Browsing College of Science by Author "Owens, Peter"

Now showing items 1-4 of 4

    • Frequency domain fluorescence lifetime study of crude petroleum oils 

      Owens, Peter; Ryder, Alan G.; Blamey, Nigel J. (Springer Verlag, 2008-02-01)
      Frequency domain (FD) fluorescence lifetime data was collected for a series of 20 crude petroleum oils using a 405 nm excitation source and over a spectral range of similar to 426 to similar to 650 nm. Average fluorescence ...

    • In vivo correlation mapping microscopy 

      McGrath, James; Alexandrov, Sergey; Owens, Peter; Subhash, Hrebesh; Leahy, Martin (Society of Photo-optical Instrumentation Engineers (SPIE), 2016-03)
      To facilitate regular assessment of the microcirculation in vivo, noninvasive imaging techniques such as nailfold capillaroscopy are required in clinics. Recently, a correlation mapping technique has been applied to optical ...

    • 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 ...

    • Low Temperature Fluorescence Studies of Crude Petroleum Oils 

      Owens, Peter; Ryder, Alan G. (2011)
      We have studied the low-temperature (133-298 K) fluorescence emission of crude petroleum oils using a combination of steady-state and time-resolved measurements. This was done, first, to see if we could generate linear ...