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- Absorption (1)
- Far-infrared absorption measurements (1)
- Far-infrared spectra (1)
- Finite impulse response filters (1)
- Infrared spectroscopy (1)
- Interference (1)
- Interference fringes (1)
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Interference fringes in the far-infrared spectra of thin films are the result of the coherent adding up of waves and can influence the spectral interpretation by concealing smaller features. A number of methods have been developed in order to eliminate such oscillating features from the transmittance spectrum. The paper critically evaluates the total transmission-reflection technique and applies the method to quantify the spectra of different polymer films.