This paper is the first part of an article aimed to present theoretical basis as well as some applications of two infrared reflection techniques: specular reflection and reflection-absorption. It is emphasyzed how the Kramers-Krönig analysis of reflection data can be useful in both retrieving optical constants and making spectral analysis possible. Examples of vitreous, powdered and liquid samples are given.
infrared; specular reflection; Kramers-Krönig analysis
