AI Article Synopsis
- The study presents a method to recreate both amplitude and phase of a two-dimensional complex field using just a phase-only optical element with very fine resolution.
- This approach combines two spatially sampled phase elements using a low-pass filter in the Fourier plane of a specific optical system.
- The technique has been both theoretically proven and experimentally tested using a spatial light modulator, a CMOS camera, and a wavefront sensor for measuring the complex field.
Article Abstract
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.
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| http://dx.doi.org/10.1364/OL.39.001740 | DOI Listing |
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