Blar i forfatter "Angelskår, Hallvard"

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    • Study of waveguide background at visible wavelengths for on-chip nanoscopy 

      Coucheron, David Andre; Helle, Øystein I.; Wilkinson, James S.; Murugan, Ganapathy Senthil; Domínguez, Carlos; Angelskår, Hallvard; Ahluwalia, Balpreet S. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-17)
      On-chip super-resolution optical microscopy is an emerging field relying on waveguide excitation with visible light. Here, we investigate two commonly used high-refractive index waveguide platforms, tantalum pentoxide (Ta<sub>2</sub>O<sub>5</sub>) and silicon nitride (Si<sub>3</sub>N<sub>4</sub>), with respect to their background with excitation in the range 488–640 nm. The background strength from ...