NF561-18 Dia. 25 mm Notch Filter; CWL=561nm; FWHM=18nm
- Type
- Filter
- Subtype
- Notch Filter
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.459459512195785
- λ
- 561 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
NF561-18 Dia. 25 mm Notch Filter; CWL=561nm; FWHM=18nm
The NF561-18 is a notch filter with a diameter of 25 mm, designed for use in optical systems that require precise wavelength control. This filter is sourced from Thorlabs, a leading vendor in the field of optical components. The NF561-18 is specifically designed for use at a central wavelength (CWL) of 561 nm, with a full width at half maximum (FWHM) of 18 nm.
The filter is made from UVFS material, identified by the Mal-1965 material ID. It has a thin lens shape, which is designed to minimize optical aberrations and ensure optimal performance in your system. The filter's geometry includes a thickness of 3.5 mm, which contributes to its durability and stability.
The NF561-18 features a coating on both the front and back surfaces. This coating, identified as tho nf561-18, is specifically designed to enhance the filter's performance at the specified wavelength. The filter is currently in stock and available for immediate purchase through the Thorlabs website, as indicated by its valid weblink status.
