65-725 25 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=7.5mm 830nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 835 nm
- Cut On Frequency
- 825 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.452815646142312
- λ
- 830 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
65-725 25 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=7.5mm 830nm
The 65-725 is a mounted traditional coated bandpass interference filter, designed and manufactured by Edmund Optics. This filter is characterized by its circular shape, with a diameter of 25 mm, and a thickness of 7.5 mm, making it suitable for a wide range of optical applications.
The filter is designed to operate at a central wavelength (CWL) of 830 nm, with a full width at half maximum (FWHM) of 10 nm. This specificity makes it ideal for applications that require a narrow bandwidth, such as fluorescence microscopy or laser spectroscopy. The cut-on wavelength is 825 nm, and the cut-off wavelength is 835 nm, ensuring a high level of transmission within the passband and a sharp roll-off outside of it.
The 65-725 filter features a front and back coating of EDM 65-665, which provides excellent environmental stability and resistance to scratching and abrasion. This coating also enhances the filter's performance by reducing surface reflections and increasing transmission.
The filter is mounted, making it easy to integrate into existing optical systems. The mounting method is not specified in the provided data, but it can be assumed to be a standard mount that ensures secure and stable positioning.