论文信息 - Holographic color projection with additional phase factor to suppress zero diffractive order

Holographic color projection with additional phase factor to suppress zero diffractive order

A method of color projection of 2D images utilizing red, green and blue laser sources and Fourier holograms addressed on a single phase modulator has been reported. High quality rich-colored images were achieved, although the main difficulty in reaching the TV-quality is the presence of a 0th diffractive order. It is inevitably created due to a limited fill factor and phase modulation nonlinearity of the used Spatial Light Modulator (SLM) device. However, in certain conFigureurations the light energy contributing to the spurious diffractive order can be focused in a single point in space and absorbed with an amplitude filter. In this work we present the experimental results of a color projection with the non-diffracted peak shifted outside the viewing range in both transverse directions and along the optical axis.

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