Results 31 to 40 of about 3,540,237 (277)
Large-scale application of binary subwavelength structures
, 2022 S.148-149We report on the design, fabrication and characterization of large-scale diffractive elements with high diffraction efficiencies, tailored polarization behaviour and small wave-front errors using special binary subwavelength structures.
Freese, W. +6 more
core +1 more source
A Slot-Based Surface Plasmon-Polariton Waveguide With Long-Range Propagation and Superconfinement
IEEE Photonics Journal, 2012 A full-vector spectral element method (SEM) is applied to model and simulate surface plasmon-polariton (SPP) waveguides. Gauss-Lobatto-Legendre (GLL) polynomials are used to construct higher-order basis functions to achieve spectral accuracy.
G. X. Cai +4 more
doaj +1 more source
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.
Daniel H. Raguin +2 more
openaire +1 more source
Subwavelength-Grating Metamaterial Structures for Silicon Photonic Devices
, 2022 2018 European Conference on Optical Communication (ECOC).44th EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION, Roma, Italy. 23-27 Sept. (2018). .-https://www.ecoc2018.org/Segmenting silicon waveguides at the subwavelength scale produce an equivalent ...
González-Andrade, D. +2 more
core +1 more source
Novel Quadruple-Band Microwave Metamaterial Absorber
IEEE Photonics Journal, 2015 In this paper, we report the design, analysis, and simulation of a novel quadrupleband metamaterial absorber at microwave frequencies. The absorber is composed of delicate periodic patterned structures and a metallic background plane, which are separated
Nan Wang +6 more
doaj +1 more source
Arbitrarily-Wide-Band Dielectric Mirrors and Their Applications to SiGe Solar Cells
IEEE Photonics Journal, 2015 The dielectric mirror is an important optical component for optoelectronic devices, passive photonic devices, and solar cells. Unfortunately, the reflection bandwidth of distributed Bragg reflectors (DBRs) and high-index contrast mirrors (HCGs) are ...
Yan Kai Zhong +4 more
doaj +1 more source
Subwavelength Grating Structures in Silicon‐on‐Insulator Waveguides [PDF]
Advances in Optical Technologies, 2008 First implementations of subwavelength gratings (SWGs) in silicon‐on‐insulator (SOI) waveguides are discussed and demonstrated by experiment and simulations. The subwavelength effect is exploited for making antireflective and highly reflective waveguide facets as well as efficient fiber‐chip coupling structures.
Schmid, Jens +9 more
openaire +1 more source
Optimization of moth-eye antireflection schemes for silicon solar cells [PDF]
, 2010 Nanostructured moth-eye antireflection schemes for silicon solar cells are simulated using rigorous coupled wave analysis and compared to traditional thin film coatings. The design of the moth-eye arrays is optimized for application to a laboratory cell (
Boden, Stuart, Bagnall, Darren
core +1 more source
Guiding and Confining Light in Low-Index Circularly Symmetric Waveguides
IEEE Photonics Journal, 2011 A circularly symmetric waveguide with a low-index ring inside the core has been proposed and studied comprehensively. By taking advantage of the azimuthal TM01 mode, the structure can confine light inside the low-index region with very high power ...
Wenfu Zhang +3 more
doaj +1 more source
Passive Metasurface Tweezers for Multi-Scale Orbital Transport and Trapping on Elastic Plates. [PDF]
Adv Sci (Weinh)Passive labyrinthine phase encoding converts single‐channel excitation into localized flexural‐wave vortices with programmable orbital angular momentum. The resulting vortex fields enable cross‐scale particle manipulation, including orbital transport, central confinement, and rotational actuation.
Bi Z +7 more
europepmc +2 more sources