Results 21 to 30 of about 11,380 (266)
A 1064 nm Deep-Etched Wide-Ridge Waveguide Slab-Coupled Photonic Crystal Semiconductor Laser
PhotonicsSemiconductor lasers are key devices in optical communication, optical storage and other fields. Achieving single-mode, high-power and high-beam-quality output is an important research goal in laser technology. Conventional slab-coupled optical waveguide
Jianxin Zhang +8 more
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On the Possibility of Miniature Diamond-Based Magnetometers Using Waveguide Geometries
Micromachines, 2018 We propose the use of a diamond waveguide structure to enhance the sensitivity of magnetometers relying on the detection of the spin state of nitrogen-vacancy ensembles in diamond by infrared optical absorption.
Lykourgos Bougas +11 more
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Evanescent Waveguide Sensor for On-Chip Biomolecular Detection
Proceedings, 2017 This work presents analysis and development of an evanescent waveguide sensor system, which integrates an amorphous silicon photodiode and a glass-diffused waveguide.
Giampiero de Cesare +3 more
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Nanomaterials, 2022 A novel one-dimensional parity-time-symmetric periodic ring optical waveguide network (1D PTSPROWN) is constructed using magnesium fluoride (MgF2), by adjusting the length ratio of gain and loss materials in PT-symmetric waveguide and ordinary dielectric
Xian Liang +6 more
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Surface sensing with integrated optical waveguides: a design guideline
Optics Express, 2018 Waveguide-based biochemical sensors exploit detection of target molecules that bind specifically to a functionalized waveguide surface. For optimum sensitivity, the waveguide should be designed to mediate maximum influence of the surface layer on the effective refractive index of the guided mode.
Johannes Milvich +3 more
openaire +4 more sources
Direct generation of entangled photon pairs in nonlinear optical waveguides
Nanophotonics, 2022 Entangled photons are pivotal elements in emerging quantum information technologies. While several schemes are available for the production of entangled photons, they typically require the assistance of cumbersome optical elements to couple them to other
Rodríguez Echarri Álvaro +2 more
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Investigation of Optical-Switching Mechanism Using Guided Mode Resonances
Photonics, 2022 Recently, photonic crystals have paved the way to control photonic signals. Therefore, this research numerically investigated the design of the optical switch using the guided-mode resonances in photonic crystals operating in a communication window ...
Atiq Ur Rehman +3 more
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Advanced Engineering Materials, EarlyView.Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami +4 more
wiley +1 more source
Ibn Al-Haitham Journal for Pure and Applied SciencesThe efficiency of solar systems was developed through the design of a torus waveguide, which provides high flexibility in the design of the solar system. The design was simulated using the optical design program (ANSYS Zemax Optic Studio 2022).
Kawthar H. Abd Al-Majeed +2 more
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Comparative Study of Nano-Slot Silicon Waveguides Covered by Dye Doped and Undoped Polymer Cladding
Applied Sciences, 2018 Nonlinear optical dyes doped in optical polymer matrices are widely used for electro-optical devices. Linear optical properties change with dye concentration, which leads to a change in modal properties, especially in nano-structured integrated ...
Siegfried Bondarenko +2 more
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