Simulation on wavelength-dependent complex refractive index of liquids obtained by phase retrieval from reflectance dip due to surface plasmon resonance.
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.
Saarinen
Jarkko J
JJ
Department of Physics, University of Joensuu, PO Box 111, FIN-80101 Joensuu, Finland.
Peiponen
Kai-Erik
KE
Vartiainen
Erik M
EM
D000465:Algorithms; D003198:Computer Simulation; D005240:Feasibility Studies; D005505:Food Coloring Agents / Q000032:analysis / Q000737:chemistry; D008956:Models, Chemical; D009391:Nephelometry and Turbidimetry / Q000379:methods*; D012031:Refractometry / Q000379:methods*; D012996:Solutions / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000379:methods*
D005505:Food Coloring Agents; D012996:Solutions