Wave Propagation in a Volume Hologram with Multiple Diffraction Gratings
Abstract
In the last 10 years, Bragg diffraction gratings have been developed at CREOL using photo-thermo-refractive (PTR) glass, which is not sensitive to radiation or temperatures to 400 degrees C, and can withstand high-intensity laser beams without damage or change in the Bragg angle. In this work, a new type of Bragg grating, not yet fabricated, is being studied to predict its properties. It is composed of two gratings in the same material, at 90 degrees to each other and 45 degrees to the incident wave. By solving equations that relate to wave propagation through this grating, it was shown that these gratings will provide both high angular selectivity and high spectral selectivity; both of which are unusual for thin reflection holograms. Through the use of these equations and the application of Fourier analysis of these solutions, other characteristics of this grating also were predicted. The report includes 12 briefing charts that summarize the presentation. (12 figures, 5 refs.)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 10, 2004
- Accession Number
- ADA428117
Entities
People
- Steven J. Frederick
Organizations
- Francis Marion University