# Spectroscopy Resolution

1. Apr 17, 2008

### Zero-Toleranc

Hello there. I have a small problem trying to calculate the resolution of a DFTS (Dispersive Fourier Transform Spectroscopy), which is very similar to Michalson Interferometer or FTS (Fourier Transform Interferometer). I know it has something to do with the scanning distance of the delay arm and the amount of data points aquired i.e. 4000. But I need it in frequency. E.g. when people talk about the resolution the consider the resolution in MHz to be very good like the TDS system has, but I'm working with the DFTS interferometer and I just need to determine the resolution for that in Frequency.

Thanks

Kas