The registry between NP layers has a negligible effect on the stopband features. (A) Two sets of structural parameters in mP and base-centered monoclinic (mC) lattices with either fixed layer periodicity (fixed z) or fixed lattice constant c (fixed c) while changing the angle. (B) Rmax, (C) λ0, and (D) normalized bandwidth (Δλ/λ0) of hR, mP, and mC lattices with either fixed c or z as a function of the angle α. In the fixed c (z) case, c (z) is 240 nm.