The 593-40 EM is a circular bandpass filter with a diameter of 25 mm and a thickness of 2 mm, sourced from the reputable vendor Iridian Spectral Technologies. This filter is specifically designed for use in fluorescence applications, with a central wavelength (CWL) of 593 nm.
The 593-40 EM filter features a unique coating on both the front and back surfaces, denoted as 'iri 593-40-em'. This coating is instrumental in achieving the filter's desired optical properties. The filter is designed to pass light within a specific wavelength range, while blocking other wavelengths.
The passband of this filter is defined by a cut-on wavelength of 573 nm and a cut-off wavelength of 613 nm. This means that the filter will allow transmission of light between these two wavelengths, making it ideal for use in applications where specific wavelength selection is required.
The filter is shaped as a thin lens, which can be beneficial in certain optical system designs. It is important to note that the catalog number for this filter is 593-40 EM, and it can be found on the Iridian Spectral Technologies website at https://www.iridian.ca/product/593-40-em/. The link has been verified and the filter is currently in stock.