Now showing items 1-4 of 4

    • Compressive sampling methods for superresolution imaging 

      Chuang, Yi-Chen; Dudley, Richard; Fiddy, Michael A. (2012)
      We investigate superresolution imaging using negative index metamaterials. Measurement of subwavelength scale features in the image domain is tedious and compressive sampling techniques are considered to alleviate this ...
    • A new approach to a practical subwavelength resolving microscope 

      Chuang, Yi-Chen; Dudley, Richard; Fiddy, Michael A. (2013)
      Superresolution depends on near-field capture and transfer of high spatial frequencies from the scattering object. These evanescent waves are transferred to a near-field image domain using a negative index material. Measuring ...
    • Optimal arrangement of meta-atoms composing metamaterials 

      Chuang, Yi-Chen; Dudley, Richard; Fiddy, Michael A. (2012)
      In order to better understand how to improve the performance of a superlens, structural and geometrical arrangements of meta-atoms are investigated. Each ...
    • Superresolved image reconstruction from incomplete data 

      Chuang, Yi-Chen; Dudley, Richard; Fiddy, Michael A. (2012)
      A finite thickness slab of a metamaterial having a refractive index close to n = -1, can be used for sub-wavelength scale imaging. In the image domain, the measured fields contain evanescent wave contributions from ...