the desired 228nm.
The coating on both the front and back surfaces of the filter is AND 228FS25, a proprietary coating developed by Andover Corporation. This coating enhances the filter's performance and durability, making it an ideal choice for demanding applications. The filter's shape is that of a thin lens, further enhancing its versatility in optical systems.
