Figure 6.

Investigation of the influence of the spectral bandwidth of the light source (FWHM) and camera exposure time on the thickness fitting for a flat microcavity. (a) Reflectance spectra for a single pixel within the field of view for different exposure times (spectral bandwidth, 4.6 nm) are shown. (b) The thickness of the microcavity for the same exposure times as in (a) is given. Scale bars, 5 μm. The black box indicates the pixel for which spectrum is shown in (a). (c) A semi-log plot of average deviation between experimentally determined and simulated sets of minima for the fitted cavity thicknesses versus spectral bandwidth (top) and camera exposure time (bottom) is given. Error bars represent the standard deviation of the average error; for better visibility, they are only shown for 10 ms exposure time and 4.6 nm FWHM. To see this figure in color, go online.