Maxwell Fisheye Lens as a Waveguide Crossing for Integrated Photonics

Garnett, Joy; Valentine, Jason

doi:10.1364/cleo_at.2012.jw4a.88

Cited by 3 publications

(2 citation statements)

References 36 publications

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“…For example, it is well known in geometrical optics that Maxwell's fisheye lens can focus rays emanating from a point on the boundary of the lens to a conjugate point on the opposite side [85]. This unique property can be utilized to realize a waveguide crossing for up to eight waveguides with a loss of 0.1 dB and a CT value of −40 dB in simulations [86]. Experimentally, Maxwell's fisheye lens can be built on a silicon slab by designing the geometry of the silicon pillars shown in Figure 1C.…”

Section: Waveguide Crossingsmentioning

confidence: 99%

Subwavelength structured silicon waveguides and photonic devices

Sun

Zhang

et al. 2020

Nanophotonics

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AbstractSubwavelength 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.

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Section: Waveguide Crossingsmentioning

confidence: 99%

Subwavelength structured silicon waveguides and photonic devices

Sun

Zhang

et al. 2020

Nanophotonics

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“…This is not discussed in this paper; the interested reader should see [39]- [43], and references therein, for more information.) The MFE lens has been considered for use as a 0-dB coupler (crossover) [44], [45], as has a more general TrE approach [46], while the half-MFE lens has been investigated for matching waveguides of different dimensions [47] and for antennas [48]- [53].…”

Section: Design Of the Beam-splitting Lensmentioning

confidence: 99%

Generalized Maxwell Fish-Eye Lens as a Beam Splitter: A Case Study in Realizing All-Dielectric Devices From Transformation Electromagnetics

Qin

Foster

Grant

et al. 2017

IEEE Trans. Microwave Theory Techn.

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A 2-D generalized Maxwell fish-eye lens has been fabricated with all-dielectric polymer/ceramic composite materials and evaluated numerically and experimentally. The graded refractive index profile of the lens was discretized into a concentric-ring structure and functioned as a two-way beam splitter. Epoxy composites, with a broad dielectric constant range that can be precisely controlled, were used to cast the lens using a low-cost manufacturing method that can readily accommodate different geometries. The lens was tested with a nearfield microwave imaging system to demonstrate its capability of controlling waves at an operating frequency of 18 GHz. The measured results had some differences from the expected behavior, which are considered in detail and provided some insights into the practical manufacturing and measurement constraints for graded dielectric composites. Possible routes to increase the number of output beams are discussed.

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Physics of elliptical reflectors at large reflection and divergence angles I: Their design for nano-photonic integrated circuits and application to low-loss low-crosstalk waveguide crossing

Hou

Huang

et al. 2013

Optics Communications

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Maxwell Fisheye Lens as a Waveguide Crossing for Integrated Photonics

Cited by 3 publications

References 36 publications

Subwavelength structured silicon waveguides and photonic devices

Subwavelength structured silicon waveguides and photonic devices

Generalized Maxwell Fish-Eye Lens as a Beam Splitter: A Case Study in Realizing All-Dielectric Devices From Transformation Electromagnetics

Physics of elliptical reflectors at large reflection and divergence angles I: Their design for nano-photonic integrated circuits and application to low-loss low-crosstalk waveguide crossing

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