Journal
OPTICS LETTERS
Volume 39, Issue 7, Pages 1740-1743Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.39.001740
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- Generalitat Valenciana [PROMETEO/2012/021]
- University Jaume I [P1.1B2013-53]
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We show that the amplitude and phase information from a two-dimensional complex field can be synthesized from a phase-only optical element with micrometric resolution. The principle of the method is based on the combination of two spatially sampled phase elements by using a low-pass filter at the Fourier plane of a 4 - f optical system. The proposed encoding technique was theoretically demonstrated, as well as experimentally validated with the help of a phase-only spatial light modulator for phase encoding, a conventional CMOS camera to measure the amplitude of the complex field, and a Shack-Hartmann wavefront sensor to determine its phase. (C) 2014 Optical Society of America
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