Measuring near-field nanoparticle concentration profiles by correlating surface plasmon resonance reflectance with effective refractive index of nanofluids

Optics Letters
Il Tai Kim, Kenneth D Kihm

Abstract

Time-dependent and near-field nanoparticle concentrations are determined by correlating the surface plasmon resonance (SPR) reflectance intensities with the effective refractive index (ERI) of the nanofluid under evaporation. A critical angle measurement for total internal reflection identifies the ERI of the nanofluid at different nanoparticle concentrations. The corresponding SPR reflectance intensities correlate the nanofluidic ERI with the nanoparticle concentrations. Example applications for evaporating nanofluidic droplets containing 47 nmAl(2)O(3) particles demonstrate the feasibility of this new imaging tool for measuring time-resolved and full-field nanoparticle concentration profiles.

References

Dec 7, 2007·Optics Letters·Il Tai Kim, Kenneth David Kihm
Sep 2, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Iltai Kim, Kenneth D Kihm

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Citations

Jun 2, 2012·Nanoscale Research Letters·Kanjirakat Anoop, Reza Sadr
Oct 19, 2010·Biosensors & Bioelectronics·Abdennour AbbasQuan Cheng
Jul 16, 2015·Materials·Iltai Isaac Kim, Kenneth David Kihm
May 29, 2018·Optics Express·Jiwei ZhangJianlin Zhao
Oct 9, 2012·Optics Letters·Sosan CheonByung Hee Hong
Nov 25, 2018·Optics Express·Siqing DaiJianlin Zhao

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