Simulation on wavelength-dependent complex refractive index of liquids obtained by phase retrieval from reflectance dip due to surface plasmon resonance

Appl Spectrosc. 2003 Mar;57(3):288-92. doi: 10.1366/000370203321558191.

Abstract

A method for the calculation of the wavelength-dependent complex refractive index of absorbing liquid from reflectance in the vicinity of surface plasmon resonance (SPR) is presented. The calculation is based on the maximum entropy method (MEM). As an example, phase retrieval from a simulated SPR reflectance of a red colored liquid solution is carried out. It is proposed that MEM can be applied to wavelength-dependent complex refractive index assessment from reflectance of absorbing liquids in SPR measurement in wavelength scanning mode.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms*
  • Computer Simulation
  • Feasibility Studies
  • Food Coloring Agents / analysis
  • Food Coloring Agents / chemistry
  • Models, Chemical*
  • Nephelometry and Turbidimetry / methods*
  • Refractometry / methods*
  • Solutions / chemistry*
  • Surface Plasmon Resonance / methods*

Substances

  • Food Coloring Agents
  • Solutions