Results 11 to 20 of about 453,061 (295)
Field structures and singularities in subwavelength optics [PDF]
A brief overview of the current state of the problem of electromagnetic field singularities arising from the refraction and scattering of light by material objects is given. The discussion begins with caustics arising from ray tracing in geometric optics and consistently moves toward increasing the accuracy of consideration and decreasing the scale ...
Michael I. Tribelsky +1 more
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Subwavelength structures for taper waveguides
Journal of Physics: Conference Series, 2022 Abstract In Photonic Integrated Circuits (PICs) it is often necessary some sort of mismatch adaptation between waveguides of different cross-sections. There are several instances of such a designing constraint, being the vertical coupling between the PIC and an optical fibre probably the most representative of all examples.
Lourenço, Paulo +4 more
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Subwavelength grating metamaterial structures for integrated photonics [PDF]
Smart Photonic and Optoelectronic Integrated Circuits XXII, 2020 We report on our advances on the use of subwavelength metamaterials for silicon photonic devices, including narrowband filters, antennas, polarization handling, on-chip beam forming and sensing.
Antonia Torres-Cubillo +21 more
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Building high-performance integrated optical devices using subwavelength grating metamaterials -INVITED [PDF]
EPJ Web of Conferences, 2021 The use of subwavelength grating structures in silicon waveguides have fuelled the development of integrated optical components with superior performance.
Sánchez-Postigo Alejandro +16 more
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Ag-Yb Alloy-Novel Tunable Plasmonic Material
Photonics, 2021 Metals are commonly used in plasmonic devices because of their strong plasmonic property. However, such properties are not easily tuned. For applications such as spatial light modulators and beam steering, tunable plasmonic properties are essential, and ...
Suetying Ching +3 more
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Subwavelength structured surfaces and their applications [PDF]
SPIE Proceedings, 1993 Subwavelength structured surfaces have a multitude of applications. These include antireflection suppression, fabrication of polarization components, narrowband filters, and phase plates. All of these applications offer advantages over conventional components.
Scott M. Norton +2 more
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Subwavelength structured silicon waveguides and photonic devices
Nanophotonics, 2020 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.
Sun Lu +4 more
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High-Transmission Biomimetics Structural Surfaces Produced via Ultrafast Laser Manufacturing
Biomimetics, 2023 Inspired by periodically aligned micro/nanostructures on biological surfaces, researchers have been fabricating biomimetic structures with superior performance. As a promising and versatile tool, an ultrafast laser combined with other forms of processing
Rui-Zhe Leng +6 more
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Functional analytic methods for discrete approximations of subwavelength resonator systems [PDF]
Pure Appl. Analysis 6 (2024) 873-939, 2021 We survey functional analytic methods for studying subwavelength resonator systems. In particular, rigorous discrete approximations of Helmholtz scattering problems are derived in an asymptotic subwavelength regime. This is achieved by re-framing the Helmholtz equation as a non-linear eigenvalue problem in terms of integral operators.
arxiv +1 more source
Ultra-Compact Sub-Wavelength Grating Polarization Splitter-Rotator for Silicon-on-Insulator Platform
IEEE Photonics Journal, 2016 We designed and fabricated a polarization splitter-rotator (PSR) on a silicon-on-insulator (SOI) platform based on an asymmetric directional coupler. The asymmetric directional coupler consists of a regular strip waveguide and a sub-wavelength grating ...
Yun Wang +6 more
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