Generation of programmable coherent source arrays using spatial light modulators.
We demonstrate and characterize arrays of coherent focused spots generated by writing multiple Fresnel zone plates on optically and electrically addressed modulators. The programmable parameters of the array are its size (number of generated spots) and the transmissivity and focal length of each lens. As expected, phase modulators have a better conversion efficiency than amplitude modulators do.
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A
Marrakchi
S F
SF
Habiby
J R
JR
Wullert Ii