Band Position to Frequency Converter
If the speed of the moving mirror (scanning speed) and the laser wavelength are known, the position of a band in the infrared spectrum can be converted to real frequencies and vice versa.
This small calculator is particularly useful to determine the optimal Scanning Speed for a measurement in case there is a fixed frequency noise appearing in the spectrum. By changing the Scanning Speed, the noise can be moved into a spectral region where it doesn’t disturb the measurement of the particular sample.
Formula: Frequency [Hz] = (BandPosition [cm-1] * ScannerSpeed [Hz]) / LaserFrequency [cm-1]