| 書目名稱 | Reflectance Spectroscopy | | 副標題 | Principles, Methods, | | 編輯 | Gustav Kortüm | | 視頻video | http://file.papertrans.cn/825/824685/824685.mp4 | | 圖書封面 |  | | 描述 | Reflectance spectroscopy is the investigation of the spectral composi- tion of surface-reflected radiation with respect to its angularly dependent intensity and the composition of the incident primary radiation. Two limiting cases are important: The first concerns regular (specular) reflection from a smooth surface, and the second diffuse reflection from an ideal matte surface. All possible variations are found in practice between these two extremes. For the two extreme cases, two fundamentally different methods of reflectance spectroscopy are employed: The first of these consists in evaluating the optical constants n (refractive index) and x (absorption index) from the measured regular reflection by means of the Fresnel equations as a function of the wave- A. This rather old and very troublesome procedure, which is length incapable of very accurate results, has recently been modified by Fahren- fort by replacing the air-sample phase boundary by the phase boundary between a dielectric of higher refractive index (n ) and the sample (n ). 1 2 If the sample absorbs no radiation and the angle of incidence exceeds a certain definite value, total reflection occurs. On close optical conta | | 出版日期 | Book 1969 | | 關鍵詞 | Chemical reaction; Reflexionsspektroskopie; adsorption; crystal; diffraction; energy; phase; radiation; reac | | 版次 | 1 | | doi | https://doi.org/10.1007/978-3-642-88071-1 | | isbn_softcover | 978-3-642-88073-5 | | isbn_ebook | 978-3-642-88071-1 | | copyright | Springer-Verlag Berlin-Heidelberg 1969 |
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