Journal
OPTICS EXPRESS
Volume 22, Issue 16, Pages 18870-18880Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.22.018870
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Funding
- AFOSR [FA9550-13-1-0019]
- DARPA DSO InPho [W911NF-10-1-0404]
- ARO [W911NF-12-1-0263]
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We demonstrate a wavefront sensor that unites weak measurement and the compressive-sensing, single-pixel camera. Using a high-resolution spatial light modulator (SLM) as a variable waveplate, we weakly couple an optical field's transverse-position and polarization degrees of freedom. By placing random, binary patterns on the SLM, polarization serves as a meter for directly measuring random projections of the wavefront's real and imaginary components. Compressive-sensing optimization techniques can then recover the wavefront. We acquire high quality, 256 x 256 pixel images of the wavefront from only 10, 000 projections. Photon-counting detectors give sub-picowatt sensitivity. (C) 2014 Optical Society of America
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