Polarized upconversion emission at metasurface

Yang, Zhichao; Jin, Dayong

doi:10.1038/s41377-023-01301-4

Cited by 4 publications

(4 citation statements)

References 12 publications

(12 reference statements)

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“…41 Further, the coupling efficiency between the metasurface and waveguide may be improved by leveraging the resonant modes of a metasurface by matching the resonant modes of the metasurface to the guided modes of the waveguide. 42,43 5. METHODS 5.1.…”

Section: Discussionmentioning

confidence: 99%

“…The losses of the waveguides can be mitigated by using hydrogen annealed waveguides for reducing the surface wall roughness of the waveguides . Further, the coupling efficiency between the metasurface and waveguide may be improved by leveraging the resonant modes of a metasurface by matching the resonant modes of the metasurface to the guided modes of the waveguide. , …”

Section: Discussionmentioning

confidence: 99%

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On-Chip Polarization Rotators Using Metasurface

Shahwar,

Kapulainen,

Haatainen

et al. 2024

ACS Omega

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Metasurfaces, with their ability to finely manipulate light properties (e.g., polarization), represent a frontier in optical technology. Here, we report innovative gold-based metasurfaces that are adept at changing the light polarization across a broad range of incident angles. Their expansive acceptance angle facilitates seamless integration with silicon waveguides, culminating in the realization of a novel, compact, broadband, and low-loss on-chip polarization rotator. The demonstrated metasurface devices show polarization conversion efficiencies as high as 98.5% at 1550 nm in the free space measurements. Unlike conventional plasmonic metasurfaces, which lack broadband capabilities, our metasurface-based waveplates show extinction ratios of >15 dB for a 120 nm bandwidth. These metasurfaces are positioned on top of up-reflecting mirrors fabricated in a micrometer-scale silicon-on-insulator platform to demonstrate on-chip polarization rotation. The demonstrated polarization rotator shows an extinction ratio of more than 10 dB for a 100 nm bandwidth. This study marks the first successful demonstration of on-chip polarization manipulation utilizing metasurface integration, heralding significant potential impacts for enhancing the functionality and miniaturization of photonic integrated circuits.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

On-Chip Polarization Rotators Using Metasurface

Shahwar,

Kapulainen,

Haatainen

et al. 2024

ACS Omega

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“…To address this issue, lab‐on‐fiber (LOF) technology has been proposed, aiming to integrate functional materials and specially designed structures with varying optical and mechanical properties into optical fibers. [ 5–8 ] This integration enables the attainment of improved or novel functionalities, bringing a new revolution to the design and application of optical fibers. LOF devices can be roughly divided into three categories: lab‐in‐fiber, lab‐around‐fiber, and lab‐on‐tip according to the location of light‐matter interaction.…”

Section: Introductionmentioning

confidence: 99%

Femtosecond Laser 3D Nano‐Printing for Functionalization of Optical Fiber Tips

Bian,

Hu,

et al. 2024

Laser & Photonics Reviews

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Functionalized optical fiber tips featuring miniature sizes and diverse functions have broken the limitations of traditional optical fiber with fixed shapes and single materials, significantly enriching the application scenarios in communication, sensing, imaging, and other fields. However, the unconventional shape presents challenges in manufacturing arbitrarily sophisticated 3D micro/nano structures on optical fiber tips. Femtosecond laser 3D nano‐printing (FL‐3DNp) technology injects new vitality into the functionalization of fiber tips due to its high‐precision, customizable structure, and real 3D processing abilities, as well as advantages of non‐vacuum, maskless, and plentiful materials. This paper extensively compares the key performance parameters of various micro‐nano manufacturing technologies for functionalizing optical fiber probes and focuses on the FL‐3DNp technology. In addition, the latest research progresses are systematically presented from the perspective of structure and application. Finally, the current research challenges and future development directions in this emerging field are discussed, aiming at providing scientific and industrial guidance for FL‐3DNp in functionalizing optical fibers.

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“…Optical fibers exhibit numerous distinctive properties, such as compact size, lightweight, integrability, remote sensing, and high sensitivity. [17][18][19][20] Optical fiber sensors have found extensive applications in biochemical processes. [21][22][23] For example, Lamarca et al introduced a label-free ultrasensitive U-shaped fiber immunosensor for CIP detection in wastewater.…”

Section: Introductionmentioning

confidence: 99%