Topic
Total external reflection
About: Total external reflection is a research topic. Over the lifetime, 829 publications have been published within this topic receiving 22213 citations.
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01 Jan 1991
TL;DR: In this article, the authors describe several x-ray diffraction techniques which have been found to be very useful for characterizing the structure of magnetic multilayers and superlattices.
Abstract: In this paper we describe several x-ray diffraction techniques which we have found to be very useful for characterizing the structure of magnetic multilayers and superlattices. Examples are given from several of the magnetic and non-magnetic materials studied recently with these techniques.
01 Apr 1997
TL;DR: Reflection of light from gyrotropic uniaxial film with arbitrary axis orientation accounting or repeated reflections is investigated by using the covariant method for an oblique incidence of light, for different refractive indices of ambient and substrate and it is solved numerically as mentioned in this paper.
Abstract: Reflection of light from gyrotropic uniaxial film with arbitrary axis orientation accounting or repeated reflections is investigated. This problem is considered by using the covariant method for an oblique incidence of light, for different refractive indices of ambient and substrate and it is solved numerically. As a result diagonal and off-diagonal components of the reflectance matrice are calculated. Dependences of the reflection coefficients as a function of the orientation of the optical axis and gyration tenser components are discussed. The gyrotropy manifestation in anisotropic films such as changing the symmetry of the system, appearance of off-diagonal reflection coefficients in symmetrical optical orientations are shown. Such characteristic dependences makes possible the experimental determination of gyrotropy with reflected light by using ellipsometric measurements.© (1997) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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24 Feb 2012
TL;DR: In this paper, a fiber for sensor which successfully broadens the range of measurable physical quantities at low cost is provided, and the reflection spectrum of the fiber as a whole forms an approximately triangular shape with reflection intensity progressively increasing from the short wavelength side to the long wavelength side.
Abstract: Provided is a fiber for sensor which successfully broadens the range of measurable physical quantities at low cost. In the core (11) of the fiber for sensor (10), an FBG (20) having a plurality of reflective regions (21 to 2n) is formed, and each reflection region (21 to 2n) respectively contains a plurality of lattice parts (30) formed in the core (11). In each reflection region (21 to 2n), the grating period, which is the interval between gratings (30), is period Λ1 to Λn, which are different to one another, and the reflection spectrum of reflection regions 21 to 2n have different parabolic shapes. Of the reflection spectra of the reflection regions 21 to 2n, the adjoining reflection spectra in the wavelength direction overlap with one another. As a consequence, the reflection spectrum (20) of the FBG (20) as a whole forms an approximately triangular shape with reflection intensity progressively increasing from the short wavelength side to the long wavelength side.
TL;DR: Using a heater and bolometer as source and detector, the reflection of a pulsed beam of phonons at the free surface of liquid4He has been measured for angles of incidence between 30° and 80° as discussed by the authors.
Abstract: Using a heater and bolometer as source and detector, the reflection of a pulsed beam of phonons at the free surface of liquid4He has been measured for angles of incidence between 30° and 80°. The reflection appears to be specular within the accuracy of the experiment. The reflection coefficient is unity within the experimental error; the weighted mean value is 1.001±0.025.