1 November 2004 Implementation of Fresnel full complex-amplitude digital holograms
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Abstract
The use of diffractive optical elements (DOEs) is increasing for several industrial applications, such as beam shaping and optical filtering. Most elements modulate the phase of the incoming light or its amplitude, but not both. To overcome this limitation, we developed a full complex-amplitude modulation DOE. We employed well-established integrated circuit fabrication steps to fabricate the devices at relatively low cost and with high precision. Using this approach, the new element's optical performances are improved even for near-field operations. With this device it is possible to obtain the total control of the zeroth order transmitted light, resulting in low-noise reconstructed images.
Luiz Goncalves Neto, Patricia S.P. Cardona, Giuseppe Antonio Cirino, Ronaldo Domingues Mansano, Patrick B. Verdonck, "Implementation of Fresnel full complex-amplitude digital holograms," Optical Engineering 43(11), (1 November 2004). https://doi.org/10.1117/1.1805566
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