All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial

The exponential growth of telecommunications bandwidth will require next generation optical networks, where multiple spatial information channels will be transmitted in parallel. To realise the full potential of parallel optical data channels, fast and scalable multichannel solutions for processing of optical data are of paramount importance. Established solutions based on the nonlinear wave interaction in photorefractive materials are slow. Here we experimentally demonstrate all-optical logical operations between pairs of simulated spatially multiplexed information channels using the coherent interaction of light with light on a plasmonic metamaterial. The approach is suitable for fiber implementation and—in principle—operates with diffraction-limited spatial resolution, 100 THz bandwidth, and arbitrarily low intensities, thus promising ultrafast, low-power solutions for all-optical parallel data processing.

[1]  S. Randel,et al.  Breakthroughs in Photonics 2012: Space-Division Multiplexing in Multimode and Multicore Fibers for High-Capacity Optical Communication , 2013, IEEE Photonics Journal.

[2]  Naomi J. Halas,et al.  Coherent modulation of propagating plasmons in silver-nanowire-based structures. , 2011, Small.

[3]  M. Klein,et al.  Beam coupling in undoped GaAs at 1.06 microm using the photorefractive effect. , 1984, Optics letters.

[4]  E. Knill,et al.  A scheme for efficient quantum computation with linear optics , 2001, Nature.

[5]  Niloy K. Dutta,et al.  High-speed all-optical encryption and decryption based on two-photon absorption in semiconductor optical amplifiers , 2015, IEEE/OSA Journal of Optical Communications and Networking.

[6]  Robert Magnusson,et al.  Measurement and modeling of a complete optical absorption and scattering by coherent surface plasmon-polariton excitation using a silver thin-film grating. , 2012, Physical review letters.

[7]  Eric Plum,et al.  Coherent control of Snell's law at metasurfaces. , 2014, Optics Express.

[8]  Broadband perfect absorption of ultrathin conductive films with coherent illumination: Superabsorption of microwave radiation , 2014, 1406.1847.

[9]  W. T. Chen,et al.  A combinatorial approach to metamaterials discovery , 2010, 1009.0391.

[10]  Lihong V. Wang,et al.  Time-reversed ultrasonically encoded optical focusing into scattering media , 2010, Nature photonics.

[11]  J. Dowling.  Quantum optical metrology – the lowdown on high-N00N states , 2008, 0904.0163.

[12]  D. Bergman,et al.  Coherent control of femtosecond energy localization in nanosystems. , 2002, Physical review letters.

[13]  Nasser Peyghambarian,et al.  Direct observation of orientation limit in a fast photorefractive polymer composite , 1999 .

[14]  Eric Plum,et al.  Spatial optical phase-modulating metadevice with subwavelength pixelation. , 2016, Optics express.

[15]  Cheng-Yuan Chang,et al.  Enhancing Optical-CDMA Confidentiality With Multicode-Keying Encryption , 2015, Journal of Lightwave Technology.

[16]  S. Barnett,et al.  Quantum optics of lossy beam splitters , 1998 .

[17]  Allard Mosk,et al.  Active spatial control of plasmonic fields , 2011 .

[18]  Nikolay I. Zheludev,et al.  Coherent control of optical polarization effects in metamaterials , 2015, Scientific Reports.

[19]  N. Zheludev,et al.  Coherent control of optical activity and optical anisotropy of thin metamaterials , 2013, 1312.0414.

[20]  Nikolay I. Zheludev,et al.  Controlling light-with-light without nonlinearity , 2012, Light: Science & Applications.

[21]  Peter J. Winzer,et al.  Making spatial multiplexing a reality , 2014, Nature Photonics.

[22]  J. Jeffers,et al.  Coherent perfect absorption in deeply subwavelength films in the single-photon regime , 2015, Nature Communications.

[23]  L. Nelson,et al.  Space-division multiplexing in optical fibres , 2013, Nature Photonics.

[24]  Peter Günter,et al.  Holography, coherent light amplification and optical phase conjugation with photorefractive materials , 1982 .

[25]  M. Z. Zha,et al.  Reduced KNbO3-crystals for fast photorefractive nonlinear optics , 1987, Topical Meeting on Photorefractive Materials, Effects, and Devices.

[26]  Xiaoliang Ma,et al.  Ultrathin broadband nearly perfect absorber with symmetrical coherent illumination. , 2012, Optics express.

[27]  H. Takara,et al.  Dense Space Division Multiplexed Transmission Over Multicore and Multimode Fiber for Long-haul Transport Systems , 2016, Journal of Lightwave Technology.

[28]  João Valente,et al.  Two-dimensional control of light with light on metasurfaces , 2016, Light: Science & Applications.

[29]  David R. Smith,et al.  Terahertz compressive imaging with metamaterial spatial light modulators , 2014, Nature Photonics.

[30]  Sukosin Thongrattanasiri,et al.  Complete optical absorption in periodically patterned graphene. , 2012, Physical review letters.

[31]  Nikolay I. Zheludev,et al.  Controlling light with light using coherent metadevices: all-optical transistor, summator and invertor , 2014, Light: Science & Applications.

[32]  J. Teng,et al.  Optically reconfigurable metasurfaces and photonic devices based on phase change materials , 2015, Nature Photonics.

[33]  Nikolay I. Zheludev,et al.  Ultrafast all-optical switching via coherent modulation of metamaterial absorption , 2014 .

[34]  Wai Lam Chan,et al.  A spatial light modulator for terahertz beams , 2009 .

[35]  J. Jeffers,et al.  Coherent absorption of N00N states , 2016, 2016 Conference on Lasers and Electro-Optics (CLEO).

[36]  Yidong Chong,et al.  Time-Reversed Lasing and Interferometric Control of Absorption , 2011, Science.