Optical Coherency Matrix Tomography
Abstract
The coherence of an optical beam having multiple degrees of freedom (DoFs) is described by a coherency matrix G spanning these DoFs. This optical coherency matrix has not been measured in its entirety to dateeven in the simplest case of two binary DoFs where G is a 4 4 matrix. We establish a methodical yet versatile approachoptical coherency matrix tomographyfor reconstructing G that exploits the analogy between this problem in classical optics and that of tomographically reconstructing the density matrix associated with multipartite quantum states in quantum information science. Here G is reconstructed from a minimal set of linearly independent measurements, each a cascade of projective measurements for each DoF. We report the first experimental measurements of the 4 4 coherency matrix G associated with an electromagnetic beam in which polarization and a spatial DoF are relevant, ranging from the traditional two-point Youngs double slit to spatial parity and orbital angular momentum modes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 19, 2015
- Accession Number
- AD1015077
Entities
People
- Ayman F Abouraddy
- Bahaa E. A. Saleh
- H. E. Kondakci
- Kumel H. Kagalwala
Organizations
- University of Central Florida