Subwavelength grating theory

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August undefined, 2024

WebBy locally controlling the period and direction of the grating, we show that any desired polarization can be achieved. The methods presented in this paper are generic to any … Web11 Apr 2024 · A sub-wavelength grating has been elaborately designed to enhance the absorption of the monolayer graphene at λ = 1.55 μm based on the coupled leaky mode …

From Quasi-Perfect to Broadband Sound Diffusion Using …

WebAn ultra-broadband mode splitter is proposed based on the phase controlling of the bridged subwavelength grating (BSWG) waveguides. An asymmetric directional coupler composed of two BSWG waveguides with an identical waveguide-width but two different bridge-widths is introduced to split the TM0 and TM1 modes based on the mode-sensitive phase … Web11 Apr 2024 · Assisted by a tapered subwavelength-grating waveguide and a slot waveguide, the working bandwidth of the directional-coupler-based PBS covers the entire O-, E-, S-, C-, L- and U-bands and the ... how many weeks since 10/21/22

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Web11 Apr 2024 · The excitation of SPPs causes to enhance the field proximate to the surface of grating. The SPPs only excite when the incoming photon couples to electron density oscillation (propagating along the metal surface) if the wave vector (momentum) of both matches while coupling depends on a specific incidence angle and wavelength [20, … Web12 Apr 2024 · Since the discovery of extraordinary optical transmission through subwavelength hole arrays perforated in metal films [], optical field diffraction by small apertures has been intensively studied from both the theoretical and application aspects.One of the interesting results is the light beaming from a subwavelength aperture … WebSubwavelength grating filtering devices Junjia Wang,1* Ivan Glesk,2 and Lawrence R. Chen1 1 Department of Electrical and Computer Engineering, McGill University, ... In theory, the … how many weeks since 10/27/2022

Subwavelength Grating Structure Synopsys

Investigation of geometrical effects of antireflective subwavelength …

Web1 Jul 1998 · The effective-medium-theory predictions are carefully validated with exact electromagnetic theories for slanted and unslanted sinusoidally modulated volume … Web22 Sep 2024 · Metasurface absorbers are already used in many laser applications. To achieve laser stealth, a dual-band guided-laser absorber is presented in this paper. The absorber is composed of periodic silicon squares on a silicon film and a nickel layer. Under normal incidence, the absorber has two absorption peaks at wavelengths of 1.55 μm and … how many weeks since 10/31/2022Web1 Jun 2024 · The theory of radiation diffraction on gratings has now been developed quite fully (see, for example, []).Since the scalar diffraction theory cannot be applied to … how many weeks since 1/10/22

"Web7 Aug 2024 · In this work, we experimentally demonstrate, for the first time, slow light in subwavelength grating waveguides on the silicon-on-insulator platform. We present a … " - Subwavelength grating theory

Subwavelength grating theory

Waveguide sub‐wavelength structures: a review of principles and ...

Web1 Aug 1993 · The term subwavelength structured (SWS) surface describes any surface that contains a subwavelength-period grating or gratings. The grating may be of any type … Web24 Apr 2001 · 104 On the effective medium theory of subwavelength periodic structures Philippe Lalanne, Dominique Lemercier-Lalanne (Journal of Modern Optics 1996) ... 299 …

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WebA high-performance polarizing beam splitter (PBS) is demonstrated by using asymmetrical directional couplers on a 220nm-thick silicon-on-insulator (SOI) photonics platform. The extinction ratio of the PBS with cascaded directional couplers is > > Web1 Apr 2024 · Download Citation On Apr 1, 2024, Dong Zhang and others published Ultra-high-enhancement-factor integrated long-wave infrared gas sensor based on the tapered sub-wavelength grating slot ...

WebA dielectric subwavelength diffraction grating structure is designed and fabricated in order to enhance fluorescence-based detection of biomolecules. Two separate phenomena, enhancement of the local … Web29 Aug 2024 · Subwavelength-grating metamaterial structures, their main operation principles and their implementation in integrated photonic devices are reviewed.

WebWorked in the cleanroom (10K) for the fabrication of one of the components used in the wavelength selective switching (WSS) - Photolithography processes Currently, working on the... Web24 Apr 2007 · Theory of electromagnetic wave transmission through metallic gratings of subwavelength slits ... we derive an interpretation from a theory that deals with emerging …

WebA significant interest in combining plasmonics and magnetism at the nanoscale gains momentum in both photonics and magnetism sectors that are concerned with the resonant enhancement of light-magnetic-matter interaction…

Web30 Sep 2014 · The electromagnetic properties of the periodic structures considered here are fully described by the theory developed for photonic crystals 27. However, for the purpose … how many weeks since 11/01/22WebThis is the first part in a series of two papers that are concerned with the quantitative analysis of the electromagnetic field enhancement and anomalous diffraction by a … how many weeks since 10/6/22WebFirst implementations of subwavelength gratings (SWGs) in silicon-on-insulator (SOI) waveguides are discussed and demonstrated by experiment and simulations. The … how many weeks since 11/1/22Webtwo dimensional array formed by subwavelength Au patches, exhibiting a strong collective electromagnetic resonance in the visible regime. This resonance is found to be sensitive only to the dimensions of the patches and insensitive to the incident angle and polarization and to the spacing between patches. Theory, simulations, and experiments ... how many weeks since 11/14/22WebSubwavelength dielectric gratings are widely applied in the phase and polarization manipulation of light. However, the dispersion of the normal dielectric gratings is not flat while their ... how many weeks since 10/31/22Web13 Jul 2024 · The other one is silicon subwavelength-structured waveguides (SSWGs), such as subwavelength-grating (SWG) waveguides [11,12,13], in which the equivalent refractive … how many weeks since 11/16/2022Webgrating, red laser pointer, aspheric lens, 1" diameter acrylic sphere, and dye solution). With these parts and ... structures and non-linear metal-dielectic subwavelength waveguides / A.R. Davoyan, I.V. Shadrivov and Yu. S. ... optical theory taught in introductory physics texts and advanced books on lens design. Providing the background how many weeks since 11/21/22