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A notch above for single nanoparticle detection

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Caren B. Les, [email protected]

Working in the field of single nanoparticle detection, researchers have demonstrated strong optical coupling between an on-chip notched microring resonator and a nanoparticle in the notch. “Recently, it was found that the electromagnetic modes of certain photonic devices are very similar to the electronic wave functions of molecules,” said Yasha Yi, who led the team that performed the work. “One of the most interesting examples is microring resonators, especially when we arrange two or more microring resonators together within optical coupling regime. The...Read full article

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    Published: October 2010
    Glossary
    atomic force microscope
    An atomic force microscope (AFM) is a high-resolution imaging and measurement instrument used in nanotechnology, materials science, and biology. It is a type of scanning probe microscope that operates by scanning a sharp tip (usually a few nanometers in diameter) over the surface of a sample at a very close distance. The tip interacts with the sample's surface forces, providing detailed information about the sample's topography and properties at the nanoscale. Key features and principles of...
    microring resonator
    A microring resonator is a compact optical device that utilizes the resonant behavior of light within a small ring-shaped waveguide structure to selectively enhance or filter certain wavelengths of light. Microring resonators are essential components in integrated photonics and are used in various applications, including optical communication systems, sensing, and signal processing. Key features and principles of microring resonators include: Ring structure: A microring resonator consists...
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    resonator
    A resonator is a device or system that exhibits resonance, which is a phenomenon that occurs when an external force or stimulus is applied at a specific frequency, causing the system to oscillate with increased amplitude. Resonators are found in various fields and can take different forms depending on the type of waves involved, such as mechanical waves, acoustic waves, electromagnetic waves, or optical waves. Key points about resonators: Resonance: Resonance is a condition where a...
    Academia SinicaAFMApplied Physics Lettersatomic force microscopeBasic ScienceCaren B. LesChinaCity University of New YorkCMOSCommunicationsConsumerdetectiondielectric silicon nanoparticleselectromagneticevanescent couplinggold nanoparticlesGraduate CenterImagingindustrialIntegrated Nanophotonics LabmicrochipmicroresonatorMicroring resonatorMicroscopyMITmoleculesnanoparticlesnanoscaleNew York Universitynotchoptical couplingphotonicsResearch & TechnologyresonatorSensors & DetectorsTech PulseYasha Yi

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