Browsing School of Physics by Subject "spatial frequency"

Now showing items 1-2 of 2

    • Label free ultra-sensitive imaging with sub-diffraction spatial resolution 

      Alexandrov, Sergey; Das, Nandan; McGrath, James; Owens, Peter; Sheppard, Colin J. R.; Boccafoschi, Francesca; Giannini, Cinzia; Sibillano, Teresa; Subhash, Hrebesh; Leahy, Martin (IEEE, 2019-07-09)
      In this paper, we show a new way to break the resolution limit and dramatically improve sensitivity to structural changes. To realize it we developed a novel label free contrast mechanism, based on the spectral encoding ...

    • Spectral encoding of spatial frequency approach for characterization of nanoscale structures 

      Alexandrov, Sergey; Uttam, Shikhar; Bista, Rajan K.; Staton, Kevin; Liu, Yang (American Institute of Physics, 2012-07-17)
      An approach to acquire axial structural information at nanoscale is demonstrated. It is based on spectral encoding of spatial frequency principle to reconstruct the structural information about the axial profile of the ...