To accomplish the first objective, a glass-plate polarizer was constructed. The optical system consisted of standard holographic recording materials, including an isolated platform, optical mounts, a helium-neon laser, processing chemistry and a high resolution silver-halide holographic emulsion on polymer and glass substrates.
The desired optical system was designed using a method known as selective subtraction via a glass-plate polarizer. Based on Brewsters theory of reflection, this polarizer systematically eliminated light of undesired polarization. The second objective was achieved by preswelling the holographic emulsion in a process known as presensitization. This technique utilizes the chemical triethanolomine (TEA), which is absorbed into the emulsion and later determines the reconstruction frequency of the holographic optical element.
It was determined that the experimental methods utilized were an innovative and effective way to selectively polarize light, based on its initial wavelength and state of polarization. The polarizing holographic optical elements performed comparably with current polarizing technology.
A holographic polarizer was produced that selectivley polarizes light based on its initial state of polarization and wavelength.
Science Fair Project done By Ray Ramirez