TY - JOUR
T1 - A full degree-of-freedom spatiotemporal light modulator
AU - Panuski, Christopher L.
AU - Christen, Ian
AU - Minkov, Momchil
AU - Brabec, Cole J.
AU - Trajtenberg-Mills, Sivan
AU - Griffiths, Alexander D.
AU - McKendry, Jonathan J.D.
AU - Leake, Gerald L.
AU - Coleman, Daniel J.
AU - Tran, Cung
AU - St Louis, Jeffrey
AU - Mucci, John
AU - Horvath, Cameron
AU - Westwood-Bachman, Jocelyn N.
AU - Preble, Stefan F.
AU - Dawson, Martin D.
AU - Strain, Michael J.
AU - Fanto, Michael L.
AU - Englund, Dirk R.
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Nature Limited.
PY - 2022/12
Y1 - 2022/12
N2 - Harnessing the full complexity of optical fields requires the complete control of all degrees of freedom within a region of space and time—an open goal for present-day spatial light modulators, active metasurfaces and optical phased arrays. Here, we resolve this challenge with a programmable photonic crystal cavity array enabled by four key advances: (1) near-unity vertical coupling to high-finesse microcavities through inverse design; (2) scalable fabrication by optimized 300 mm full-wafer processing; (3) picometre-precision resonance alignment using automated, closed-loop ‘holographic trimming’; and (4) out-of-plane cavity control via a high-speed μLED array. Combining each, we demonstrate the near-complete spatiotemporal control of a 64 resonator, two-dimensional spatial light modulator with nanosecond- and femtojoule-order switching. Simultaneously operating wavelength-scale modes near the space–bandwidth and time–bandwidth limits, this work opens a new regime of programmability at the fundamental limits of multimode optical control.
AB - Harnessing the full complexity of optical fields requires the complete control of all degrees of freedom within a region of space and time—an open goal for present-day spatial light modulators, active metasurfaces and optical phased arrays. Here, we resolve this challenge with a programmable photonic crystal cavity array enabled by four key advances: (1) near-unity vertical coupling to high-finesse microcavities through inverse design; (2) scalable fabrication by optimized 300 mm full-wafer processing; (3) picometre-precision resonance alignment using automated, closed-loop ‘holographic trimming’; and (4) out-of-plane cavity control via a high-speed μLED array. Combining each, we demonstrate the near-complete spatiotemporal control of a 64 resonator, two-dimensional spatial light modulator with nanosecond- and femtojoule-order switching. Simultaneously operating wavelength-scale modes near the space–bandwidth and time–bandwidth limits, this work opens a new regime of programmability at the fundamental limits of multimode optical control.
UR - http://www.scopus.com/inward/record.url?scp=85142778550&partnerID=8YFLogxK
U2 - 10.1038/s41566-022-01086-9
DO - 10.1038/s41566-022-01086-9
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AN - SCOPUS:85142778550
SN - 1749-4885
VL - 16
SP - 834
EP - 842
JO - Nature Photonics
JF - Nature Photonics
IS - 12
ER -