Meta-waveguide explained

In photonics, a meta-waveguide is a physical structures that guides electromagnetic waves with engineered functional subwavelength structures.[1] Meta-waveguides are the result of combining the fields of metamaterials and metasurfaces into integrated optics.[2] [3] The design of the subwavelength architecture allows exotic waveguiding phenomena to be explored.[4]

Meta-waveguides can be classified by waveguide platforms or by design methods. If classified by underlying waveguide platform, engineered subwavelength structures can be classified in combination with dielectric waveguides, optical fibers, or plasmonic waveguides. If classified by design methods, meta-waveguides can be classified as either using design primarily by physical intuition, or by computer algorithm based inverse design methods.[5]

Meta-waveguides can provide new degrees of design freedom to the available structural library for optical waveguides in integrated photonics. Advantages can include enhancing the performance of conventional waveguide based integrated optical devices and creating novel device functionalities. Applications of meta-waveguides include beam/polarization splitting, integrated waveguide mode converters, versatile waveguide couplers,[6] lab-on-fiber sensing,[7] nano-optic endoscope imaging,[8] on-chip wavefront shaping,[9] structured-light generations,[10] and optical neural networks.[11] [12] The meta-structures can also be further integrated with van der Waals materials to add more functionalities and reconfigurability.[13] [14]

Notes and References

  1. Meng . Yuan . Chen . Yizhen . Lu . Longhui . Ding . Yimin . Cusano . Andrea . Fan . Jonathan A. . Hu . Qiaomu . Wang . Kaiyuan . Xie . Zhenwei . Liu . Zhoutian . Yang . Yuanmu . 2021-11-22 . Optical meta-waveguides for integrated photonics and beyond . Light: Science & Applications . en . 10 . 1 . 235 . 10.1038/s41377-021-00655-x . 34811345 . 8608813 . 2047-7538.
  2. Web site: Sciences . Chinese Academy of . Allying meta-structures with diverse optical waveguides for integrated photonics and more . 2022-05-03 . phys.org . en.
  3. Cheben . Pavel . Halir . Robert . Schmid . Jens H. . Atwater . Harry A. . Smith . David R. . August 2018 . Subwavelength integrated photonics . Nature . en . 560 . 7720 . 565–572 . 10.1038/s41586-018-0421-7 . 30158604 . 52117964 . 1476-4687.
  4. Li . Zhaoyi . Kim . Myoung-Hwan . Wang . Cheng . Han . Zhaohong . Shrestha . Sajan . Overvig . Adam Christopher . Lu . Ming . Stein . Aaron . Agarwal . Anuradha Murthy. Anu Agarwal . Lončar . Marko . Yu . Nanfang . July 2017 . Controlling propagation and coupling of waveguide modes using phase-gradient metasurfaces . Nature Nanotechnology . en . 12 . 7 . 675–683 . 10.1038/nnano.2017.50 . 28416817 . 1412777 . 1748-3395.
  5. Molesky . Sean . Lin . Zin . Piggott . Alexander Y. . Jin . Weiliang . Vucković . Jelena . Rodriguez . Alejandro W. . November 2018 . Inverse design in nanophotonics . Nature Photonics . en . 12 . 11 . 659–670 . 10.1038/s41566-018-0246-9 . 1801.06715 . 55105919 . 1749-4893.
  6. Meng . Yuan . Liu . Zhoutian . Xie . Zhenwei . Wang . Ride . Qi . Tiancheng . Hu . Futai . Kim . Hyunseok . Xiao . Qirong . Fu . Xing . Wu . Qiang . Bae . Sang-Hoon . 2020-04-01 . Versatile on-chip light coupling and (de)multiplexing from arbitrary polarizations to controlled waveguide modes using an integrated dielectric metasurface . Photonics Research . EN . 8 . 4 . 564–576 . 10.1364/PRJ.384449 . 213576669 . 2327-9125.
  7. Principe . Maria . Consales . Marco . Micco . Alberto . Crescitelli . Alessio . Castaldi . Giuseppe . Esposito . Emanuela . La Ferrara . Vera . Cutolo . Antonello . Galdi . Vincenzo . Cusano . Andrea . March 2017 . Optical fiber meta-tips . Light: Science & Applications . en . 6 . 3 . e16226 . 10.1038/lsa.2016.226 . 30167235 . 6062173 . 2047-7538.
  8. Pahlevaninezhad . Hamid . Khorasaninejad . Mohammadreza . Huang . Yao-Wei . Shi . Zhujun . Hariri . Lida P. . Adams . David C. . Ding . Vivien . Zhu . Alexander . Qiu . Cheng-Wei . Capasso . Federico . Suter . Melissa J. . September 2018 . Nano-optic endoscope for high-resolution optical coherence tomography in vivo . Nature Photonics . en . 12 . 9 . 540–547 . 10.1038/s41566-018-0224-2 . 30713581 . 6350822 . 1749-4893.
  9. Wang . Zi . Li . Tiantian . Soman . Anishkumar . Mao . Dun . Kananen . Thomas . Gu . Tingyi . 2019-08-07 . On-chip wavefront shaping with dielectric metasurface . Nature Communications . en . 10 . 1 . 3547 . 10.1038/s41467-019-11578-y . 31391468 . 6686019 . 2041-1723.
  10. He . Tiantian . Meng . Yuan . Liu . Zhoutian . Hu . Futai . Wang . Rui . Li . Dan . Yan . Ping . Yan . Ping . Liu . Qiang . 2021-11-22 . Guided mode meta-optics: metasurface-dressed waveguides for arbitrary mode couplers and on-chip OAM emitters with a configurable topological charge . Optics Express . EN . 29 . 24 . 39406–39418 . 10.1364/OE.443186 . 34809306 . 243813207 . 1094-4087. free .
  11. Khoram . Erfan . Chen . Ang . Liu . Dianjing . Ying . Lei . Wang . Qiqi . Yuan . Ming . Yu . Zongfu . 2019-08-01 . Nanophotonic media for artificial neural inference . Photonics Research . EN . 7 . 8 . 823–827 . 10.1364/PRJ.7.000823 . 1810.07815 . 173991055 . 2327-9125.
  12. Wu . Changming . Yu . Heshan . Lee . Seokhyeong . Peng . Ruoming . Takeuchi . Ichiro . Li . Mo . 2021-01-04 . Programmable phase-change metasurfaces on waveguides for multimode photonic convolutional neural network . Nature Communications . en . 12 . 1 . 96 . 10.1038/s41467-020-20365-z . 33398011 . 7782756 . 2041-1723.
  13. Meng . Yuan . Feng . Jiangang . Han . Sangmoon . Xu . Zhihao . Mao . Wenbo . Zhang . Tan . Kim . Justin S. . Roh . Ilpyo . Zhao . Yepin . Kim . Dong-Hwan . Yang . Yang . Lee . Jin-Wook . Yang . Lan . Qiu . Cheng-Wei . Bae . Sang-Hoon . 2023-04-21 . Photonic van der Waals integration from 2D materials to 3D nanomembranes . Nature Reviews Materials . en . 1–20 . 10.1038/s41578-023-00558-w . 2058-8437.
  14. Liu . Yuan . Huang . Yu . Duan . Xiangfeng . March 2019 . Van der Waals integration before and beyond two-dimensional materials . Nature . en . 567 . 7748 . 323–333 . 10.1038/s41586-019-1013-x . 1476-4687. free .

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