Fast surface plasmon resonance imaging sensor using Radon transform

A. Karabchevsky, S. Karabchevsky, I. Abdulhalim

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


Surface plasmon resonance (SPR) imaging technique is proposed in which a diverging laser beam at given frequency was used to illuminate the entire sensor surface in Kretschmann-Raether configuration. A pattern of dark intensity line on bright background is observed corresponding to the SPR dip at an angular range depending on the refractive index of the adjacent analyte and monitored by a two-dimensional CCD detector. A novel Radon transform based detection algorithm for the SPR line pattern is proposed, which is non sensitive to the laser speckle noise and improves the accuracy.

Original languageEnglish
Pages (from-to)361-365
Number of pages5
JournalSensors and Actuators, B: Chemical
Issue number1
StatePublished - 5 Jul 2011


  • Biosensing
  • Imaging
  • Radon transform
  • Surface plasmon resonance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry


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