| Project ID |
BPN642 |
| Website |
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| Start Date |
Wed 2011-Aug-17 12:47:06 |
| Last Updated |
Tue 2013-Jan-29 21:04:23 |
| Abstract |
Very fast optical beam steering and wave front correction can be achieved by employing phased arrays of lightweight High Contrast Grating (HCG) MEMS mirror etalons. The etalons provide a large phase shift for a small displacement, 100x more than traditional reflective mirror elements. Operating such etalon arrays requires exquisite control of the MEMS mirror displacements. Our aim is to use in-situ stroboscopic interferometric imaging of the etalons to ensure phase accuracy and combat long term-drift, while employing feed-forward electrical input shaping to achieve fast settling time and precise phase tracking in a power-efficient way. |
| Status |
Continuing |
| Funding Source |
DARPA |
| IAB Research Area |
Physical Sensors & Devices |
| Researcher(s) |
Mischa Megens |
| Advisor(s) |
Dave A. Horsley, Ming C. Wu |
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