Results 11 to 20 of about 486,399 (248)
High Speed Terahertz Modulator on the Chip Based on Tunable Terahertz Slot Waveguide. [PDF]
Sci Rep, 2017 This paper presents an on-chip device that can perform gigahertz-rate amplitude modulation and switching of broadband terahertz electromagnetic waves. The operation of the device is based on the interaction of confined THz waves in a novel slot waveguide
Singh PK, Sonkusale S.
europepmc +2 more sources
Sensors and Actuators B: Chemical, 2019 The reported chalcogenide (ChG) waveguide sensor mainly focuses on rectangular waveguide with a small evanescent field for light-gas interaction. In order to improve the sensing performance in the mid-infrared spectral range and ease wavguide fabrication,
Mingquan Pi +7 more
semanticscholar +3 more sources
A Metal-Assisted Silicon Slot Waveguide for Highly Sensitive Gas Detection
IEEE Photonics Journal, 2017 A metal-assisted silicon slot waveguide for highly sensitive gas detection is proposed. To show the superiority of the proposed structure, the optical confinement factor in the gas region and the sensitivity are theoretically investigated using the 2-D ...
Yuhei Ishizaka +3 more
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An 8-Channel Wavelength MMI Demultiplexer in Slot Waveguide Structures. [PDF]
Materials (Basel), 2016 We propose a novel 8-channel wavelength multimode interference (MMI) demultiplexer in slot waveguide structures that operate at 1530 nm, 1535 nm, 1540 nm, 1545 nm, 1550 nm, 1555 nm, 1560 nm, and 1565 nm.
Ben Zaken BB, Zanzury T, Malka D.
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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
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3D Printed Waveguide Slot Array Antennas
IEEE Access, 2016 Waveguide slot array antennas can have high gain, since the power distribution network (waveguide) has low loss, enabling a large aperture size. Rapid response to requirements for frequency, gain, and skew angle inspired a search for an alternative to ...
Gregory Peter Le Sage
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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
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A Photonic 1 × 4 Power Splitter Based on Multimode Interference in Silicon-Gallium-Nitride Slot Waveguide Structures. [PDF]
Materials (Basel), 2016 In this paper, a design for a 1 × 4 optical power splitter based on the multimode interference (MMI) coupler in a silicon (Si)–gallium nitride (GaN) slot waveguide structure is presented—to our knowledge, for the first time.
Malka D, Danan Y, Ramon Y, Zalevsky Z.
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Label-Free Biosensing With a Slot-Waveguide-Based Ring Resonator in Silicon on Insulator
IEEE Photonics Journal, 2009 We present a slot-waveguide-based ring resonator in silicon on insulator (SOI) with a footprint of only 13 mum times 10 mum, fabricated with optical lithography.
Tom Claes +5 more
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Silicon Waveguide Sensors for Carbon Dioxide Gas Sensing in the Mid-Infrared Region
Photonics, 2023 Two optical waveguide sensors based on SOS (silicon-on-sapphire) for detecting CO2 are theoretically proposed. The operational wavelength is 4.23 μm, which is the maximum absorption line of CO2. The power confinement factor (η) value is over 40% and 50%,
Yuxia Song +5 more
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