Rigorous coupled-wave method applied to fan-out gratings

This paper extends and generalises the rigorous coupled-wave method (for volume-phase holograms), in order to study multiplexed (fan-out) gratings recorded in the same volume. The theory is equally applicable to transmission and reflection gratings replayed with TE polarised light and is consistent with published experimental data. Reflection fan-out holograms are shown to be more efficient and have a higher replay fidelity than their transmission counterparts