Index Variation And Scattering In A Holographic Medium

Thomas Stone; Nicholas George; B. D. Guenther

doi:10.1117/12.961664

26 October 1989 Index Variation And Scattering In A Holographic Medium

Thomas Stone, Nicholas George, B. D. Guenther

Proceedings Volume 1136, Holographic Optics II: Principles and Applications; (1989) https://doi.org/10.1117/12.961664
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

In the fabrication of holographic optical elements, it is important to have careful characterization of the recording medium. Hence, we have made measurements of the increment in the index of refraction vs. exposure for DMP-128 manufactured by Polaroid corporation. The results of measurements are presented for a series of holographic diffraction gratings. A novel spectrophotometer technique that provides a simultaneous measure of both thickness and refractive index is described. Data illustrating its use are presented for the holographic photopolymer. The feasibility of filling voids in the processed photopolymer for device applications was demonstrated by construction of a distributed feedback dye laser in a DMP-128 grating. At high spatial frequencies, diffraction efficiency is used to estimate refractive index variations. As an initial finding, we report a rather large modulation in the index of refraction of 0.2 at 1000 cycles/mm.

Citation Download Citation

Thomas Stone, Nicholas George, and B. D. Guenther "Index Variation And Scattering In A Holographic Medium", Proc. SPIE 1136, Holographic Optics II: Principles and Applications, (26 October 1989); https://doi.org/10.1117/12.961664

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