Subwavelength grating waveguide
WebIn this paper, an on-chip polarizer passing the transverse-magnetic mode and a polarization beam splitter are proposed. The polarizer achieves an extinction ratio exceeding 20 dB within a spectral range from 1500 nm to 1610 nm, and has a value of 24dB at 1550 nm with a coupling efficiency of 84%. WebWe focused particularly on fiber-to-chip coupling by means of subwavelength structured surfaces such as line gratings or photonic crystals. With these grating couplers one ... fabricate the grating. For a waveguide thickness h of 220nm and a silicon overlay thickness o of 240nm the simulated efficiency was 64%. We optimized this grating type ...
Subwavelength grating waveguide
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Web14 Apr 2024 · In grating-based antenna areas, there are 16 parallel waveguides (380 nm × 220 nm), and the spacing between adjacent waveguides is 1.62 μm, the grating period is 800 nm, the duty ratio is 0.5 ... Web29 Aug 2024 · Subwavelength-grating metamaterial structures were recently implemented in silicon waveguides 24,25,26, allowing accurate lithographic control over the …
Web1 May 2024 · We propose, design, fabricate and characterize a subwavelength grating slot (SWGS) waveguide on silicon platform at short-wave infrared (SWIR) wavelength of 2 μm. … WebExploiting new wavebands became a crucial problem within the optical communications community. The 2 μm spectral range between near-infrared and mid-infrared held advantages of low transmission loss and broad gain bandwidth, which made it a promising candidate for the next window of free space laser and optical fiber communications.
Web18 May 2024 · To provide subwavelength confinement and realize light manipulation on nanoscale devices, plasmonic waveguides based on surface plasmon polarizations (SPPs) wave have been researched a lot [21,22,23,24].To further reduce the high optical loss and increase propagation length, hybrid plasmonic waveguides, constructed by surface … Web11 Apr 2024 · Lumerical analyzes and simulates optical component designs at the subwavelength scale (nanoscale) such as for metalenses and photonic integrated circuits. ... waveguides. As discussed in a previous blog, diffractive gratings are periodic optical structures that scatter incoming plane waves into outgoing plane waves called grating …
Web13 Sep 2010 · Subwavelength grating waveguides in silicon-on-insulator are fabricated with a single etch step and allow for flexible control of the effective refractive index of the …
Web6 Feb 2013 · Subwavelength Grating Waveguide Design Rules for Integrated Photonics The 9th International Congress on Advanced Electromagnetic … brother jon\u0027s bend orWebface mode, such as a slab waveguide mode in close proxim-ity to the grating.5 To illustrate the basic concept, we first simulate the transmission grating structure shown in Fig. 1 a , consisting mode. We simulate the transmission of light through this structure using a finite element method program.15 To best brother justus addressWebFortunately, the subwavelength grating (SWG) assisted suspended Si waveguide has been proved to be a viable solution to solve this problem and can fully exploit the transparency … brother juniper\u0027s college inn memphisWeb3 Aug 2024 · Subwavelength-Grating Metamaterial Structures for Silicon Photonic Devices. Abstract: Segmenting silicon waveguides at the subwavelength scale produce an … brother kevin ageWeb5 May 2016 · Subwavelength grating (SWG) waveguide is an intriguing alternative to conventional optical waveguides due to the extra degree of freedom it offers in tuning a … brother justus whiskey companyWeb24 Jul 2024 · The SWGS waveguide is characterized by the merging of a slot structure and a subwavelength grating (SWG) structure. The mode guiding mechanism (SWG slot mode) … brother keepers programWeb12 Jan 2024 · To showcase this concept, we demonstrate guiding of visible light in the wavelength range of 550–650 nm with losses down to 6 dB/cm using silicon gratings that … brother jt sweatpants