Figure 16.
(a) A representative transmission spectrum for a thinner polymer-coated device while on resonance. The dashed line is a Lorentzian fit to the spectrum, which yields a Q of 2.5 × 105; (b) Rendering of the testing setup. The inset shows the tapered optical fiber and the hybrid microtoroid; (c) Noise measurement and resonant wavelength shift as a function of relative humidity change at 23 °C for bare silica, thinner, and thicker polymer-film-coated devices. The error bars in the measurement are smaller than the symbols. Reprinted from [93] with permission of AIP Publishing LLC.