Subwavelength line imaging using plasmonic waveguides

Nina Podoliak, Peter Horak, Jord C. Prangsma, Pepijn W.H. Pinkse

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
6 Downloads (Pure)


We investigate the subwavelength imaging capacity of a 2-D fanned-out plasmonic waveguide array, formed by air channels surrounded by gold metal layers for operation at near-infrared wavelengths, via finite-element simulations. High resolution is achieved on one side of the device by tapering down the channel width, while simultaneously maintaining propagation losses of a few decibels. On the other, low-resolution, side output couplers are designed to optimize coupling to free space and to minimize channel cross talk via surface plasmons. Point sources separated by λ/15 can still be clearly distinguished. Moreover, up to 90% of the power of a point dipole is coupled to the device. Applications are high-resolution linear detector arrays and, by operating the device in reverse, high-resolution optical writing.

Original languageEnglish
Article number6995938
JournalIEEE journal of quantum electronics
Issue number2
Publication statusPublished - 1 Feb 2015


  • High-resolution imaging
  • Plasmon waveguides
  • Surface plasmon
  • 2023 OA procedure


Dive into the research topics of 'Subwavelength line imaging using plasmonic waveguides'. Together they form a unique fingerprint.

Cite this