MF434-17 25 mm Dia. CFP Excitation Filter; CWL=434nm; BW=17nm

The MF434-17 is a circular bandpass filter with a diameter of 25 mm and a thickness of 5 mm, designed for use in optical systems. This filter is sourced from Thorlabs, a reputable vendor known for its high-quality optical components.

The MF434-17 is specifically designed for CFP (Cyan Fluorescent Protein) excitation, with a central wavelength (CWL) of 434 nm and a bandwidth (BW) of 17 nm. This means it allows light within a narrow range of wavelengths around 434 nm to pass through while blocking other wavelengths. This feature makes it ideal for applications that require precise wavelength selection, such as fluorescence microscopy.

The filter's coating is another notable feature. Both the front and back surfaces are coated with Tho MF434-17, a proprietary coating developed by Thorlabs. This coating enhances the filter's performance by reducing reflection and increasing transmission, thereby improving the overall efficiency of the optical system.

The MF434-17's physical data includes a cut-on wavelength of 425.5 nm and a cut-off wavelength of 442.5 nm. This means that it begins to transmit light at 425.5 nm and stops transmitting at 442.5 nm. This information is crucial for designing optical systems as it helps in determining the filter's placement within the system.

In terms of shape, the MF434-17 follows a Thin Lens design, which is beneficial for applications that require a compact and lightweight optical system. This filter is currently in stock and available for immediate use.