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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Anal Chem. 2010 Jan 1;82(1):343–352. doi: 10.1021/ac902038d

Figure 1.

Figure 1

(a) Spectra of light emitted by one MSPRS in air (120 ± 20 nm gold-coating thickness on 780 ± 6 nm diameter polystyrene nanospheres) excited using white light in two configurations: (solid line) the MSPRS is illuminated from the top of the sensor and the emitted light collected through the nanoaperture and (dashed line) the MSPRS is illuminated through the nanoaperture and the emitted light collected from the top of the sensor. (b) Spectra of MSPRS-emitted light and neighboring bare flat gold (10 μm to left of the MSPRS) under air (n = 1.000) and under DI-water (n = 1.333). (c) Lorentzian fit of the MSPRS-spectrum under air: (solid line) experiment, (○) multi-peak fit (R2 = 0.9964), (△) individual peaks and (dotted line) MSPRS-spectrum under water (experiment). (d) Lorentzian fit of the MSPRS-spectrum under DI-water: (solid line) experiment, (○) multi-peak fit (R2 = 0.9968), (△) individual peaks and (dotted line) MSPRS-spectrum under air (experiment).