NF785-33 Dia. 25 mm Notch Filter; CWL=785nm; FWHM=33nm

The NF785-33 is a notch filter with a circular base shape, designed and manufactured by Thorlabs. This filter is specifically designed for use with a center wavelength (CWL) of 785nm, making it ideal for applications that require precise filtering within this wavelength range.

The filter has a diameter of 25 mm and a thickness of 3.5 mm, making it compact and easy to integrate into various optical systems. The geometry of the filter is defined by its thin lens shape, which is designed to minimize optical aberrations and ensure optimal performance.

The coating of the filter is a crucial aspect of its design. Both the front and back of the filter are coated with "tho nf785-33", a specialized coating that enhances the filter's performance and durability. This coating is designed to withstand the rigors of regular use, ensuring that the filter maintains its performance over time.

The filter is currently in stock and available for purchase through the Thorlabs website. The catalog number for this filter is NF785-33, and it can be found on the Thorlabs website at https://www.thorlabs.com/thorproduct.cfm?partnumber=NF785-33. The link has been verified and is currently valid, indicating that the filter is available for immediate purchase.