The recent advances in interference filter design has placed these optical devices in the forefront of wavelength selective elements. T. This is especially advantageous when measuring the fluorescence of dyes that do not display a large Stoke's shift. As a result, low levels of fluorescence can be detected with a higher signal to noise ratio. For the user, this translates to less noise and the ability to discern smaller changes in the fluorescence of the sample with more accuracy. Interference filters have a large light aperture and light throughput, perfect for easy detection of the weakest of signals.
Interference filters are inexpensive.
The cost of a filter, which should never need to be replaced, is often less than the cost of the fluorescent probes used in an experiment. To learn more about interference filters, visit our tutorial page . These filter wheels are capable of several modes of high speed operation. In a typical experimental design, the experimenter has the ability to select any or all of 8 excitation and 8 emission wavelengths paired in any combination. Intuitive software and powerful features make this fluorometer easy to own and to operate.