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. 2018 Mar 15;8:4642. doi: 10.1038/s41598-018-22895-5

Figure 7.

Figure 7

Effect of the current density offset (JOffset) and the pore widening time (tpw) on the QPSB and λPSB of non-apodized and logarithmic negative apodized NAA-DBRs. (a and b) Representative anodization profiles of non-apodized (TP = 1500 s, AJ = 0.420 mA cm−2, and tSTPA = 20 h) and apodized NAA-DBRs (apodization function = logarithmic negative, TP = 1500 s, ΔAJ = 0.210 mA cm−2, and tASTPA = 20 h), respectively. (c and d) Transmission spectra of non-apodized and apodized NAA-DBRs showing the PSB as a function of the pore widening time, respectively. (e and f) Contour maps showing the dependency of QPSB of non-apodized and apodized NAA-DBRs as a function of JOffset and tpw, respectively. (g and h) Contour maps showing the dependency of λPSB of non-apodized and apodized NAA-DBRs as a function of JOffset and tpw, respectively.