Results 31 to 40 of about 486,399 (248)
Highly dispersive slot waveguides
Optics Express, 2009 We propose a slot-waveguide with high dispersion, in which a slot waveguide is coupled to a strip waveguide. A negative dispersion of up to -181520 ps/nm/km is obtained due to a strong interaction of the slot and strip modes. A flat and large dispersion is achievable by cascading the dispersive slot-waveguides with varied waveguide thickness or width ...
Lin, Zhang +4 more
openaire +2 more sources
IEEE Photonics Journal, 2021 We present a systematical comparative research on the modulation performance and the optimization of the multi-slot waveguide modulator at the telecom wavelength of 1.55 μm.
Yanhua Sha +4 more
doaj +1 more source
Nonlinear plasmonic slot waveguides
Optics Express, 2008 We study nonlinear modes in subwavelength slot waveguides created by a nonlinear dielectric slab sandwiched between two metals. We present the dispersion diagrams of the families of nonlinear plasmonic modes and reveal that the symmetric mode undergoes the symmetry-breaking bifurcation with the energy primarily localized near one of the interfaces.
Davoyan, Arthur +2 more
openaire +4 more sources
Optics Express, 2020 The reported chalcogenide (ChG) rectangular waveguide sensors with a small evanescent field need a large waveguide length to obtain an enhanced light-gas interaction effect.
Mingquan Pi +8 more
semanticscholar +1 more source
Optics Express, 2015 We numerically analyzed the power-coupling characteristics between a high-index-contrast dielectric slot waveguide and a metal-insulator-metal (MIM) plasmonic slot waveguide as functions of structural parameters. Couplings due mainly to the transfer of evanescent components in two waveguides generated high transmission efficiencies of 62% when the slot
Deqing, Kong, Makoto, Tsubokawa
openaire +2 more sources
Transmission-Efficient Structures of Bent and Crossing Silicon Slot Waveguides
IEEE Photonics Journal, 2013 We present transmission-efficient bent and crossing silicon slot waveguides for compact silicon slot waveguide-based circuits. To begin with, using the 3-D vector finite-element method, we investigate the transmission characteristics of a bent silicon ...
Yuhei Ishizaka +2 more
doaj +1 more source
Wideband Slot Array Antenna Fed by Open-Ended Rectangular Waveguide at W-Band
IEEE Antennas and Wireless Propagation Letters, 2022 A wideband slot array antenna at W-band with a single-layer corporate feeding network is presented in this letter. The radiating slots are fed by open-ended rectangular waveguides to widen the impedance bandwidth instead of a commonly used coupling ...
Peiye Liu, G. F. Pedersen, Shuai Zhang
semanticscholar +1 more source
Sensors, 2012 Slot waveguides are becoming more and more attractive optical components, especially for chemical and bio-chemical sensing. In this paper an accurate analysis of slot waveguide fabrication tolerances is carried out, in order to find optimum design ...
Vittorio M. N. Passaro, Mario La Notte
doaj +1 more source
Electronics Letters, 1997 A waveguide slot element, excited by a thin strip, printed and kept behind the slot is presented. The slot is vertical and non-wrap around, whereas the strip is inclined with respect to the slot or takes an L-shape. The strip and the slot are printed simultaneously on a dielectric substrate and replaces the narrow wall of the guide.
S. Apu, M. Sachidananda
openaire +1 more source
Design and Study of Strip-Slot Waveguide Structure for Dispersion Analysis
IEEE Photonics Journal, 2016 We propose a slot waveguide design for dispersion compensation at the wavelength of 1500 nm. The proposed structure is based on coupled strip slot waveguide.
Nandam Ashok, Yeung Lak Lee, WooJin Shin
doaj +1 more source