Liquid-infiltrated photonic crystals: Ohmic dissipation and broadening of modes

N. A. Mortensen; S. Ejsing; S. Xiao

doi:10.2971/jeos.2006.06032

Journal of the European Optical Society - Rapid publications, Vol 1 (2006)

Liquid-infiltrated photonic crystals: Ohmic dissipation and broadening of modes

N. A. Mortensen, S. Ejsing, S. Xiao

Abstract

The pronounced light-matter interactions in photonic crystals make them interesting as opto-fludic "building blocks" for lab-on-a-chip applications. We show how conducting electrolytes cause dissipation and smearing of the density-of-states, thus altering decay dynamics of excited bio-molecules dissolved in the electrolyte. Likewise, we find spatial damping of propagating modes, of the order dB/cm, for naturally occurring electrolytes such as drinking water or physiological salt water.

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