2025/07/02 by Thomas G. Mayerhöfer, Jürgen Popp · 1 voice
Engineering · Materials Science · Physics and Astronomy · #Glass properties and applications #Photonic and Optical Devices #Photorefractive and Nonlinear Optics
paper · doi:10.1177/00037028251352565
openalex publication_date 2025/07/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Some attenuated total reflection (ATR) correction formalisms share the drawback that they can only be applied to materials with relatively low oscillator strength, as they rely on one or another form of the low absorption assumption. In this contribution, we present an iterative formalism that does not suffer from this limitation and can be applied not only to attenuated total reflection spectra but also to spectra acquired under internal reflection conditions at subcritical incidence angles. Its accuracy is primarily limited near the critical angle and Brewster's angle. The formalism is based on the perpendicular component of the wavevector and Fresnel's equations, and it is fully compatible with wave optics. Its application is straightforward, and a corresponding program is available via the Supplemental Material.