Deep subwavelength imaging via tunable terahertz plasmons Academic Article uri icon


  • 2018 Author(s). A deep subwavelength structured illumination microscopy scheme via tunable plasmons is proposed. The sample is placed on a semiconductor heterostructure where terahertz plasmons generated by a current-driven instability illuminate it. Full coverage of the spatial frequency regime is obtained by tuning the plasmons through adjusting gate voltage. Hence, it is possible to reconstruct an image with a resolution down to 75 nm and up to two orders of magnitude beyond the diffraction limit. Due to the linear nature of the technique, only a weak illumination signal is required, which minimizes the likelihood of sample damage and has potential applications in bioimaging.

published proceedings


author list (cited authors)

  • Abbas, H. T., Zeng, X., Nevels, R. D., & Zubairy, M. S.

citation count

  • 4

complete list of authors

  • Abbas, Hasan Tahir||Zeng, Xiaodong||Nevels, Robert D||Zubairy, M Suhail

publication date

  • July 2018