4 Terms
Contributors in Spectroscopy
Spectroscopy
constructive interference
Chemistry; Spectroscopy
A phenomenon that occurs when two waves occupy the same space and are in phase with each other. Since the amplitudes of waves are additive, the two waves will add together to give a resultant wave ...
collimation
Chemistry; Spectroscopy
The ideal input beam is a cylinder of light. No beam of finite dimensions can be perfectly collimated; at best there is a diffraction limit. In practice the input beam is a cone that is determined by ...
coadding
Chemistry; Spectroscopy
The process of adding interferograms together to achieve an improvement in signal-to-noise ratio.
centerburst
Chemistry; Spectroscopy
The sharp, intense part of an interferogram. The size of the centerburst is directly proportional to the amount of infrared radiation striking the detector.
boxcar truncation
Chemistry; Spectroscopy
With no apodization, all points in an interferogram are given equal weight, up to the edges of the interferogram. If the resolution is less than the smallest linewidth in the spectrum, oscillations ...
baseline correction
Chemistry; Spectroscopy
A spectral manipulation technique used to correct spectra with sloped or varying baselines. The user must draw a function parallel to the baseline, then this function is subtracted from the spectrum.
background spectrum
Chemistry; Spectroscopy
A single beam spectrum acquired with no sample in the infrared beam. The purpose of a background spectrum is to measure the contribution of the instrument and environment to the spectrum. These ...
