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Subwavelength Grating Double Slot Waveguide Racetrack Ring Resonator for Refractive Index Sensing Application [PDF]
Sensors, 2020 In this paper, a racetrack ring resonator design based on a subwavelength grating double slot waveguide is presented. The proposed waveguide scheme is capable of confining the transverse electric field in the slots and the gaps between the grating ...
Svetlana N Khonina +2 more
exaly +4 more sources
Optical Slot-Waveguide Based Biochemical Sensors
Sensors, 2009 Slot-waveguides allow light to be guided and strongly confined inside a nanometer-scale region of low refractive index. Thus stronger light-analyte interaction can be obtained as compared to that achievable by a conventional waveguide, in which the ...
Carlos A. Barrios
exaly +4 more sources
Investigation of an In-Line Slot Waveguide Sensor Built in a Tapered D-Shaped Silicon-Cored Fiber [PDF]
Sensors, 2021 An in-line slot waveguide sensor built in a polished flat platform of a D-shaped silicon cored fiber with a taper coupled region is proposed and investigated thoroughly.
Kai-Ju Lin, Lon A. Wang
doaj +2 more sources
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 ...
Yang Yue, Alan E. Willner, Lin Zhang
exaly +3 more sources
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
Makoto Tsubokawa
exaly +3 more sources
Compact THz absorption spectroscopy using a LiNbO3 slot waveguide [PDF]
Light: Science & ApplicationsTHz spectroscopy is a powerful tool for studying a variety of samples, ranging from large biomolecules to solid-state materials. In cases where experimental space is limited or sample volumes are small, THz waveguides have been used to enable compact THz
Eric R. Sung, Keith A. Nelson
doaj +2 more sources
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
exaly +3 more sources
Flattened Dispersion in Silicon Slot Waveguides
Optics Express, 2010 We propose a silicon strip/slot hybrid waveguide that produces flattened dispersion of 0 ± 16 ps/(nm∙km), over a 553-nm wavelength range, which is 20 times flatter than previous results. Different from previously reported slot waveguides, the strip/slot hybrid waveguide employs the mode transition from a strip mode to a slot mode to introduce unique ...
Yang Yue, Alan E. Willner, Lin Zhang
exaly +3 more sources
Nanoimprint Fabrication of Slot Waveguides
IEEE Photonics Journal, 2013 A nanoimprint mold for optical waveguide applications was fabricated by combining photolithography and focused ion beam (FIB) milling. The feasibility of the proposed method was demonstrated by imprinting 15-mm-long Y-branch waveguides, which had ...
Marianne Hiltunen +5 more
doaj +3 more sources
Parametric optimization of the slot waveguide characteristics using a machine-learning approach [PDF]
Scientific ReportsSlot waveguides provide high electric field amplitude and optical power in low-index materials that are not possible with conventional waveguides. This specific property of the slot waveguide provides interaction between active material and electric ...
Yadvendra Singh +2 more
doaj +2 more sources