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Subwavelength structured silicon waveguides and photonic devices

Content Provider	Scilit
Author	Sun, Lu Zhang, Yong He, Yu Wang, Hongwei Su, Yikai
Copyright Year	2020
Abstract	Subwavelength structures such as subwavelength gratings (SWGs) and subwavelength metamaterials are capable of tailoring the optical properties of materials and controlling the flow of light at the nanoscale. The effective indices of the subwavelength structured strip and slab waveguides can be changed in a wide range by choosing an appropriate duty cycle or a filling factor of silicon, which provides an effective method to manipulate the optical field and achieve effective index matching for functional devices. Recent advances in nanofabrication techniques have made it possible to implement subwavelength structures in silicon strip and slab waveguides. Here we review various approaches used to design subwavelength structures and achieve exotic optical responses and discuss how these structures can be used to realize high-performance silicon photonic devices. Both one-dimensional SWG devices and two-dimensional subwavelength metamaterial devices are covered in this review, including subwavelength structure–based polarization handling devices, mode manipulation devices, and building blocks for integrated optical interconnects. Perspectives on subwavelength structured silicon photonic devices are also discussed.
Related Links	https://www.degruyter.com/downloadpdf/journals/nanoph/ahead-of-print/article-10.1515-nanoph-2020-0070/article-10.1515-nanoph-2020-0070.pdf
Ending Page	1340
Page Count	20
Starting Page	1321
ISSN	21928606
e-ISSN	21928614
DOI	10.1515/nanoph-2020-0070
Journal	Nanophotonics
Issue Number	6
Volume Number	9
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	2020-05-01
Access Restriction	Open
Subject Keyword	Nanophotonics Nanotechnology Optics Subwavelength Structure Silicon Photonics Metamaterial Polarization Handling Mode Multiplexing Optical Interconnect Journal: Nanophotonics, Issue- 1-4
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering Biotechnology

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