quasinietdispersieve
Quasinietdispersieve is a term used in wave physics to describe materials or engineered structures that approximate non-dispersive propagation over a finite spectral range. The word combines quasi-, indicating approximation, with nietdispersieve, a constructed form meaning non-dispersive, to signify near-constant phase and group velocities within a targeted bandwidth.
In dispersive media, the refractive index n(ω) varies with frequency ω, causing different spectral components of a
Realizations rely on dispersion engineering through composite materials, metamaterials, photonic crystals, or specially designed fiber or
Limitations include finite bandwidth over which dispersion is suppressed, sensitivity to fabrication tolerances, intrinsic material losses,