Fig. 2
The real [Re(neff)] and imaginary [Im(neff)] parts of the effective index, and absorption versus wavelength with different values of μc, τ, and dg. a–c Re(neff), Im(neff), and absorption versus wavelength (τ=0.1, 0.3, and 0.5 ps, associated with μ = 0.14, 0.42, 0.69 m2V−1s−1, respectively) with μc = 0.65 eV and dg = 1 nm. d–f Re(neff), Im(neff), and absorption versus wavelength (μc=0.45, 0.55, 0.65, and 0.75 eV) with τ = 0.5 ps and dg =1 nm. g–i Re(neff), Im(neff), and absorption versus wavelength [dg=0.34 nm (n = 1), 1 nm (n = 3), and 1.7 nm (n = 5)] with μc = 0.65 eV and τ = 0.5 ps. For all the cases, the grating period is fixed at p = 4 μm