A full degree-of-freedom photonic crystal spatial light modulator
| Title: | A full degree-of-freedom photonic crystal spatial light modulator |
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| Authors: | Panuski, Christopher L., Christen, Ian R., Minkov, Momchil, Brabec, Cole J., Trajtenberg-Mills, Sivan, Griffiths, Alexander D., McKendry, Jonathan J. D., Leake, Gerald L., Coleman, Daniel J., Tran, Cung, Louis, Jeffrey St, Mucci, John, Horvath, Cameron, Westwood-Bachman, Jocelyn N., Preble, Stefan F., Dawson, Martin D., Strain, Michael J., Fanto, Michael L., Englund, Dirk R. |
| Publication Year: | 2022 |
| Collection: | Physics (Other) Quantum Physics |
| Subject Terms: | Physics - Optics, Quantum Physics |
| More Details: | Harnessing the full complexity of optical fields requires complete control of all degrees-of-freedom within a region of space and time -- an open goal for present-day spatial light modulators (SLMs), active metasurfaces, and optical phased arrays. Here, we solve this challenge with a programmable photonic crystal cavity array enabled by four key advances: (i) near-unity vertical coupling to high-finesse microcavities through inverse design, (ii) scalable fabrication by optimized, 300 mm full-wafer processing, (iii) picometer-precision resonance alignment using automated, closed-loop "holographic trimming", and (iv) out-of-plane cavity control via a high-speed micro-LED array. Combining each, we demonstrate near-complete spatiotemporal control of a 64-resonator, two-dimensional SLM with nanosecond- and femtojoule-order switching. Simultaneously operating wavelength-scale modes near the space- and time-bandwidth limits, this work opens a new regime of programmability at the fundamental limits of multimode optical control. Comment: 25 pages, 20 figures |
| Document Type: | Working Paper |
| DOI: | 10.1038/s41566-022-01086-9 |
| Access URL: | http://arxiv.org/abs/2204.10302 |
| Accession Number: | edsarx.2204.10302 |
| Database: | arXiv |
| DOI: | 10.1038/s41566-022-01086-9 |
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