Retrieving the refractive index profile of a holographic grating by diffraction experiments
- Author(s)
- Martin Fally, Jürgen Klepp, Mostafa A. Ellabban, Helmut Eckerlebe, Klaus P. Pranzas, Jinxin Guo, Yasuo Tomita
- Abstract
It is well known that in standard diffaction experiments only the amplitudes of structural Fourier components are recovered but phase information is lost. This problem is known as the 'phase problem' in crystallography. In this contribution, we point out how the phase problem of diffraction can be solved in some particular cases by employing multi-wave interference. In the experimental situation described here, we were able to determine the form of the refractive-index profile of a 1-D nanocomposite holographic grating by using a multi-wave coupling analysis of the measured angular dependence of the diffraction efficiencies for a number of diffraction orders.
- Organisation(s)
- Physics of Functional Materials
- External organisation(s)
- Taibah University, Tanta University, Helmholtz-Zentrum Geesthacht - Zentrum für Material- und Küstenforschung, The University of Electro-Communications
- No. of pages
- 6
- DOI
- https://doi.org/10.1117/12.2527317
- Publication date
- 2019
- Austrian Fields of Science 2012
- 103021 Optics
- Keywords
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Applied Mathematics, Electrical and Electronic Engineering, Computer Science Applications
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/retrieving-the-refractive-index-profile-of-a-holographic-grating-by-diffraction-experiments(a5d0e919-03a5-41b1-bfdf-9a313b0ed384).html