Spectral distortions caused by the electric field standing wave effect were investigated for two commonly used reflective substrates: low-emissivity glass and gold-coated glass. Our analytical calculations showed that spectral distortions may arise for both incoherent and coherent light sources when performing transflectance measurements. We experimentally confirmed our predictions using a commercial mid-infrared quantum cascade laser microscope and an interferometric infrared imaging system.
Revised: June 27, 2017 |
Published: July 1, 2017
Citation
De Vetter B.M., S. Kenkel, S. Mittal, R. Bhargava, and T.P. Wrobel. 2017.Characterization of the structure of low-e substrates and consequences for IR transflection measurements.Vibrational Spectroscopy 91.PNNL-SA-119252.doi:10.1016/j.vibspec.2016.09.001