Subwavelength waveguide

Author: fqkl

August undefined, 2024

WebOn the other hand, plasmonic waveguides can provide subwavelength conﬁnement by storing optical energy in electron oscillations within dissipative metallic regions2–13,18. This, Web29 Aug 2024 · Subwavelength-grating metamaterial structures were recently implemented in silicon waveguides 24, 25, 26, allowing accurate lithographic control over the distribution …

Modes of Subwavelength Plasmonic Slot Waveguides - University …

WebWe propose a new method for mode conversion and coupling between an optical fiber and a sub-micrometer waveguide using a subwavelength grating (SWG) with a period less than … columbia sc to daytona beach shores

Subwavelength Broadband Perfect Absorption for …

WebSWGs offer high reflectivity for a broad spectral region with significant phase changes; this property can be used to engineer the beam. As shown in Fig. 1, the SWG grating is a set of silicon grooves with period=0.76um on a quartz substrate. It is illuminated at normal incident with a TM–polarized plane wave. WebFor this proposed ultra-sharp subwavelength grating multimode waveguide bend (SMWB) with a 90° bending angle, the theoretical excess losses for the TE 0, TE 1, and TE 2 modes are 0.1–0.3 dB, 0.18–0.22 dB, and 0.3–0.5 dB, respectively, in a wavelength band of 1500–1600 nm. Meanwhile, inter-mode crosstalks are very low (less than −30 ... Webwaveguide. On the other hand, plasmonic waveguides can provide subwavelength conﬁnement by storing optical energy in electron oscillations within dissipative metallic … dr tiffany spaulding rigby idaho

Subwavelength waveguide grating for mode conversion …

Subwavelength waveguide structures for optical interconnects

WebWe propose a silicon waveguide-fiber grating coupler that uses a subwavelength microstructure to achieve a continuously variable grating strength yet can be fabricated using only a single etch step. By adjusting the subwavelength microstructure at every point along the grating, the grating coupler can be optimized to give high field overlap with the … Web29 Mar 2012 · The objective of this article is to review the progress of subwavelength or deep subwavelength plasmonic waveguides, and fabrication techniques of plasmonic materials. 1. Introduction. Plasmonics, a name coined for surface-plasmon- (SP-) related photonics, has inspired booming research interests since late 1990s. dr tiffany tamWebSubwavelength waveguide loss measurement before and after HF vapour phase etching. The transmission mea-surements are normalized to the transmission of the shortest waveguide in the respective section. The green (dashed) line is a linear t to measured data (diamond symbols) before columbia sc to due west sc

"Web9 Oct 2014 · The gain of a backward wave mode of the CeSRR-loaded waveguide interacting with an electron beam is calculated by two methods: by using the HFSS model and … " - Subwavelength waveguide

Subwavelength waveguide

Web1 Aug 2024 · The best sensitivity of the design is obtained at 1000 nm/RIU by utilizing a subwavelength grating double slot waveguide of period 300 nm. The numerical study is conducted via 2D and 3D finite ... Web1 Nov 2024 · Abstract: Subwavelength grating (SWG) waveguides in silicon-on-insulator are emerging as an enabling technology for implementing compact, high-performance …

Did you know?

Web24 Dec 2024 · Subwavelength structured waveguides provide tailorable optical properties that can be leveraged to overcome bandwidth limitations in a wide range of photonic devices. In this invited talk, we ... Web12 Apr 2024 · To ensure the ventilation in the duct, as well as to simplify the design process, only monopolar resonators loaded to the waveguide are considered. In this scenario, …

WebThe transmission characteristics of the electromagnetic wave are numerically investigated in two-dimensional compound plasmonic structures composed of two straight subwavelength metal-insulator-metal (MIM) waveguides and a ring resonator. The two straight MIM waveguides situate on both sides of the ring resonator, and the MIM … Web19 Dec 2024 · Subwavelength grating (SWG) metamaterial waveguides and ring resonators on a silicon nitride platform are proposed and demonstrated. The SWG waveguide is engineered such that a large overlap of 53% of the Bloch mode with the top cladding material is achieved, demonstrating excellent potential for applications in evanescent field …

Web9 Jul 2015 · We report our advances in development of subwavelength engineered waveguide structures. This unique NRC patented technology [1,2] allows synthesis of a metamaterial with an unprecedented control of material properties, constituting a powerful tool for a designer of photonic integrated circuits. We have demonstrated a number of … Web15 Aug 2024 · A subwavelength waveguide with air cladding is designed using the backbone materials of Poly (methyl methacrylate) (PMMA), the diameter of which is 250 μ m, and the default operating frequency ( f 0) is 0.6 THz ( λ = 500 μ m). Fig. 1 shows the variation curve of normalized power fraction with frequencies ranged from 0.3 THz to 1 THz.

Web30 Sep 2014 · A sub-wavelength patterned silicon surface with a reflectivity below 3% over the 200–1000 nm spectral band was reported in 62 for a grating with a pitch of nm and a …

WebThe Lumerical Sub-Wavelength Model (LSWM) can be used to model nanoscale structures with planar layers and/or periodic patterning as optical property in Ansys Speos or Zemax OpticStudio for optical simulation. Typical examples of these structures are coatings and diffraction gratings with feature sizes comparable or smaller than the wavelength ... columbia sc to fort lee vaWeb1 Sep 2024 · A compact asymmetrical directional coupler (ADC), which is composed of a strip and a tilted subwavelength gratings (TSWG) waveguide, is proposed to realize a broadband and high-extinction-ratio polarization beam splitter (PBS). In addition to conventional SWG structural parameters, such as its period and duty cycle, a TSWG … dr tiffany tamseWeb22 Nov 2024 · The advancement of subwavelength meta-structured waveguides can not only extend meta-optics physics to the realm of guided electromagnetic waves, but also … dr tiffany tam anaesthetisthttp://terahertz.tju.edu.cn/storage/papers/Paper2024-20.pdf columbia sc to daytona beachWeb21 Sep 2024 · This work designs, fabricate and characterize silicon subwavelength grating waveguide microring resonators with an As20S80 cladding, and shows that the chalcogenide glass can be thermally reflowed to remove air gaps inside theCladding, resulting in a highly conformal structure. columbia sc to fripp island scWeb28 May 2024 · We presented a novel design of a microring resonator based on a subwavelength grating (SWG) double-slot waveguide (WG) due to its enhanced sensitivity. The paper is divided into two parts. In the first part, we studied and compared the modal characteristics of SWG ridge, single-slot and double-slot WGs. columbia sc to flagler beach flWeb11 Apr 2024 · The three-dimensional (3-D) schematic, top view and cross-sectional view of our designed device are shown in Figs. 1 (a)-1(c). The width and thickness of the TSWGS … dr tiffany spencer