Blar i forfatter "Hasan, Md Rabiul"

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    • Dielectric nanoantennas and metasurfaces for optical trapping 

      Hasan, Md Rabiul (Doctoral thesis; Doktorgradsavhandling, 2023-09-14)
      Analysis of biological nanoparticles in medical sciences is very promising, as it can reveal groundbreaking information about disease mechanisms, potentially leading to innovative and more effective treatment strategies. The existing methods used for analyzing biological nanoparticles come with several limitations, involving extensive sample preparation, and giving limited information about the ...

    • Dielectric optical nanoantennas 

      Hasan, Md Rabiul; Hellesø, Olav Gaute (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-22)
      Nanophotonics allows the manipulation of light on the subwavelength scale. Optical nanoantennas are nanoscale elements that enable increased resolution in bioimaging, novel photon sources, solar cells with higher absorption, and the detection of fluorescence from a single molecule. While plasmonic nanoantennas have been extensively explored in the literature, dielectric nanoantennas have several ...

    • Metasurface supporting quasi-BIC for optical trapping and Raman-spectroscopy of biological nanoparticles 

      Hasan, Md Rabiul; Hellesø, Olav Gaute (Journal article; Tidsskriftartikkel, 2023-02-09)
      Optical trapping combined with Raman spectroscopy have opened new possibilities for analyzing biological nanoparticles. Conventional optical tweezers have proven successful for trapping of a single or a few particles. However, the method is slow and cannot be used for the smallest particles. Thus, it is not adapted to analyze a large number of nanoparticles, which is necessary to get statistically ...